Characteristic Evaluation on the Cooling Performance of an Electrical Air Conditioning System Using R744 for a Fuel Cell Electric Vehicle

doi:10.3390/en5051371

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Energies 2012, 5(5), 1371-1383; doi:10.3390/en5051371

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Characteristic Evaluation on the Cooling Performance of an Electrical Air Conditioning System Using R744 for a Fuel Cell Electric Vehicle

Moo-Yeon Lee* , Ho-Seong Lee and Hong-Phil Won

Korea Automotive Technology Institute, 74 Yongjung-Ri, Pungse-Myun, Dongnam-Gu, Chonan-Si, 330-012, Korea

* Author to whom correspondence should be addressed.

Received: 6 February 2012; in revised form: 4 April 2012 / Accepted: 8 May 2012 / Published: 11 May 2012

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Abstract: The objective of this study was to investigate the cooling performance characteristics of an electrical air conditioning system using R744 as an alternative of R-134a for a fuel cell electric vehicle. In order to analyze the cooling performance characteristics of the air conditioning system using R744 for a fuel cell electric vehicle, an electrical air conditioning system using R744 was developed and tested under various operating conditions according to both inlet air conditions of the gas cooler and evaporator and compressor speed. The cooling capacity and coefficient of performance (COP) forcooling of the tested air conditioning system were up to 6.4 kW and 2.5, respectively. In addition, the electrical air conditioning system with R744 using an inverter driven compressor showed better performance than the conventional air conditioning system with R-134a under the same operating conditions. The observed cooling performance of the developed electrical air conditioning system was found to be sufficient for cooling loads under various real driving conditions for a fuel cell electric vehicle.

Keywords: air conditioning; electrical compressor; COP; R744; fuel cell electric vehicle

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Cite This Article

MDPI and ACS Style

Lee, M.-Y.; Lee, H.-S.; Won, H.-P. Characteristic Evaluation on the Cooling Performance of an Electrical Air Conditioning System Using R744 for a Fuel Cell Electric Vehicle. Energies 2012, 5, 1371-1383.

AMA Style

Lee M-Y, Lee H-S, Won H-P. Characteristic Evaluation on the Cooling Performance of an Electrical Air Conditioning System Using R744 for a Fuel Cell Electric Vehicle. Energies. 2012; 5(5):1371-1383.

Chicago/Turabian Style

Lee, Moo-Yeon; Lee, Ho-Seong; Won, Hong-Phil. 2012. "Characteristic Evaluation on the Cooling Performance of an Electrical Air Conditioning System Using R744 for a Fuel Cell Electric Vehicle." Energies 5, no. 5: 1371-1383.

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