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The Refrigeration Technology Laboratory is equipped with several rigs and test facilities for doing research within liquefied gas technology and refrigeration and heat pumps using CO2 as refrigerant.
Liquefied gas technology
- High accuracy calorimeter to measure enthalpy of complex gas mixtures at low temp.
- Special test rigs rig to measure heat transfer and pressure drop in evaporating and condensing gas mixtures in gas liquefaction plants
- Laboratory prototype plant to investigate new patented process for small scale liquefaction of natural gas - 2000 kg/hrs
- Prototype plant to study new process for production of liquid hydrogen
- Own developed Large Scale Hot-Plate Apparatus (area 2 x 3 m) to study the thermal behaviour of insulation systems designed for liquefied natural gas
Refrigeration and heat pumps with CO2 as refrigerant
- Laboratory prototype plants to test out solutions and equipment for heat pump water heaters and heat pump/air-conditioning plants for cars.
- Test rigs for measuring heat transfer efficiency and pressure drop of CO2 during evaporation, condensation and heat transfer in the critical phase, both ordinary tubes and micro channels
- Test rigs for measuring thermal efficiency of evaporators and gas coolers based on CO2
- Test rigs for measuring capacity and efficiency of CO2 compressors
The measurements from the laboratory have formed the scientific base for our own developed:
- Thermodynamic packages for complex gas mixtures at low temperatures
- Process simulator CryoPro for thermal design of gas liquefaction processes
- Thermodynamic property library for CO2 as a working fluid, especially in the critical area
- Advanced computer model HXSIM to simulate the performance of evaporators, condensers and gas coolers
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LNG production facility
Testing facility for air conditioning of cars
Heat pump water heater |
