Mulu Bayray Kahsay
About
I am a Mechanical Engineer teaching and researching in the field of renewable energy technologies and systems. I did my PhD (Dr. techn.) at Vienna University of Technology, Austria. I am currently a researcher at Department of Electric Energy, NTNU. Previously I have been Asociate Professor at Mekelle University, Ethiopia.
I am currently working on the research topic solar energy in Nordic climate conditions associated with Team Solar at NTNU.
Attached my brief CV.
Research
Current research topic:
Solar energy in Nordic climate: case study on PV systems integrated with thermal energy storage.
Research topics
Solar heating for industrial processes (SHIP)
Wind farm power performance assessment
Clean cooking with renewable energy technologies integrated with thermal energy storage
Publications
2025
-
Kahsay, Mulu Bayray;
Völler, Steve.
(2025)
Thermal energy storage for increasing self-consumption of grid connected photovoltaic systems: A case for Skjetlein High School, Norway.
Energy and Buildings
Academic article
2024
-
Enday, Petros Gebray;
Kahsay, Mulu Bayray;
Nyssen, Jan;
Van Ginderachter, Michiel;
Termonia, Piet;
Van Schaeybroeck, Bert.
(2024)
Validation of the wind climatology from the ALARO-0 model at different resolutions over Ethiopia.
Theoretical and Applied Climatology
Academic article
-
Tesfay, Asfafaw Haileselassie;
Tsegay, Kibreab;
Kahsay, Mulu Bayray;
Hailu, Mesele Hayelom;
Adaramola, Muyiwa S..
(2024)
Performance comparison of three prototype biomass stoves with traditional and Mirt stoves for baking Injera.
Energy, Sustainability and Society
Academic article
-
Abrha, Ashenafi Kebedom;
Teklehaymanot, Mebrahtu Kidanu;
Kahsay, Mulu Bayray;
Nydal, Ole Jørgen.
(2024)
Charging of an Air–Rock Bed Thermal Energy Storage under Natural and Forced Convection.
Energies
Academic article
-
Tesfay, Asfafaw Haileselassie;
Kahsay, Mulu Bayray;
Geleta, Abenezer Bekele.
(2024)
Improved Cook Stoves to Meet Sustainable Development Goal in Ethiopia.
Energies
Academic article
-
Hailu, Mesele Hayelom;
Kahsay, Mulu Bayray;
Tesfay, Asfafaw Haileselassie;
Nydal, Ole Jørgen.
(2024)
An Experimental Comparative Study of Large-Sized Direct Solar Fryers for Injera Baking Applications.
Energies
Academic article
-
Teshome, Abeba Debru;
Kahsay, Mulu Bayray;
Molinas Cabrera, Maria Marta.
(2024)
Assessment of power curve performance of wind turbines in Adama-II Wind Farm.
Energy Reports
Academic article
2023
-
Hiben, Yacob Gebreyohannes;
Kahsay, Mulu Bayray;
Lauwaert, Johan.
(2023)
Optimizing solar-assisted industrial heating and cooling system for cost-effective installation.
Applied Thermal Engineering
Academic article
-
Kahsay, Mulu Bayray;
Nydal, Ole Jørgen.
(2023)
Degradation of viscosity of vegetable oils employed for thermal energy storage due to oxidation in ambient temperature.
Journal of Energy Storage
Academic article
-
Kelele, Hailay Kiros;
Kahsay, Mulu Bayray;
Nielsen, Torbjørn Kristian.
(2023)
Dynamic Response Analysis of Wind Turbine Structure to Turbulent Wind Load: Comparative Assessment in Time and Frequency Domains.
Applied Mechanics
Academic article
Journal publications
-
Kahsay, Mulu Bayray;
Völler, Steve.
(2025)
Thermal energy storage for increasing self-consumption of grid connected photovoltaic systems: A case for Skjetlein High School, Norway.
Energy and Buildings
Academic article
-
Enday, Petros Gebray;
Kahsay, Mulu Bayray;
Nyssen, Jan;
Van Ginderachter, Michiel;
Termonia, Piet;
Van Schaeybroeck, Bert.
(2024)
Validation of the wind climatology from the ALARO-0 model at different resolutions over Ethiopia.
Theoretical and Applied Climatology
Academic article
-
Tesfay, Asfafaw Haileselassie;
Tsegay, Kibreab;
Kahsay, Mulu Bayray;
Hailu, Mesele Hayelom;
Adaramola, Muyiwa S..
(2024)
Performance comparison of three prototype biomass stoves with traditional and Mirt stoves for baking Injera.
Energy, Sustainability and Society
Academic article
-
Abrha, Ashenafi Kebedom;
Teklehaymanot, Mebrahtu Kidanu;
Kahsay, Mulu Bayray;
Nydal, Ole Jørgen.
(2024)
Charging of an Air–Rock Bed Thermal Energy Storage under Natural and Forced Convection.
Energies
Academic article
-
Tesfay, Asfafaw Haileselassie;
Kahsay, Mulu Bayray;
Geleta, Abenezer Bekele.
(2024)
Improved Cook Stoves to Meet Sustainable Development Goal in Ethiopia.
Energies
Academic article
-
Hailu, Mesele Hayelom;
Kahsay, Mulu Bayray;
Tesfay, Asfafaw Haileselassie;
Nydal, Ole Jørgen.
(2024)
An Experimental Comparative Study of Large-Sized Direct Solar Fryers for Injera Baking Applications.
Energies
Academic article
-
Teshome, Abeba Debru;
Kahsay, Mulu Bayray;
Molinas Cabrera, Maria Marta.
(2024)
Assessment of power curve performance of wind turbines in Adama-II Wind Farm.
Energy Reports
Academic article
-
Hiben, Yacob Gebreyohannes;
Kahsay, Mulu Bayray;
Lauwaert, Johan.
(2023)
Optimizing solar-assisted industrial heating and cooling system for cost-effective installation.
Applied Thermal Engineering
Academic article
-
Kahsay, Mulu Bayray;
Nydal, Ole Jørgen.
(2023)
Degradation of viscosity of vegetable oils employed for thermal energy storage due to oxidation in ambient temperature.
Journal of Energy Storage
Academic article
-
Kelele, Hailay Kiros;
Kahsay, Mulu Bayray;
Nielsen, Torbjørn Kristian.
(2023)
Dynamic Response Analysis of Wind Turbine Structure to Turbulent Wind Load: Comparative Assessment in Time and Frequency Domains.
Applied Mechanics
Academic article
Teaching
I am currently involved in the following course:
- ELDI 1001 Renewable Energy Informatics
I have taught the following ocurses at graduate level:
- Wind Energy
- Solar Energy (both Solar Thermal and Solar PV)
- Research Methods
- Energy and Environment
- Experimental Methods
Supervision
MSc supervision
- Technical-economic analysis of energy system options for schools and farms with renewable energy production (2024).
- Solar Water Heater with Temperature Control for 90°C Water Requirement: Designed for the Rural African Environment (2023).
- Wind power for cooking Small scale wind power to heat storage (2023).
PhD supervision
- Aerodynamic and Structural Analysis of Wind Turbine Blade: Mitigating Extreme Wind Loads and Applying Single-Blade Design Concept for Structural Integrity, Enhanced Performance and Cost Efficiency.
- Dynamic Modelling and Optimization of Solar Industrial Process Heat System for Economic Integration: A Case of MOHA Soft Drinks and Sheba Leather Industry in Tigray Region, Ethiopia.
- Wind Farm Performance, FACTs Performance and Short-Term Wind Power Forecasting. Case Study: Adama II Wind Farm.
- Experimental Investigation of a Concentrating Solar Fryer with Heat Storage (2015)
Outreach
Poster
Mulu Bayray Kahsay, Steve Völler. PV System with Thermal Energy Storage (TES) for Norwegian Off-grid Cabins (Hytte). The Norwegian Solar Cell Conference (NSCC) 2024, Son
Seminar Presentation
Tobias Aas, Sveinung Berg Olsen, Mulu Bayray Kahsay, Steve Völler. Analysis of Skjetlein High School Electric and Heating Systems. Team Solar Seminar, September 2, 2024.