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Norsk

Guangyu Cao

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Guangyu Cao

Professor
Department of Energy and Process Engineering
Faculty of Engineering

guangyu.cao@ntnu.no
+4773593859 +4791897689 Varmeteknisk, Gløshaugen, Kolbjørn Hejes vei 1b, 7491 Trondheim
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About

Guangyu Cao received his PhD degree in 2009 in Helsinki University of Technology. From 2009 till 2014, he worked at VTT Technical Research Centre of Finland as senior scientist. Since October 2014, he has worked as professor at Department of Energy and Process Engineering, Norwegian University of Science and Technology. His research interests are ventilation in hospitals, indoor airflow distribution, thermal comfort, indoor air quality, built environment quality and protected zone ventilation.

Public appointment and international advisory works

1) Norwegian national representative in the European standard working group CEN TC156 WG18 Ventilation in hospitals

2) A core member and co-chair of Technical and Research Committee in REHVA - Federation of European Heating, Ventilation and Air-conditioning Associations

3) A core member of REHVA- COVID-19 Task force

4) An editorial board member of Journal of Building Engineering (The Impact Factor of this journal is 5.318, ranking it 13 out of 136 in Engineering)

5) Member of steering group of Norwegian national indoor air organization

6) Vice president of Healthy Building Europe conference 2021 (about 300 participants)

7) Member of International Scientific Committee of Cold Climate HVAC conference 2021

8) Scientific committee member of Ventilation conference 2022

 

Research projects:

 

EU Marie Curie DTN (2024–2027) - HumanIC project

EU H2020 iclimabuilt-prosjekt (2021–2025) - iclimabuilt project

NFR DIGG-MIN-SKOLE (2022-2025) - DIGG MIN SKOLE

NFR POSIred prosjekt (2020-2024)

NTNU Discovery CONDILIGHT (2019-2022)

Helse Midt Norge innovation project: St. Olavs hospital – Indoor Environment in operating rooms (2020-2021)

Extrastiftelsen Norway, Skole på vent project (2018-2020)

 

 

Research

My research focuses on indoor air quality, airflow distribution and ventilation solutions, with a particular emphasis on healthcare environments. During recent years, we have been working on better understanding and improving air distribution in various spaces, especially operating rooms and buildings. We employ a combination of experimental studies and mathematical modeling to evaluate the effectiveness of different ventilation strategies in managing airborne contaminants such as viruses and bacteria.

Key areas of my research include:

Ventilation in Operating Rooms: Understanding the complexities of ventilation systems in operating rooms. Investigate the effects of air distribution patterns, temperature, and the movement of surgical personnel on contamination levels during surgeries.

Airborne Disease Transmission: Evaluate the airborne transmission of diseases, particularly in the context of COVID-19. Examine the roles of ventilation rates, humidity, and air distribution in minimizing the risk of viral contamination indoors.

Indoor Air Quality in Schools: Examine indoor air quality in schools and the effect of indoor environment quality on students' health. This work critically evaluates the relationship between indoor air quality and student health, contributing to improved school environments.

Experimental and Simulated Studies: Combine experimental measurements with computational modeling to assess ventilation strategies. Develop effective guidelines to enhance indoor air quality and reduce exposure risks.

 

  • Energy and indoor environment

Publications

  • Chronological
  • By category
  • All publications registered in NVA

2025

  • Alam, Azimil Gani; Eide, Iselin Ørbek; Eskedal, Christer; Gustavsen, Kai; Hart, Kent; Cao, Guangyu. (2025) REHVA Journal The Influence of Outdoor Conditions on Indoor Air Quality in Norwegian Schools. REHVA Journal
    Academic article
  • Alam, Azimil Gani; Mathisen, Hans Martin; Cao, Guangyu; Bartonova, Alena; Høiskar, Britt Ann Kåstad; Fredriksen, Mirjam. (2025) Machine Learning Prediction of Student Satisfaction on Indoor Air Quality and Thermal Environment in a Norwegian Secondary School. ASHRAE Conference Proceedings
    Abstract
  • Rosti, Behnam; Jankovic, Aleksandar; Goia, Francesco; Mathisen, Hans Martin; Cao, Guangyu. (2025) Design and performance analysis of a low-cost monitoring system for advanced building envelopes. Building and Environment
    Academic article
  • Bi, Yang; Hu, Nan; Sadeghian, Parastoo; Sadrizadeh, Sasan; Morgensti, Marina Asuero Von Munthe Af; Mathisen, Hans Martin. (2025) Numerical study on the application of low-turbulence air curtain surrounding laminar airflow distribution in operating rooms. Building Simulation
    Academic article
  • Bi, Yang; Fecer, Tomas; Mathisen, Hans Martin; Stenstad, Liv-Inger; Skogås, Jan Gunnar; Kiss, Gabriel Hanssen. (2025) Modeling of body temperature for perioperative patients in the operating room. Energy and Buildings
    Academic article
  • Alam, Azimil Gani; Bartonova, Alena; Høiskar, Britt Ann Kåstad; Fredriksen, Mirjam; Sharma, Jivitesh; Mathisen, Hans Martin. (2025) Predicting the student's perceptions of multi-domain environmental factors in a Norwegian school building: Machine learning approach. Building and Environment
    Academic article

2024

  • Li, Xiaoxu; Huang, Kailiang; Feng, Guohui; Cao, Guangyu; Li, Ainong; Teng, Xu. (2024) New Makeup Air Method through Ceiling for Kitchen Ventilation in Severely Cold Regions and Its Effect on Air Environment. Atmosphere
    Academic article
  • Chaulagain, Aayam; Mathisen, Hans Martin; Alam, Azimil Gani; Bartonova, Alena; Fredriksen, Mirjam; Høiskar, Britt Ann Kåstad. (2024) Evaluation of the indoor environment and perceived IEQ : a case study in Norwegian primary schools.
    Academic chapter/article/Conference paper
  • Aganovic, Amar; Buonanno, Giorgio; Cao, Guangyu; Delmaar, Christiaan; Kurnitski, Jarek; Mikszewski, Alex. (2024) Comparative assessment of airborne infection risk tools in enclosed spaces: Implications for disease control. Infectious Disease Modelling
    Article in business/trade/industry journal
  • Xu, Yukun; Wei, Xiaobin; He, Lianjie; Xia, Yunfei; Yu, Yanlei; Zeng, Lingjie. (2024) Impact of human walking on the pollutant removal effectiveness of direction air supply considering environmental disturbances: Dynamic simulation study. Building and Environment
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Kurnitski, Jarek; Wargocki, Pawel. (2024) Corrigendum to “New dose-response model and SARS-CoV-2 quanta emission rates for calculating the long-range airborne infection risk” [Build. Environ. 228 (2023) 109924] (S0360132322011544), (10.1016/j.buildenv.2022.109924). Building and Environment
    Errata
  • Gao, Jun; Yu, Manjiang; Xu, Yukun; He, Lianjie; Zeng, Lingjie; Cao, Guangyu. (2024) Use of wearable ventilation for reducing the infection risk of healthcare workers in isolation wards: A numerical study. Building and Environment
    Academic article
  • Xu, Yukun; Luo, Xiawei; Xia, Yunfei; Cao, Guangyu; Wei, Xiaobin; Zhang, Xu. (2024) Dynamic coordinated air supply for moving individuals in industrial settings: Effectiveness evaluation and demonstration. Building and Environment
    Academic article

2023

  • Fečer, Tomáš; Morgenstierne, Marina Asuero Von Munthe Af; Bi, Yang; Mathisen, Hans Martin; Harsem, Thorgeir; Stenstad, Liv-Inger. (2023) Interaction of thermal plumes from a patient wound with mixing and laminar airflow at different room temperatures in two operating rooms at St. Olav’s hospital. REHVA European HVAC Journal
    Article in business/trade/industry journal
  • Xu, Yukun; Wei, Xiaobin; Xia, Yunfei; Yu, Yanlei; Zeng, Lingjie; Cao, Guangyu. (2023) Prompt design of direction air supply using CFD-based proper orthogonal decomposition method considering locally dense sample distribution. Building and Environment
    Academic article
  • Xu, Yukun; Wei, Xiaobin; Yu, Yanlei; Xia, Yunfei; Zeng, Lingjie; Cao, Guangyu. (2023) Inverse design of dynamic protective air supply based on proper orthogonal decomposition. Sustainable Cities and Society (SCS)
    Academic article
  • Wei, Xiaobin; Xu, Yukun; Ma, Mingyao; Cao, Changsheng; Niu, Guozhen; Cao, Guangyu. (2023) Effect of ambient interferences on the effectiveness of a wearable ventilation for reducing pollutant exposure. Journal of Building Engineering
    Academic article
  • Wei, Xiaobin; Xu, Yukun; Yu, Yanlei; Ma, Mingyao; Niu, Guozhen; Cao, Guangyu. (2023) Effectiveness of head-mounted air supply in reducing pollutant exposure: A static case. Building and Environment
    Academic article

2022

  • Sadrizadeh, Sasan; Yao, Runming; Yuan, Feng; Awbi, Hazim; Bahnfleth, William; Bi, Yang. (2022) Indoor air quality and health in schools: A critical review for developing the roadmap for the future school environment. Journal of Building Engineering
    Academic article
  • Bi, Yang; Aganovic, Amar; Mathisen, Hans Martin; Cao, Guangyu. (2022) Experimental study on the exposure level of surgical staff to SARS-CoV-2 in operating rooms with mixing ventilation under negative pressure. Building and Environment
    Academic article
  • Larkermani, Elyas; Cao, Guangyu; Georges, Laurent. (2022) Characterization of the density-driven counter-flow through a doorway using Large Eddy Simulation. Building and Environment
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Kurnitski, Jarek; Melikov, Arsen; Wargocki, Pawel. (2022) Zonal modeling of air distribution impact on the long-range airborne transmission risk of SARS-CoV-2. Applied Mathematical Modelling
    Academic article
  • Aganovic, Amar; Bi, Yang; Cao, Guangyu; Kurnitski, Jarek; Wargocki, Pawel. (2022) Modeling the impact of indoor relative humidity on the airborne transmission of several respiratory viruses risk using a modified Wells-Riley model.
    Academic chapter/article/Conference paper
  • Aganovic, Amar; Bi, Yang; Cao, Guangyu; Kurnitski, Jarek; Wargocki, Pawel. (2022) Modeling the impact of indoor relative humidity on the infection risk of five respiratory airborne viruses. Scientific Reports
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Wargocki, Pawel; Kurnitski, Jarek. (2022) New dose-response model and SARS-CoV-2 quanta emission rates for calculating the long-range airborne infection risk. Building and Environment
    Academic article
  • Sadeghian, Parastoo; Bi, Yang; Cao, Guangyu; Sadrizadeh, Sasan. (2022) Reducing the risk of viral contamination during the coronavirus pandemic by using a protective curtain in the operating room. Patient Safety in Surgery
    Academic article

2021

  • Yuan, Feng; Yao, Runming; Sadrizadeh, Sasan; Li, Baiyi; Cao, Guangyu; Zhang, Shaoxing. (2021) Thermal comfort in hospital buildings – A literature review. Journal of Building Engineering
    Academic literature review
  • Fečer, Tomáš; Hatten, Thea Solberg; Bi, Yang; Cao, Guangyu. (2021) Numerical simulation of thermal environment at different relative humidity levels in one operating room of St. Olav’s hospital. REHVA European HVAC Journal
    Academic article
  • Cao, Guangyu; Pedersen, Christoffer; Zhang, Yixian; Drangsholt, Finn; Radtke, Andreas; Langvatn, Håkon. (2021) Can clothing systems and human activity in operating rooms with mixed flow ventilation systems help achieve the ultraclean air requirement (≤10 CFU/m3) during orthopaedic surgeries?. Journal of Hospital Infection
    Academic article
  • Ruud, Mathilde; Baglo, Mona Skar; Øgreid, Andreas Undheim; Vu, Ivan; Lervik, Kari Thorset; Cao, Guangyu. (2021) Infection probability of COVID-19 in a large lecture room with mechanical ventilation. REHVA European HVAC Journal
    Popular scientific article
  • Annaqeeb, Masab Khalid; Zhang, Yixian; Dziedzic, Jakub Wladyslaw; Xue, Kai; Pedersen, Christoffer; Stenstad, Liv-Inger. (2021) Influence of the surgical team activity on airborne bacterial distribution in the operating room with mixing ventilation system: A case study at St. Olavs Hospital. Journal of Hospital Infection
    Academic article
  • Cheng, Zhu; Lei, Nuoa; Cao, Guangyu; Li, Baizhan. (2021) The investigation of the influence of thermal plume and breathing on sleeping microenvironment. Journal of Environmental Health Science and Engineering
    Academic article
  • Ding, Yiyu; Ivanko, Dmytro; Cao, Guangyu; Brattebø, Helge; Nord, Natasa. (2021) Analysis of electricity use and economic impacts for buildings with electric heating under lockdown conditions: examples for educational buildings and residential buildings in Norway. Sustainable Cities and Society (SCS)
    Academic article
  • Su, Wei; Yang, Bin; Melikov, Arsen; Liang, Chenjiyu; Lu, Yalin; Wang, Faming. (2021) Infection probability under different air distribution patterns. Building and Environment
    Academic article
  • Aganovic, Amar; Bi, Yang; Cao, Guangyu; Drangsholt, Finn; Kurnitski, Jarek; Wargocki, Pawel. (2021) Estimating the impact of indoor relative humidity on SARS-CoV-2 airborne transmission risk using a new modification of the Wells-Riley model. Building and Environment
    Academic article
  • Cheng, Zhu; Aganovic, Amar; Cao, Guangyu; Bu, Zhongming. (2021) Experimental and simulated evaluations of airborne contaminant exposure in a room with a modified localized laminar airflow system. Environmental Science and Pollution Research
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Fečer, Tomáš; Ljungqvist, Bengt L.; Lytsy, Birgitta; Radtke, Andreas. (2021) Ventilation design conditions associated with airborne bacteria levels within the wound area during surgical procedures: a systematic review. Journal of Hospital Infection
    Academic literature review
  • Xue, Kai; Hossain, Uzzal; Liu, Meng; Ma, Mingjun; Zhang, Yizhi; Hu, Mengqiang. (2021) BIM Integrated LCA for Promoting Circular Economy towards Sustainable Construction: An Analytical Review. Sustainability
    Academic article
  • Fan, Minchao; Cao, Guangyu; Pedersen, Christoffer; Lu, Shilei; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2021) Suitability evaluation on laminar airflow and mixing airflow distribution strategies in operating rooms: A case study at St. Olavs Hospital. Building and Environment
    Academic article
  • Cao, Guangyu; Holøs, Sverre Bjørn; Kim, Moon-Keun; Schild, Peter G.. (2021) Healthy Buildings 2021 – Europe Proceedings of the 17th International Healthy Buildings Conference 21-23 June 2021. SINTEF akademisk forlag SINTEF akademisk forlag
    Academic anthology/Conference proceedings
  • Ulvestad, Anita; Cao, Guangyu; Gustavsen, Kai; Vogt, Matthias; Rismyhr, Tore; Yang, Zhirong. (2021) Analysis of the effect of indoor environment on pupils’ health in one Norwegian school during COVID-19 pandemic.
    Academic chapter/article/Conference paper
  • Bi, Yang; Heggebø, Frida Josefine; Harsem, Trond Thorgeir; Mathisen, Hans Martin; Aganovic, Amar; Cao, Guangyu. (2021) Experimental Study on the Surgical Microenvironment in an Operating Room with Mixing Ventilation under Positive and Negative Pressure.
    Academic chapter/article/Conference paper
  • Heggebø, Frida Josefine; Bi, Yang; Harsem, Trond Thorgeir; Mathisen, Hans Martin; Cao, Guangyu. (2021) Experimental study on the thermal plume from a surgeon in an operating room with mixing ventilation during COVID-19 pandemic.
    Academic chapter/article/Conference paper
  • Kuivjõgi, Helena; Cao, Guangyu. (2021) Thermal Comfort Level of Patients and Surgical Staff in Operating Rooms at Nordic Hospital.
    Academic chapter/article/Conference paper
  • Sadrizadeh, Sasan; Aganovic, Amar; Bogdan, Anna; Wang, Cong; Afshari, Alireza; Hartmann, Anne. (2021) A systematic review of operating room ventilation. Journal of Building Engineering
    Academic article
  • Schild, Peter G.; Holøs, Sverre Bjørn; Cao, Guangyu. (2021) Healthy Buildings Europe 2021: Book of abstracts. 17th International Conference, 21st-23rd June 2021, Online/Oslo. OsloMet - storbyuniversitetet OsloMet - storbyuniversitetet
    Academic anthology/Conference proceedings

2020

  • Xue, Kai; Cao, Guangyu; Liu, Meng; Zhang, Yixian; Pedersen, Christoffer; Mathisen, Hans Martin. (2020) Experimental study on the effect of exhaust airflows on the surgical environment in an operating room with mixing ventilation. Journal of Building Engineering
    Academic article
  • Xue, Kai; Ding, Yiyu; Yang, Zhirong; Nord, Natasa; Barillec, Mael Roger Albert; Mathisen, Hans Martin. (2020) A Simple and Novel Method to Predict the Hospital Energy Use Based on Machine Learning: A Case Study in Norway. Communications in Computer and Information Science (CCIS)
    Academic article
  • Zhang, Yixian; Cao, Guangyu; Feng, Guohui; Xue, Kai; Pedersen, Christoffer; Mathisen, Hans Martin. (2020) The impact of air change rate on the air quality of surgical microenvironment in an operating room with mixing ventilation. Journal of Building Engineering
    Academic article
  • Shu, Haiwen; Wang, Hongbin; Cao, Guangyu. (2020) Thermal and flow resistance characteristics of a parallel-pipe type natural heat transfer air-conditioning terminal device for nearly zero energy buildings. Indoor and Built Environment
    Academic article
  • Nitter, Therese Bergh; Grande, Morten S.; Svendsen, Kristin V Hirsch; Jørgensen, Rikke Bramming; Carlucci, Salvatore; Cao, Guangyu. (2020) Can CO2 sensors in the ventilation system of a pool facility help reduce the variability in the trihalomethane concentration observed in indoor air?. Environment International
    Academic article
  • Cao, Guangyu; Mathisen, Hans Martin; Aganovic, Amar. (2020) Soneventilasjon for beskyttelse mot luftbårne smittestoffer i sykehus. Norsk VVS
    Article in business/trade/industry journal
  • Langvatn, Håkon; Schrama, Johannes Cornelis; Cao, Guangyu; Hallan, Geir; Furnes, Ove; Lingaas, Egil. (2020) Operating room ventilation and the risk of revision due to infection after total hip arthroplasty: assessment of validated data in the Norwegian Arthroplasty Register. Journal of Hospital Infection
    Academic article
  • Zukowska, Daria; Rojas, Gabriel; Burman, Esfand; Guyot, Gaelle; Bocanegra-Yanez, Maria del Carmen; Laverge, Jelle. (2020) Ventilation in low energy residences – a survey on code requirements, implementation barriers and operational challenges from seven European countries. The International Journal of Ventilation
    Academic article
  • He, Yunlong; Dai, Yanjun; Cao, Guangyu. (2020) Experimental research on effectiveness of personalized ventilation in sleep environment of an infant. Journal of HV&AC
    Academic article
  • Cheng, Zhu; Cao, Guangyu; Aganovic, Amar; Li, Baizhan. (2020) Experimental study of the interaction between thermal plumes and human breathing in an undisturbed indoor environment. Energy and Buildings
    Academic article
  • Cao, Guangyu; Kvammen, Ingeborg; Hatten, Thea Amalie Solberg; Zhang, Yixian; Stenstad, Liv-Inger; Kiss, Gabriel. (2020) Experimental measurements of surgical microenvironments in two operating rooms with laminar airflow and mixing ventilation systems. Energy and Built Environment (EBE)
    Academic article
  • Cao, Guangyu; Mathisen, Hans Martin; Schild, Peter G.; Wargocki, Pawel; Melikov, Arsen Krikov; Bivolarova, Mariya. (2020) SCANVAC: A petition for measures against airborne transmission of infectious diseases. http://www.scanvac.eu/scanvac-petition.html
    Popular scientific article
  • Shu, Haiwen; Bie, Xu; Zhang, Hongliang; Xu, Xiaoyue; Du, Yu; Ma, Yi. (2020) Natural heat transfer air-conditioning terminal device and its system configuration for ultra-low energy buildings. Renewable Energy
    Academic article
  • Shu, Haiwen; Bie, Xu; Jiang, Shan; Yang, Zhiqiang; Zhang, Yang; Shu, Gao. (2020) Characteristics of a natural heat transfer air-conditioning terminal device for nearly zero energy buildings. Environmental Science and Engineering
    Academic article
  • Kurnitski, Jarek; Boerstra, A.; Franchimon, Francesco; Sikonczyk, Igor; Dijken, Froukje van; Lungu, Catalin. (2020) REHVA COVID19 Guidance version 4.0. https://www.rehva.eu/activities/covid-19-guidance
    Popular scientific article

2019

  • Aganovic, Amar; Cao, Guangyu; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2019) An experimental study on the effects of positioning medical equipment on contaminant exposure of a patient in an operating room with unidirectional downflow. Building and Environment
    Academic article
  • Yang, Bin; Melikov, Arsen Krikov; Kabanshi, Alan; Zhang, Chen; Bauman, Fred S.; Cao, Guangyu. (2019) A review of advanced air distribution methods - theory, practice, limitations and solutions. Energy and Buildings
    Academic literature review
  • Cao, Guangyu; Nilssen, Anders Mostrøm; Mathisen, Hans Martin; Zhang, Yixian; Xue, Kai; Stenstad, Liv-Inger. (2019) Comparison of laminar and mixing airflow pattern in operating rooms of a Norwegian hospital. REHVA European HVAC Journal
    Academic article
  • Zhang, Yixian; Feng, Guohui; Bi, Yang; Cai, Yilin; Zhang, Zheng; Cao, Guangyu. (2019) Distribution of droplet aerosols generated by mouth coughing and nosebreathing in an air-conditioned room. Sustainable Cities and Society (SCS)
    Academic article
  • Lestinen, Sami; Kilpeläinen, Simo; Kosonen, Risto; Jokisalo, Juha; Koskela, Hannu; Li, Angui. (2019) Indoor airflow interactions with symmetrical and asymmetrical heat load distributions under diffuse ceiling ventilation. Science and Technology for the Built Environment
    Academic article
  • Hamon, Mathieu Pierre; Cao, Guangyu; Skreiberg, Øyvind; Georges, Laurent; Seljeskog, Morten; Khalil, Roger Antoine. (2019) Assessment of the Effects of Using Wood Stoves on Indoor Air Quality in Two Types of Norwegian Houses.
    Academic chapter/article/Conference paper
  • Aganovic, Amar; Steffensen, Marie; Cao, Guangyu. (2019) CFD study of the air distribution and occupant draught sensation in a patient ward equipped with protected zone ventilation. Building and Environment
    Academic article
  • Pedersen, Christoffer; Cao, Guangyu; Drangsholt, Finn; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2019) Can we meet the requirement for ultra-clean operation room (10CFU/m3) with dilution ventilation?. E3S Web of Conferences
    Academic article
  • Cao, Guangyu; Nilssen, Anders Mostrøm; Cheng, Zhu; Stenstad, Liv-Inger; Radtke, Andreas; Skogås, Jan Gunnar. (2019) Laminar airflow and mixing ventilation: Which is better for operating room airflow distribution near an orthopedic surgical patient?. American Journal of Infection Control
    Academic article
  • Aganovic, Amar; Cao, Guangyu. (2019) Evaluation of airborne contaminant exposure in a single-bed isolation ward equipped with a protected occupied zone ventilation system. Indoor and Built Environment
    Academic article

2018

  • Cao, Guangyu; Storås, Madeleine C. A.; Aganovic, Amar; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2018) Do surgeons and surgical facilities disturb the clean air distribution close to a surgical patient in an orthopedic operating room with laminar airflow?. American Journal of Infection Control
    Academic article

2017

  • Aganovic, Amar; Cao, Guangyu; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2017) Impact of surgical lights on the velocity distribution and airborne contamination level in an operating room with laminar airflow system. Building and Environment
    Academic article
  • Ye, Wei; Zhang, Xu; Gao, Jun; Cao, Guangyu; Zhou, Xiang; Su, Xing. (2017) Indoor air pollutants, ventilation rate determinants and potential control strategies in Chinese dwellings: A literature review. Science of the Total Environment
    Academic article
  • Cao, Guangyu; Sirén, Kai; Kilpeläinen, Simo. (2017) Experimental study of the transverse diffusion of pollutants through a downward plane jet in a room. The International Journal of Ventilation
    Academic article
  • Cao, Guangyu; Liu, S; Boor, BE; Novoselac, Atila. (2017) Dynamic interaction of a downward plane jet and a cough jet with respect to particle transmission: An analytical and experimental study. Journal of Occupational and Environmental Hygiene
    Academic article
  • Cao, Guangyu; Li, Xiangli; Duanmu, Lin. (2017) The 8th International Cold Climate HVAC Conference (Cold Climate 2015). Science and Technology for the Built Environment
    Editorial
  • Zhang, Xu; Taipale, Aimo; Li, Xianting; Cao, Guangyu; Gao, Jun; Ye, Wei. (2017) Celebrating 30 years of conference series on industrial ventilation-health, comfort and efficiency. The International Journal of Ventilation
    Editorial

2016

  • Søgnen, Odin; Mathisen, Hans Martin; Alonso, Maria Justo; Cao, Guangyu. (2016) Indoor Air Quality in a Zero Emission Building.
    Academic chapter/article/Conference paper
  • Cao, Guangyu; Georges, Laurent; Skreiberg, Øyvind; Seljeskog, Morten. (2016) An experimental study on how a wood stove affects the indoor air quality when used as the main source of heating in two representative Norwegian dwellings, one modern and one old.
    Academic chapter/article/Conference paper
  • Polak, Joanna; Cao, Guangyu; Georges, Laurent; Skreiberg, Øyvind. (2016) Experimental study of the airflow distribution inside and between two zones with temperature differences with an air curtain system.
    Academic chapter/article/Conference paper
  • Georges, Laurent; Cao, Guangyu; Mathisen, Hans Martin. (2016) Further Investigation of the Convective Heat Transfer between Rooms through Open Doorways.
    Academic chapter/article/Conference paper
  • Nord, Natasa; Qvistgaard, Live Holmedal; Cao, Guangyu. (2016) Identifying key design parameters of the integrated energy system for a residential Zero Emission Building in Norway. Renewable Energy
    Academic article
  • Solberg, Karoline Veum; Cao, Guangyu; Alonso, Maria Justo; Burud, Jens Petter. (2016) A Field Study of the Indoor Climate in an Energy Efficient Building in Norway.
    Academic chapter/article/Conference paper

2015

  • Cao, Guangyu; Shichao, Liu; Boor, Brandon; Novoselac, Atila. (2015) Characterizing the dynamic interactions and exposure implications of a particle- laden cough jet with different room airflow regimes produced by low and high momentum jets. Aerosol and Air Quality Research
    Academic article
  • Nord, Natasa; Mathisen, Hans Martin; Cao, Guangyu. (2015) Energy cost models for air supported sports hall in cold climates considering energy efficiency. Renewable Energy
    Academic article

2014

  • Cao, Guangyu; Nielsen, Peter V.; Jensen, Rasmus L.; Heiselberg, Per; Liu, Li; Heikkinen, Jorma. (2014) You have full text access to this content Protected zone ventilation and reduced personal exposure to airborne cross-infection. Indoor Air
    Academic article
  • Cao, Guangyu; Awbi, Hazim; Yao, Runming; Fan, Yunqing; Sirén, Kai; Kosonen, Risto. (2014) A review of the performance of different ventilation and airflow distribution systems in buildings. Building and Environment
    Academic literature review
  • Cao, Guangyu; Sirén, Kai; Kilpeläinen, Simo. (2014) Modelling and experimental study of performance of the protected occupied zone ventilation. Energy and Buildings
    Academic article

2013

  • Cao, Guangyu; Kandzia, Claudia; Müller, Dirk; Heikkinen, Jorma; Kosonen, Risto; Ruponen, Mika. (2013) Experimental study of the effect of turbulence intensities on the maximum velocity decay of an attached plane jet. Energy and Buildings
    Academic article

2011

  • Cao, Guangyu; Jokisalo, Juha; Feng, Guohui; Duanmu, Lin; Vuolle, Mika; Kurnitski, Jarek. (2011) Simulation of the heating performance of the Kang system in one Chinese detached house using biomass. Energy and Buildings
    Academic article
  • Cao, Guangyu; Ruponen, Mika; Paavilainen, Risto; Kurnitski, Jarek. (2011) Modelling and simulation of the near-wall velocity of a turbulent ceiling attached plane jet after its impingement with the corner. Building and Environment
    Academic article

2010

  • Cao, Guangyu; Sivukari, Markku; Kurnitski, Jarek; Ruponen, Mika. (2010) PIV measurement of the attached plane jet velocity field at a high turbulence intensity level in a room. International Journal of Heat and Fluid Flow
    Academic article

Journal publications

  • Alam, Azimil Gani; Eide, Iselin Ørbek; Eskedal, Christer; Gustavsen, Kai; Hart, Kent; Cao, Guangyu. (2025) REHVA Journal The Influence of Outdoor Conditions on Indoor Air Quality in Norwegian Schools. REHVA Journal
    Academic article
  • Alam, Azimil Gani; Mathisen, Hans Martin; Cao, Guangyu; Bartonova, Alena; Høiskar, Britt Ann Kåstad; Fredriksen, Mirjam. (2025) Machine Learning Prediction of Student Satisfaction on Indoor Air Quality and Thermal Environment in a Norwegian Secondary School. ASHRAE Conference Proceedings
    Abstract
  • Rosti, Behnam; Jankovic, Aleksandar; Goia, Francesco; Mathisen, Hans Martin; Cao, Guangyu. (2025) Design and performance analysis of a low-cost monitoring system for advanced building envelopes. Building and Environment
    Academic article
  • Bi, Yang; Hu, Nan; Sadeghian, Parastoo; Sadrizadeh, Sasan; Morgensti, Marina Asuero Von Munthe Af; Mathisen, Hans Martin. (2025) Numerical study on the application of low-turbulence air curtain surrounding laminar airflow distribution in operating rooms. Building Simulation
    Academic article
  • Bi, Yang; Fecer, Tomas; Mathisen, Hans Martin; Stenstad, Liv-Inger; Skogås, Jan Gunnar; Kiss, Gabriel Hanssen. (2025) Modeling of body temperature for perioperative patients in the operating room. Energy and Buildings
    Academic article
  • Alam, Azimil Gani; Bartonova, Alena; Høiskar, Britt Ann Kåstad; Fredriksen, Mirjam; Sharma, Jivitesh; Mathisen, Hans Martin. (2025) Predicting the student's perceptions of multi-domain environmental factors in a Norwegian school building: Machine learning approach. Building and Environment
    Academic article
  • Li, Xiaoxu; Huang, Kailiang; Feng, Guohui; Cao, Guangyu; Li, Ainong; Teng, Xu. (2024) New Makeup Air Method through Ceiling for Kitchen Ventilation in Severely Cold Regions and Its Effect on Air Environment. Atmosphere
    Academic article
  • Aganovic, Amar; Buonanno, Giorgio; Cao, Guangyu; Delmaar, Christiaan; Kurnitski, Jarek; Mikszewski, Alex. (2024) Comparative assessment of airborne infection risk tools in enclosed spaces: Implications for disease control. Infectious Disease Modelling
    Article in business/trade/industry journal
  • Xu, Yukun; Wei, Xiaobin; He, Lianjie; Xia, Yunfei; Yu, Yanlei; Zeng, Lingjie. (2024) Impact of human walking on the pollutant removal effectiveness of direction air supply considering environmental disturbances: Dynamic simulation study. Building and Environment
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Kurnitski, Jarek; Wargocki, Pawel. (2024) Corrigendum to “New dose-response model and SARS-CoV-2 quanta emission rates for calculating the long-range airborne infection risk” [Build. Environ. 228 (2023) 109924] (S0360132322011544), (10.1016/j.buildenv.2022.109924). Building and Environment
    Errata
  • Gao, Jun; Yu, Manjiang; Xu, Yukun; He, Lianjie; Zeng, Lingjie; Cao, Guangyu. (2024) Use of wearable ventilation for reducing the infection risk of healthcare workers in isolation wards: A numerical study. Building and Environment
    Academic article
  • Xu, Yukun; Luo, Xiawei; Xia, Yunfei; Cao, Guangyu; Wei, Xiaobin; Zhang, Xu. (2024) Dynamic coordinated air supply for moving individuals in industrial settings: Effectiveness evaluation and demonstration. Building and Environment
    Academic article
  • Fečer, Tomáš; Morgenstierne, Marina Asuero Von Munthe Af; Bi, Yang; Mathisen, Hans Martin; Harsem, Thorgeir; Stenstad, Liv-Inger. (2023) Interaction of thermal plumes from a patient wound with mixing and laminar airflow at different room temperatures in two operating rooms at St. Olav’s hospital. REHVA European HVAC Journal
    Article in business/trade/industry journal
  • Xu, Yukun; Wei, Xiaobin; Xia, Yunfei; Yu, Yanlei; Zeng, Lingjie; Cao, Guangyu. (2023) Prompt design of direction air supply using CFD-based proper orthogonal decomposition method considering locally dense sample distribution. Building and Environment
    Academic article
  • Xu, Yukun; Wei, Xiaobin; Yu, Yanlei; Xia, Yunfei; Zeng, Lingjie; Cao, Guangyu. (2023) Inverse design of dynamic protective air supply based on proper orthogonal decomposition. Sustainable Cities and Society (SCS)
    Academic article
  • Wei, Xiaobin; Xu, Yukun; Ma, Mingyao; Cao, Changsheng; Niu, Guozhen; Cao, Guangyu. (2023) Effect of ambient interferences on the effectiveness of a wearable ventilation for reducing pollutant exposure. Journal of Building Engineering
    Academic article
  • Wei, Xiaobin; Xu, Yukun; Yu, Yanlei; Ma, Mingyao; Niu, Guozhen; Cao, Guangyu. (2023) Effectiveness of head-mounted air supply in reducing pollutant exposure: A static case. Building and Environment
    Academic article
  • Sadrizadeh, Sasan; Yao, Runming; Yuan, Feng; Awbi, Hazim; Bahnfleth, William; Bi, Yang. (2022) Indoor air quality and health in schools: A critical review for developing the roadmap for the future school environment. Journal of Building Engineering
    Academic article
  • Bi, Yang; Aganovic, Amar; Mathisen, Hans Martin; Cao, Guangyu. (2022) Experimental study on the exposure level of surgical staff to SARS-CoV-2 in operating rooms with mixing ventilation under negative pressure. Building and Environment
    Academic article
  • Larkermani, Elyas; Cao, Guangyu; Georges, Laurent. (2022) Characterization of the density-driven counter-flow through a doorway using Large Eddy Simulation. Building and Environment
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Kurnitski, Jarek; Melikov, Arsen; Wargocki, Pawel. (2022) Zonal modeling of air distribution impact on the long-range airborne transmission risk of SARS-CoV-2. Applied Mathematical Modelling
    Academic article
  • Aganovic, Amar; Bi, Yang; Cao, Guangyu; Kurnitski, Jarek; Wargocki, Pawel. (2022) Modeling the impact of indoor relative humidity on the infection risk of five respiratory airborne viruses. Scientific Reports
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Wargocki, Pawel; Kurnitski, Jarek. (2022) New dose-response model and SARS-CoV-2 quanta emission rates for calculating the long-range airborne infection risk. Building and Environment
    Academic article
  • Sadeghian, Parastoo; Bi, Yang; Cao, Guangyu; Sadrizadeh, Sasan. (2022) Reducing the risk of viral contamination during the coronavirus pandemic by using a protective curtain in the operating room. Patient Safety in Surgery
    Academic article
  • Yuan, Feng; Yao, Runming; Sadrizadeh, Sasan; Li, Baiyi; Cao, Guangyu; Zhang, Shaoxing. (2021) Thermal comfort in hospital buildings – A literature review. Journal of Building Engineering
    Academic literature review
  • Fečer, Tomáš; Hatten, Thea Solberg; Bi, Yang; Cao, Guangyu. (2021) Numerical simulation of thermal environment at different relative humidity levels in one operating room of St. Olav’s hospital. REHVA European HVAC Journal
    Academic article
  • Cao, Guangyu; Pedersen, Christoffer; Zhang, Yixian; Drangsholt, Finn; Radtke, Andreas; Langvatn, Håkon. (2021) Can clothing systems and human activity in operating rooms with mixed flow ventilation systems help achieve the ultraclean air requirement (≤10 CFU/m3) during orthopaedic surgeries?. Journal of Hospital Infection
    Academic article
  • Ruud, Mathilde; Baglo, Mona Skar; Øgreid, Andreas Undheim; Vu, Ivan; Lervik, Kari Thorset; Cao, Guangyu. (2021) Infection probability of COVID-19 in a large lecture room with mechanical ventilation. REHVA European HVAC Journal
    Popular scientific article
  • Annaqeeb, Masab Khalid; Zhang, Yixian; Dziedzic, Jakub Wladyslaw; Xue, Kai; Pedersen, Christoffer; Stenstad, Liv-Inger. (2021) Influence of the surgical team activity on airborne bacterial distribution in the operating room with mixing ventilation system: A case study at St. Olavs Hospital. Journal of Hospital Infection
    Academic article
  • Cheng, Zhu; Lei, Nuoa; Cao, Guangyu; Li, Baizhan. (2021) The investigation of the influence of thermal plume and breathing on sleeping microenvironment. Journal of Environmental Health Science and Engineering
    Academic article
  • Ding, Yiyu; Ivanko, Dmytro; Cao, Guangyu; Brattebø, Helge; Nord, Natasa. (2021) Analysis of electricity use and economic impacts for buildings with electric heating under lockdown conditions: examples for educational buildings and residential buildings in Norway. Sustainable Cities and Society (SCS)
    Academic article
  • Su, Wei; Yang, Bin; Melikov, Arsen; Liang, Chenjiyu; Lu, Yalin; Wang, Faming. (2021) Infection probability under different air distribution patterns. Building and Environment
    Academic article
  • Aganovic, Amar; Bi, Yang; Cao, Guangyu; Drangsholt, Finn; Kurnitski, Jarek; Wargocki, Pawel. (2021) Estimating the impact of indoor relative humidity on SARS-CoV-2 airborne transmission risk using a new modification of the Wells-Riley model. Building and Environment
    Academic article
  • Cheng, Zhu; Aganovic, Amar; Cao, Guangyu; Bu, Zhongming. (2021) Experimental and simulated evaluations of airborne contaminant exposure in a room with a modified localized laminar airflow system. Environmental Science and Pollution Research
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Fečer, Tomáš; Ljungqvist, Bengt L.; Lytsy, Birgitta; Radtke, Andreas. (2021) Ventilation design conditions associated with airborne bacteria levels within the wound area during surgical procedures: a systematic review. Journal of Hospital Infection
    Academic literature review
  • Xue, Kai; Hossain, Uzzal; Liu, Meng; Ma, Mingjun; Zhang, Yizhi; Hu, Mengqiang. (2021) BIM Integrated LCA for Promoting Circular Economy towards Sustainable Construction: An Analytical Review. Sustainability
    Academic article
  • Fan, Minchao; Cao, Guangyu; Pedersen, Christoffer; Lu, Shilei; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2021) Suitability evaluation on laminar airflow and mixing airflow distribution strategies in operating rooms: A case study at St. Olavs Hospital. Building and Environment
    Academic article
  • Sadrizadeh, Sasan; Aganovic, Amar; Bogdan, Anna; Wang, Cong; Afshari, Alireza; Hartmann, Anne. (2021) A systematic review of operating room ventilation. Journal of Building Engineering
    Academic article
  • Xue, Kai; Cao, Guangyu; Liu, Meng; Zhang, Yixian; Pedersen, Christoffer; Mathisen, Hans Martin. (2020) Experimental study on the effect of exhaust airflows on the surgical environment in an operating room with mixing ventilation. Journal of Building Engineering
    Academic article
  • Xue, Kai; Ding, Yiyu; Yang, Zhirong; Nord, Natasa; Barillec, Mael Roger Albert; Mathisen, Hans Martin. (2020) A Simple and Novel Method to Predict the Hospital Energy Use Based on Machine Learning: A Case Study in Norway. Communications in Computer and Information Science (CCIS)
    Academic article
  • Zhang, Yixian; Cao, Guangyu; Feng, Guohui; Xue, Kai; Pedersen, Christoffer; Mathisen, Hans Martin. (2020) The impact of air change rate on the air quality of surgical microenvironment in an operating room with mixing ventilation. Journal of Building Engineering
    Academic article
  • Shu, Haiwen; Wang, Hongbin; Cao, Guangyu. (2020) Thermal and flow resistance characteristics of a parallel-pipe type natural heat transfer air-conditioning terminal device for nearly zero energy buildings. Indoor and Built Environment
    Academic article
  • Nitter, Therese Bergh; Grande, Morten S.; Svendsen, Kristin V Hirsch; Jørgensen, Rikke Bramming; Carlucci, Salvatore; Cao, Guangyu. (2020) Can CO2 sensors in the ventilation system of a pool facility help reduce the variability in the trihalomethane concentration observed in indoor air?. Environment International
    Academic article
  • Cao, Guangyu; Mathisen, Hans Martin; Aganovic, Amar. (2020) Soneventilasjon for beskyttelse mot luftbårne smittestoffer i sykehus. Norsk VVS
    Article in business/trade/industry journal
  • Langvatn, Håkon; Schrama, Johannes Cornelis; Cao, Guangyu; Hallan, Geir; Furnes, Ove; Lingaas, Egil. (2020) Operating room ventilation and the risk of revision due to infection after total hip arthroplasty: assessment of validated data in the Norwegian Arthroplasty Register. Journal of Hospital Infection
    Academic article
  • Zukowska, Daria; Rojas, Gabriel; Burman, Esfand; Guyot, Gaelle; Bocanegra-Yanez, Maria del Carmen; Laverge, Jelle. (2020) Ventilation in low energy residences – a survey on code requirements, implementation barriers and operational challenges from seven European countries. The International Journal of Ventilation
    Academic article
  • He, Yunlong; Dai, Yanjun; Cao, Guangyu. (2020) Experimental research on effectiveness of personalized ventilation in sleep environment of an infant. Journal of HV&AC
    Academic article
  • Cheng, Zhu; Cao, Guangyu; Aganovic, Amar; Li, Baizhan. (2020) Experimental study of the interaction between thermal plumes and human breathing in an undisturbed indoor environment. Energy and Buildings
    Academic article
  • Cao, Guangyu; Kvammen, Ingeborg; Hatten, Thea Amalie Solberg; Zhang, Yixian; Stenstad, Liv-Inger; Kiss, Gabriel. (2020) Experimental measurements of surgical microenvironments in two operating rooms with laminar airflow and mixing ventilation systems. Energy and Built Environment (EBE)
    Academic article
  • Cao, Guangyu; Mathisen, Hans Martin; Schild, Peter G.; Wargocki, Pawel; Melikov, Arsen Krikov; Bivolarova, Mariya. (2020) SCANVAC: A petition for measures against airborne transmission of infectious diseases. http://www.scanvac.eu/scanvac-petition.html
    Popular scientific article
  • Shu, Haiwen; Bie, Xu; Zhang, Hongliang; Xu, Xiaoyue; Du, Yu; Ma, Yi. (2020) Natural heat transfer air-conditioning terminal device and its system configuration for ultra-low energy buildings. Renewable Energy
    Academic article
  • Shu, Haiwen; Bie, Xu; Jiang, Shan; Yang, Zhiqiang; Zhang, Yang; Shu, Gao. (2020) Characteristics of a natural heat transfer air-conditioning terminal device for nearly zero energy buildings. Environmental Science and Engineering
    Academic article
  • Kurnitski, Jarek; Boerstra, A.; Franchimon, Francesco; Sikonczyk, Igor; Dijken, Froukje van; Lungu, Catalin. (2020) REHVA COVID19 Guidance version 4.0. https://www.rehva.eu/activities/covid-19-guidance
    Popular scientific article
  • Aganovic, Amar; Cao, Guangyu; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2019) An experimental study on the effects of positioning medical equipment on contaminant exposure of a patient in an operating room with unidirectional downflow. Building and Environment
    Academic article
  • Yang, Bin; Melikov, Arsen Krikov; Kabanshi, Alan; Zhang, Chen; Bauman, Fred S.; Cao, Guangyu. (2019) A review of advanced air distribution methods - theory, practice, limitations and solutions. Energy and Buildings
    Academic literature review
  • Cao, Guangyu; Nilssen, Anders Mostrøm; Mathisen, Hans Martin; Zhang, Yixian; Xue, Kai; Stenstad, Liv-Inger. (2019) Comparison of laminar and mixing airflow pattern in operating rooms of a Norwegian hospital. REHVA European HVAC Journal
    Academic article
  • Zhang, Yixian; Feng, Guohui; Bi, Yang; Cai, Yilin; Zhang, Zheng; Cao, Guangyu. (2019) Distribution of droplet aerosols generated by mouth coughing and nosebreathing in an air-conditioned room. Sustainable Cities and Society (SCS)
    Academic article
  • Lestinen, Sami; Kilpeläinen, Simo; Kosonen, Risto; Jokisalo, Juha; Koskela, Hannu; Li, Angui. (2019) Indoor airflow interactions with symmetrical and asymmetrical heat load distributions under diffuse ceiling ventilation. Science and Technology for the Built Environment
    Academic article
  • Aganovic, Amar; Steffensen, Marie; Cao, Guangyu. (2019) CFD study of the air distribution and occupant draught sensation in a patient ward equipped with protected zone ventilation. Building and Environment
    Academic article
  • Pedersen, Christoffer; Cao, Guangyu; Drangsholt, Finn; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2019) Can we meet the requirement for ultra-clean operation room (10CFU/m3) with dilution ventilation?. E3S Web of Conferences
    Academic article
  • Cao, Guangyu; Nilssen, Anders Mostrøm; Cheng, Zhu; Stenstad, Liv-Inger; Radtke, Andreas; Skogås, Jan Gunnar. (2019) Laminar airflow and mixing ventilation: Which is better for operating room airflow distribution near an orthopedic surgical patient?. American Journal of Infection Control
    Academic article
  • Aganovic, Amar; Cao, Guangyu. (2019) Evaluation of airborne contaminant exposure in a single-bed isolation ward equipped with a protected occupied zone ventilation system. Indoor and Built Environment
    Academic article
  • Cao, Guangyu; Storås, Madeleine C. A.; Aganovic, Amar; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2018) Do surgeons and surgical facilities disturb the clean air distribution close to a surgical patient in an orthopedic operating room with laminar airflow?. American Journal of Infection Control
    Academic article
  • Aganovic, Amar; Cao, Guangyu; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2017) Impact of surgical lights on the velocity distribution and airborne contamination level in an operating room with laminar airflow system. Building and Environment
    Academic article
  • Ye, Wei; Zhang, Xu; Gao, Jun; Cao, Guangyu; Zhou, Xiang; Su, Xing. (2017) Indoor air pollutants, ventilation rate determinants and potential control strategies in Chinese dwellings: A literature review. Science of the Total Environment
    Academic article
  • Cao, Guangyu; Sirén, Kai; Kilpeläinen, Simo. (2017) Experimental study of the transverse diffusion of pollutants through a downward plane jet in a room. The International Journal of Ventilation
    Academic article
  • Cao, Guangyu; Liu, S; Boor, BE; Novoselac, Atila. (2017) Dynamic interaction of a downward plane jet and a cough jet with respect to particle transmission: An analytical and experimental study. Journal of Occupational and Environmental Hygiene
    Academic article
  • Cao, Guangyu; Li, Xiangli; Duanmu, Lin. (2017) The 8th International Cold Climate HVAC Conference (Cold Climate 2015). Science and Technology for the Built Environment
    Editorial
  • Zhang, Xu; Taipale, Aimo; Li, Xianting; Cao, Guangyu; Gao, Jun; Ye, Wei. (2017) Celebrating 30 years of conference series on industrial ventilation-health, comfort and efficiency. The International Journal of Ventilation
    Editorial
  • Nord, Natasa; Qvistgaard, Live Holmedal; Cao, Guangyu. (2016) Identifying key design parameters of the integrated energy system for a residential Zero Emission Building in Norway. Renewable Energy
    Academic article
  • Cao, Guangyu; Shichao, Liu; Boor, Brandon; Novoselac, Atila. (2015) Characterizing the dynamic interactions and exposure implications of a particle- laden cough jet with different room airflow regimes produced by low and high momentum jets. Aerosol and Air Quality Research
    Academic article
  • Nord, Natasa; Mathisen, Hans Martin; Cao, Guangyu. (2015) Energy cost models for air supported sports hall in cold climates considering energy efficiency. Renewable Energy
    Academic article
  • Cao, Guangyu; Nielsen, Peter V.; Jensen, Rasmus L.; Heiselberg, Per; Liu, Li; Heikkinen, Jorma. (2014) You have full text access to this content Protected zone ventilation and reduced personal exposure to airborne cross-infection. Indoor Air
    Academic article
  • Cao, Guangyu; Awbi, Hazim; Yao, Runming; Fan, Yunqing; Sirén, Kai; Kosonen, Risto. (2014) A review of the performance of different ventilation and airflow distribution systems in buildings. Building and Environment
    Academic literature review
  • Cao, Guangyu; Sirén, Kai; Kilpeläinen, Simo. (2014) Modelling and experimental study of performance of the protected occupied zone ventilation. Energy and Buildings
    Academic article
  • Cao, Guangyu; Kandzia, Claudia; Müller, Dirk; Heikkinen, Jorma; Kosonen, Risto; Ruponen, Mika. (2013) Experimental study of the effect of turbulence intensities on the maximum velocity decay of an attached plane jet. Energy and Buildings
    Academic article
  • Cao, Guangyu; Jokisalo, Juha; Feng, Guohui; Duanmu, Lin; Vuolle, Mika; Kurnitski, Jarek. (2011) Simulation of the heating performance of the Kang system in one Chinese detached house using biomass. Energy and Buildings
    Academic article
  • Cao, Guangyu; Ruponen, Mika; Paavilainen, Risto; Kurnitski, Jarek. (2011) Modelling and simulation of the near-wall velocity of a turbulent ceiling attached plane jet after its impingement with the corner. Building and Environment
    Academic article
  • Cao, Guangyu; Sivukari, Markku; Kurnitski, Jarek; Ruponen, Mika. (2010) PIV measurement of the attached plane jet velocity field at a high turbulence intensity level in a room. International Journal of Heat and Fluid Flow
    Academic article

Books

  • Cao, Guangyu; Holøs, Sverre Bjørn; Kim, Moon-Keun; Schild, Peter G.. (2021) Healthy Buildings 2021 – Europe Proceedings of the 17th International Healthy Buildings Conference 21-23 June 2021. SINTEF akademisk forlag SINTEF akademisk forlag
    Academic anthology/Conference proceedings
  • Schild, Peter G.; Holøs, Sverre Bjørn; Cao, Guangyu. (2021) Healthy Buildings Europe 2021: Book of abstracts. 17th International Conference, 21st-23rd June 2021, Online/Oslo. OsloMet - storbyuniversitetet OsloMet - storbyuniversitetet
    Academic anthology/Conference proceedings

Part of book/report

  • Chaulagain, Aayam; Mathisen, Hans Martin; Alam, Azimil Gani; Bartonova, Alena; Fredriksen, Mirjam; Høiskar, Britt Ann Kåstad. (2024) Evaluation of the indoor environment and perceived IEQ : a case study in Norwegian primary schools.
    Academic chapter/article/Conference paper
  • Aganovic, Amar; Bi, Yang; Cao, Guangyu; Kurnitski, Jarek; Wargocki, Pawel. (2022) Modeling the impact of indoor relative humidity on the airborne transmission of several respiratory viruses risk using a modified Wells-Riley model.
    Academic chapter/article/Conference paper
  • Ulvestad, Anita; Cao, Guangyu; Gustavsen, Kai; Vogt, Matthias; Rismyhr, Tore; Yang, Zhirong. (2021) Analysis of the effect of indoor environment on pupils’ health in one Norwegian school during COVID-19 pandemic.
    Academic chapter/article/Conference paper
  • Bi, Yang; Heggebø, Frida Josefine; Harsem, Trond Thorgeir; Mathisen, Hans Martin; Aganovic, Amar; Cao, Guangyu. (2021) Experimental Study on the Surgical Microenvironment in an Operating Room with Mixing Ventilation under Positive and Negative Pressure.
    Academic chapter/article/Conference paper
  • Heggebø, Frida Josefine; Bi, Yang; Harsem, Trond Thorgeir; Mathisen, Hans Martin; Cao, Guangyu. (2021) Experimental study on the thermal plume from a surgeon in an operating room with mixing ventilation during COVID-19 pandemic.
    Academic chapter/article/Conference paper
  • Kuivjõgi, Helena; Cao, Guangyu. (2021) Thermal Comfort Level of Patients and Surgical Staff in Operating Rooms at Nordic Hospital.
    Academic chapter/article/Conference paper
  • Hamon, Mathieu Pierre; Cao, Guangyu; Skreiberg, Øyvind; Georges, Laurent; Seljeskog, Morten; Khalil, Roger Antoine. (2019) Assessment of the Effects of Using Wood Stoves on Indoor Air Quality in Two Types of Norwegian Houses.
    Academic chapter/article/Conference paper
  • Søgnen, Odin; Mathisen, Hans Martin; Alonso, Maria Justo; Cao, Guangyu. (2016) Indoor Air Quality in a Zero Emission Building.
    Academic chapter/article/Conference paper
  • Cao, Guangyu; Georges, Laurent; Skreiberg, Øyvind; Seljeskog, Morten. (2016) An experimental study on how a wood stove affects the indoor air quality when used as the main source of heating in two representative Norwegian dwellings, one modern and one old.
    Academic chapter/article/Conference paper
  • Polak, Joanna; Cao, Guangyu; Georges, Laurent; Skreiberg, Øyvind. (2016) Experimental study of the airflow distribution inside and between two zones with temperature differences with an air curtain system.
    Academic chapter/article/Conference paper
  • Georges, Laurent; Cao, Guangyu; Mathisen, Hans Martin. (2016) Further Investigation of the Convective Heat Transfer between Rooms through Open Doorways.
    Academic chapter/article/Conference paper
  • Solberg, Karoline Veum; Cao, Guangyu; Alonso, Maria Justo; Burud, Jens Petter. (2016) A Field Study of the Indoor Climate in an Energy Efficient Building in Norway.
    Academic chapter/article/Conference paper

Teaching

Courses

  • TEP4530 - Energy and Indoor Environment, Specialization Project
  • TEP4235 - Energy Management in Buildings
  • TEP4245 - HVAC Engineering
  • EP8300 - Natural Convection Flows in Buildings
  • TEP4910 - Energy and Indoor Environment, Master's Thesis
  • TEP4315 - Indoor Environment
  • TEP4535 - Thermal Energy and Indoor Environment, Specialization Course

Outreach

2024

  • Academic lecture
    Alam, Azimil Gani; Cao, Guangyu; Mathisen, Hans Martin; Rosti, Behnam; Bartonova, Alena; Fredriksen, Mirjam. (2024) Field investigation of perceived IEQ : study case in Norwegian secondary school with DCV. RoomVent 2024 , Stockholm 2024-04-22 - 2024-04-25

2023

  • Academic lecture
    Cao, Guangyu. (2023) Perceived and measured indoor environment in Norwegian schools. TAPAS seminar Cambridge University 2023-10-16 - 2023-10-16
  • Academic lecture
    Cao, Guangyu. (2023) Sustainable indoor environment and ventilation solutions in operating rooms – challenges and future opportunities. The 11th International Conference on Sustainable Development in the Building and Environment 2023-08-14 - 2023-08-18
  • Poster
    Bi, Yang; Lundøy, Runar; Fecer, Tomas; Stenstad, Liv-Inger; Edvardsen, Sara; Harsem, Thorgeir. (2023) The influence of instrument table position on CFU level in the operating room with laminar airflow. Healthy Building 2023 Jul. 16-19, 2023 , Tianjin, China 2023-07-16 - 2023-07-19
  • Academic lecture
    Cao, Guangyu. (2023) Ventilasjon i operasjonsstue. NemiTek VVS Dagene 2023 2023-10-25 - 2023-10-25
  • Academic lecture
    Cao, Guangyu. (2023) Workshop of SuDBE 2023 Asia: Occupant targeted ventilation for sustainable buildings - Protected occupied zone ventilation. The 11th International Conference on Sustainable Development in the Building and Environment 2023-08-14 - 2023-08-18
  • Academic lecture
    Cao, Guangyu. (2023) Workshop Occupant targeted ventilation for reduction of airborne transmission - Protected occupied zone ventilation. Workshop Occupant targeted ventilation for reduction of airborne transmission 2023-07-16 - 2023-07-19
  • Academic lecture
    Cao, Guangyu. (2023) Indoor environment and ventilation performance in operating rooms at St. Olavs hospital. Healthy Building 2023 Jul. 16-19, 2023 2023-07-16 - 2023-07-19
  • Poster
    Alam, Azimil Gani; Singh, Nardeep; Mathisen, Hans Martin; Bartonova, Alena; Fredriksen, Mirjam; Høiskar, Britt Ann Kåstad. (2023) Field measurements of indoor air in one Norwegian School. 11th International Conference on Sustainable Development in Building and Environment (SuDBE) , Espoo 2023-08-14 - 2023-08-18
  • Academic lecture
    Cao, Guangyu. (2023) Ventilation, thermal comfort and indoor air quality in operating rooms – challenges and opportunities. IEA EBC Annex on Smart Materials, October 2, 2023, DTU, Denmark 2023-10-02 - 2023-10-02

2022

  • Academic lecture
    Cao, Guangyu. (2022) Ventilation against airborne transmission of infectious diseases in post COVID pandemic. 2022 Silk Road International Symposium on the Cooperation and Integration of Industry, Education, Research and Application of Green Development of Cities 2022-10-29 - 2022-10-31
  • Academic lecture
    Cao, Guangyu. (2022) Ventilation for operating rooms in hospitals. Ventilation 2022: 13th International Industrial Ventilation Conference for Contaminant Control , Toronto 2022-06-22 - 2022-06-24
  • Academic lecture
    Cao, Guangyu. (2022) Ventilation against airborne transmission of infectious diseases in post COVID pandemic. The 16th ROOMVENT Conference (ROOMVENT 2022) , Xi’an 2022-09-16 - 2023-07-16
  • Academic lecture
    Cao, Guangyu. (2022) Protected occupied zone ventilation for infection control and prevention. Ventilation 2022: 13th International Industrial Ventilation Conference for Contaminant Control , Toronto 2022-06-22 - 2022-06-24
  • Academic lecture
    Cao, Guangyu. (2022) Protected occupied zone ventilation. The 16th ROOMVENT Conference (ROOMVENT 2022) , Xi’an 2022-09-16 - 2023-07-16
  • Poster
    Cao, Guangyu; Bi, Yang; Fecer, Tomas; Morgenstierne, Marina. (2022) Indoor environment of operating room. Researchers' Night 2022-09-30 - 2022-09-30
  • Academic lecture
    Cao, Guangyu. (2022) Investigation of the influence of relative humidity on thermal comfort and CFU levels in operating rooms at St. Olavs hospital Norway. An international webinar: Humidification in Scandinavian hospitals, February 17, 2022 from 3:00 PM to 5:00 PM 2022-02-17 - 2022-02-17
  • Academic lecture
    Cao, Guangyu. (2022) IAQ in healthcare facilities: Laminar airflow ventilation and mixing ventilation, which is better for operating rooms in hospitals?. Indoor Air 2022 the 17th International Conference on Indoor Air Quality and Climate 2022-06-12 - 2022-06-16
  • Academic lecture
    Cao, Guangyu. (2022) Micro-environment air distribution with individually controlled room systems. CLIMA 2022 HVAC World Congress 2022-05-22 - 2022-05-25
  • Academic lecture
    Cao, Guangyu. (2022) Current work on European Standardization for Ventilation in Hospitals Operating Rooms (CEN TC 156 WG18 ). Indoor Air 2022 the 17th International Conference on Indoor Air Quality and Climate 2022-06-12 - 2022-06-16
  • Academic lecture
    Cao, Guangyu. (2022) Ventilation, indoor air quality and thermal comfort in operating rooms. CLIMA 2022 HVAC World Congress , Rotterdam 2022-05-22 - 2022-05-25
  • Academic lecture
    Cao, Guangyu. (2022) Protected occupied zone ventilation for infection control and prevention. Indoor Air 2022 the 17th International Conference on Indoor Air Quality and Climate 2022-06-12 - 2022-06-16

2021

  • Academic lecture
    Cao, Guangyu. (2021) Can we achieve desired indoor environment for surgical staff and patients in operating rooms?. Sustainable Development in the Building and Environment 2021-11-04 - 2021-11-06
  • Academic lecture
    Cao, Guangyu. (2021) Airflow distribution and surgical microenvironment control in operating room / Symposium 320: Towards Zero Infections in Health Institutions. Healthy Building 2021 2021-06-21 - 2021-06-21
  • Academic lecture
    Cao, Guangyu. (2021) Protected occupied zone ventilation/Workshop: REHVA Guidebook on occupant-targeted ventilation. Healthy Building 2021/Workshop: REHVA Guidebook on occupant-targeted ventilation 2021-06-21 - 2021-06-23

2020

  • Academic lecture
    Cao, Guangyu. (2020) Protected occupied zone ventilation reducing personal exposure to airborne pollutant. the 7th Conference of the Sustainable Solutions for Energy and Environment (EENVIRO 2020) 2020-10-21 - 2020-10-23
  • Academic lecture
    Cao, Guangyu. (2020) Room airflow distribution and mass transfer within surgical incision microenvironment in operating rooms. Indoor air conference 2020 2020-11-01 - 2020-11-05
  • Academic lecture
    Cao, Guangyu. (2020) Field investigation of thermal comfort level of patients and surgical staff in operating rooms at St. Olavs hospital. Operating room of the future seminar 2020-01-30 - 2020-01-31

2019

  • Lecture
    Cao, Guangyu. (2019) Institutt for energi- og prosessteknikk (EPT) NTNU - «en premissleverandør og en innovasjonsressurs» og samarbeid med St. Olavs hospital. Fremtidens operasjonsstue 2019-01-31 - 2019-02-01
  • Poster
    Kuivjõgi, Helena; Cao, Guangyu; Bogdan, Anna; Thalfeldt, Martin; Pedersen, Christoffer; Zhang, Yixian. (2019) Field investigation of thermal comfort level of patients and surgical staff in operating rooms at St. Olavs hospital. ISES-ISIAQ joint conference “The built, natural, and social environments: impacts on exposures, health and well-being” , Kaunas 2019-08-18 - 2019-08-22
  • Poster
    Nilssen, Anders Mostrøm; Aganovic, Amar; Cao, Guangyu; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2019) Laminar airflow ventilation and mixing ventilation, which is better for operating rooms in Norwegian hospitals?. ICPIC International conference on prevention and infection control 2019 , Geneva 2019-09-10 - 2019-09-13

2018

  • Academic lecture
    Hamon, Mathieu; Cao, Guangyu; Skreiberg, Øyvind; Georges, Laurent; Seljeskog, Morten; Khalil, Roger Antoine. (2018) Assessment of the effects of using wood stoves on indoor air quality in two types of Norwegian houses. Cold Climate HVAC 2018 , Kiruna, Sweden 2018-03-12 - 2018-03-15
  • Academic lecture
    Cao, Guangyu. (2018) Advanced airflow distribution methods for protection of occupants from exposure to indoor pollution. Workshop at Roomvent conference 2018-06-02 - 2018-06-05
  • Academic lecture
    Cao, Guangyu. (2018) Field measurements of the effect of surgical lights on airflow distribution in an operating room. Workshop at Roomvent conference 2018-06-02 - 2018-06-05
  • Academic lecture
    Cao, Guangyu; Storås, Madeleine C. A.; Aganovic, Amar; Stenstad, Liv-Inger; Skogås, Jan Gunnar. (2018) Experimental measurements of thermal plumes from a patient in an operating room with laminar airflow at St. Olavs Hospital. Finnish indoor climate conference 2018-03-15 - 2018-03-15
  • Academic lecture
    Cao, Guangyu. (2018) The effect of the thermal obstructions on the velocity and temperature field in an operating room with laminar airflow. The 15th Conference of the International Society of Indoor Air Quality & Climate ( ISIAQ) 2018-07-22 - 2018-07-27
  • Academic lecture
    Cao, Guangyu. (2018) Field measurements of the airflow distribution in close proximity to a patient in an operating room. Roomventilation Conference 2018 2018-06-02 - 2018-06-05

2017

  • Academic lecture
    Steffensen, Marie; Aganovic, Amar; Cao, Guangyu. (2017) Experimental study of the airflow distribution close to the human body with a downward plane jet. Healthy Buildings 2017 Europe 2017-07-02 - 2017-07-05
  • Academic lecture
    Cao, Guangyu; Aganovic, Amar; Stenstad, Liv-Inger; Skogås, Jan Gunnar; Mathisen, Hans Martin. (2017) Experimental study of the effect of operation lamps on downward airflow distribution in an operating theatre in St. Olavs Hospital in Norway. Healthy Buildings 2017 Europe 2017-07-02 - 2017-07-05
  • Academic lecture
    Cao, Guangyu; Nielsen, Peter V.; Melikov, Arsen; Kosonen, Risto. (2017) Advanced airflow distribution methods for reducing exposure of indoor pollution. Healthy Buildings 2017 Europe 2017-07-02 - 2017-07-05
  • Academic lecture
    Aganovic, Amar; Hamon, Mathieu; Kolarik, Jakub; Cao, Guangyu. (2017) Indoor air quality in mechanically ventilated residential dwellings/low-rise buildings: A review/analysis of existing information. The 38th AIVC conference "Ventilating healthy low-energy buildings" 2017-09-13 - 2017-09-14
  • Academic lecture
    Cao, Guangyu. (2017) Protected zone ventilation reducing personal exposure to indoor pollution. the 10th International Symposium on Heating, Ventilation and Air Conditioning – ISHVAC 2017 , Jinan 2017-10-19 - 2017-10-22
  • Academic lecture
    Cao, Guangyu. (2017) Experimental study of the effect of operating lamps on downward airflow distribution in an operating theatre at St. Olavs Hospital in Norway. Finnish Indoor Climate Seminar 2017-03-15 - 2017-03-15

2016

  • Poster
    Cao, Guangyu; Georges, Laurent; Skreiberg, Øyvind; Seljeskog, Morten. (2016) An experimental study on how a wood stove affects the indoor air quality when used as the main source of heating in two representative Norwegian dwellings, one modern and one old. Indoor Air 2016 , Ghent, Belgium 2016-07-03 - 2016-07-08
  • Academic lecture
    Polak, Joanna; Cao, Guangyu; Georges, Laurent; Skreiberg, Øyvind. (2016) Experimental study of the airflow distribution inside and between two zones with temperature differences with an air curtain system. CLIMA 2016 , Ålborg, Denmark 2016-05-22 - 2016-05-25

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