Publikasjoner og ansvarsområder
Hydrocarbon heat pumps with combined process cooling and heating at 115°C
High temperature industrial heat pumps utilising natural working fluids
There is a large demand for heat typically in the temperature range 100-200⁰C in different industries. This is today often covered by fossil fuel burning or direct use of electricity. Heat pumps has to a lesser extent been utilized due to higher investment cost and limited availability of systems fo...
Performance of high temperature heat pump for simultaneous and efficient production of ice water and process heat
Turbo-compressors for R-718: Experimental evaluation of a two-stage steam compression cycle
Water (R-718) is a safe and energy-efficient refrigerant. Mechanical vapour recompression (MVR), an open-loop heat pump using R718, can significantly reduce the energy consumption for steam-heated processes like drying, pasteurization, evaporation or distillation. However, the existing compression t...
Hydrocarbon Compressor Technology for High temperature heat Pumps
The development of a hydrocarbon high temperature heat pump for waste heat recovery
Waste heat is an abundant resource that if recovered with a heat pump would increase energy efficiency in industrial processes. This will provide improvements in heat utilization and reduce the environmental impact of greenhouse gas emissions from the combustion of fossil fuel. A hydrocarbon high te...
Experimental investigation of a prototype R-600 compressor for high temperature heat pump
This research experimentally investigates a prototype compressor in a high temperature heat pump for industrial waste heat recovery from 50 °C to heat delivery at 115 °C. Compressors are the limiting component in the development of high temperature heat pumps due to the high discharge pres...