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| Research and Development of HG-45b Environmental Control Equipment for WideTemperature Range |
| Received:October 17, 2012 Revised:March 01, 2013 |
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| DOI： |
| KeyWord:environment-control equipment wide-temperature range non-azeotropic refrigerant evaporator |
| Author | Institution |
| TAO An-fa |
Hefei University of Technology，Hefei，China |
| WANG Tie-jun |
Hefei University of Technology，Hefei，China |
| CHEN Zhi-wen |
Hefei Swan Refrigeration Technology Co.，Ltd.，Hefei，China |
| JIANG Bin |
Hefei University of Technology，Hefei，China |
| ZHANG Zhou-pin |
Hefei Swan Refrigeration Technology Co.，Ltd.，Hefei，China |
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| Abstract: |
| Effects of flow and heat transfer characteristics of medium and high temperature mixed-refrigerant on system performance were analyzed combing with the application experience of HLD-45b according to the requirement of man-machine environment control of wide-temperature range of transporting vehicle. It was concluded that evaporator structure optimization and enhancement of indoor side heat transfer capacity were the key points to improve the performance of air conditioner. HG-45b air conditioner was developed which used HLD-45b outdoor unit and wall-mounted style of indoor unit, to meet the practical applications requirements. Heat transfer area and air volume were both increased while changing the evaporation duct structure and the thermal expansion valve was also optimized. The test data showed that cooling capacity and EER of HG-45b are10% and 14.5% more than that of HLD-45b respectively while its input power is5% less; the system performance is stable while the exhaust temperature and pressure of compressor are in the safe range, and the optimized goal is achieved. |
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