Background and activities
- Refrigeration and heat pump technology in general.
- CO2 technology for various applications; supermarkets, industrial heat pumps, transport refrigeration.
- System design for refrigeration, air conditioning and heat pumps, (stationary and automotive).
- Compressor, Ejector and compact heat exchanger technology.
- Working fluids, with emphasis on natural working fluids, CO2 NH3 and hydrocarbons.
- Life Cycle Climate Performance of various energy systems.
Scientific, academic and artistic work
A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database
- (2018) Design and simulations of refrigerated sea water chillers with CO2 ejector pumps for marine applications in hot climates. Energy. vol. 161.
- (2018) Transcritical R744 refrigeration systems for supermarket applications: Current status and future perspectives. International journal of refrigeration. vol. 93.
- (2018) DUBLETT Energetic and environmental performance evaluation of AR744 multi-ejector enhanced parallel compression system in high ambient temperature locations. Science et technique du froid. vol. 2018-April.
- (2018) Crossing CO2 equator with the aid of multi-ejector concept: A comprehensive energy and environmental comparative study. Energy. vol. 164.
- (2018) DUBLETT - Direct CO2 ground condensers. Science et technique du froid. vol. 2018-June.
- (2018) Integrated CO2 solutions for supermarkets. Science et technique du froid. vol. 2018-June.
- (2018) Numerical investigation of heat transfer in a CO2 two-phase ejector. Energy. vol. 163.
- (2018) Performance mapping of the R744 ejectors for refrigeration and air conditioning supermarket application: A hybrid reduced-order model. Energy. vol. 153.
- (2018) Performance investigation of a multi-ejector R744 heat pump. Science et technique du froid. vol. 2018-June.
- (2018) Integrated energy concepts for high performance hotel buildings. Science et technique du froid. vol. 2018-June.
- (2017) Full-scale multi-ejector module for a carbon dioxide supermarket refrigeration system: Numerical study of performance evaluation. Energy Conversion and Management. vol. 138.
- (2017) Thermodynamic Performance Assessment of a CO2 Supermarket Refrigeration System with Auxiliary Compression Economization by using Advanced Exergy Analysis. International Journal of Thermodynamics. vol. 20 (4).
- (2017) Multi-ejector R744 booster refrigerating plant and air conditioning system integration – A theoretical evaluation of energy benefits for supermarket. International journal of refrigeration. vol. 75.
- (2017) State-of-the-art technologies for transcritical R744 refrigeration systems – a theoretical assessment of energy advantages for European food retail industry. Energy Procedia. vol. 123.
- (2017) System model derivation of the CO2 two-phase ejector based on the CFD-based reduced-order model. Energy. vol. 144.
- (2017) Modified homogeneous relaxation model for the r744 trans-critical flow in a two-phase ejector. International journal of refrigeration. vol. 85.
- (2017) A steady and quasi-steady state analysis on the CO2 hybrid ground-coupled heat pumping system. International journal of refrigeration. vol. 76.
- (2017) Annual energy performance of R744 and R410A heat pumping systems. Applied Thermal Engineering. vol. 117.
- (2017) Dynamic modelling of local low-temperature heating grids: A case study for Norway. Energy. vol. 139.
- (2017) HEM and HRM accuracy comparison for the simulation of CO2 expansion in two-phase ejectors for supermarket refrigeration systems. Applied Thermal Engineering. vol. 115.