Publisher : The Korean Society of Mechanical Engineers
DOI : 10.3795/KSME-B.2016.40.2.085
Title & Authors
Characteristic of Cabin Temperature According to Thermal Load Condition of Heat Pump for Electric Vehicle Park, Ji Soo; Han, Jae Young; Kim, Sung-Soo; Yu, Sang Seok;
The Positive Temperature Coefficient (PTC) is used for cabin air heating of a battery electric vehicle, which is different from conventional vehicles. Since the PTC heater consumes a large quantity of power in a parasitic manner, many valuable studies have been reported in the field of alternative heat pumps. In this study, a model for an R134a heat pump taking into account the thermal environment of the cabin was developed for a MATLAB/SIMULINK(R) platform. Component and cabin models are validated with reference values. Results show that the heat pump is more competitive for parasitic power consumption over all ambient temperature conditions. Additionally, the method of waste heat recovery to overcome disadvantages when temperatures are below zero is applied to efficiently operate the heat pump.
Electric Vehicle;Heat Pump;Indoor Heat Exchanger;Outdoor Heat Exchanger;Electric Compressor;Expansion Valve;Cabin;
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