Advances in Automobile Engineering
Open Access
ISSN: 2167-7670
+44 1300 500008
ISSN: 2167-7670
+44 1300 500008
Erkutay Tasdemirci and Murat Hosoz
Kocaeli University, Turkey
Posters & Accepted Abstracts: Adv Automob Eng
The use of electric vehicles has become popular due to their high energy efficiency and zero emission. However, comfort heating of passenger compartments in IC vehicles is performed by waste heat from IC engine, while electric vehicles (EV) employ electrical resistance for this aim due to having no waste heat source with sufficient capacity. Because providing heat from electrical resistance causes extra energy consumption, the use of air-source heat pumps for the comfort heating of EVs is getting importance to reduce total energy consumption in EVs. In this study, a bench-top automotive air conditioning system using HFC134a as refrigerant was set up and equipped with some auxiliary components to operate it as a heat pump. The system had instruments to measure refrigerant and air stream temperatures at critical points, refrigerant mass flow rate, refrigerant pressures, compressor speed and torque. The temperatures of the air streams entering the indoor and outdoor units was kept at two different values, namely 0�?°C and 10�?°C, and the compressor speed was changed between 800 to 2800 rpm with intervals of 400 rpm for each air stream temperature. The experimental data was acquired by a data aquisition system anddetermined that the automotive heat pump system provided sufficient heating capacity and conditioned air stream temperature at test conditions. It was observed that heating capacity and conditioned air stream temperature increased while COPh decreased on increasing the compressor speed.
Email: erkutaytasdemirci@gmail.com