Experimental Study of an Air Conditioning-Heat Pump System for Electric Vehicles
Experimental Study of an Air Conditioning-Heat Pump System for Electric Vehicles
- New search for: Feng, Lili
- New search for: Hrnjak, Predrag
- New search for: Feng, Lili
- New search for: Hrnjak, Predrag
This paper presents the experimentally obtained performance characteristics of an air conditioning-heat pump system that uses heat exchangers from a commercially available Nissan Leaf EV. It was found that refrigerant charge needed for cooling operation was larger than that for heating function with the test setup. The effects of: a). indoor air flow rate, b). outdoor air flow rate, and c). compressor speed on heating capacity and energy efficiency were explored and presented. Appropriate opening size of expansion valve that controlled subcooling for better energy efficiency was discussed and results were presented. Expansion valve opening size also strongly affected charge migration. Warm-up tests at different ambient conditions showed the necessity of a secondary heater to be reserved for very low ambient temperature.
Document information
Experimental Study of an Air Conditioning-Heat Pump System for Electric Vehicles
Sae Technical Papers
SAE 2016 World Congress and Exhibition ; 2016
2016-04-05
Conference paper
English
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