An Innovative Design of Regional Air Conditioning to Increase Automobile Cabin Energy Efficiency

Cheng-Jung Yang, Tzu-Chun Yang, Po-Tuan Chen and K. David Huang
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Cheng-Jung Yang: Department of Mechanical Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
Tzu-Chun Yang: Department of Vehicle Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
Po-Tuan Chen: Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan
K. David Huang: Department of Vehicle Engineering, National Taipei University of Technology, Taipei 10608, Taiwan

Energies, 2019, vol. 12, issue 12, 1-16

Abstract: With the goal of increasing energy efficiency and passenger comfort in an automobile cabin, we developed a regional air-conditioning design to control cold air in specific regions, and an air management strategy that can keep air circulation when the car engine cuts out. According to computational simulations, an air velocity of 2 m/s was adopted, which could form an independent flow field space in the cabin with a temperature gap of 7 °C according to the user’s needs. The designed regional air-conditioning and circulation system could create independent flow field spaces with temperature differences. Inlet air volume demand was also reduced by 60% and blower power by 53 W. In addition, the cabin ventilation system led air exchange rate reached 89% per hour. In 20 min of exposure under sun, the system could lower the cabin temperature by 12.3 °C.

Keywords: energy saving; automobile cabin; regional air-conditioning; parking ventilation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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