SET Proceedings 2978-4387 Caravel Press 10.65582/set.2010.018 2010.018 TEWI Evaluation of the Enhanced R134a Mobile Air Conditioning System ZhaoYu zhaoyu203@sjtu.edu.cn QiZhaogang ChenJiangping Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, China 24082010 9 978-1-995850-04-7 1 8 24 August 2010 © 2010 Copyright WSSET 2010

To consider the global warming impact of the mobile air conditioning (MAC) system comprehensively, the concept of total equivalent warming impact (TEWI) was proposed these years. In this study, the enhanced R134a MAC system with micro-channel evaporator and sub-cooled parallel flow condenser, was tested on psychrometric calorimeter test bench and compared to the baseline system in different working conditions. The TEWI analysis method was used to evaluate both systems’ environmental effect potential, which was done in three typical cities in China. It was found that the enhanced system could achieve larger COP and lower TEWI. The TEWI of the enhanced system could reduce 10.3% compared to the baseline system at most. That means a car with enhanced MAC system could reduce the emission of CO2 for 313.2kg during its life span.

 Mobile air conditioning TEWI COP CO2 reduction 24 to 27 August 2010 9th International Conference on Sustainable Energy Technologies SET2010 9 Shanghai, China