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Effect of Open-Window Gaps on the Thermal Environment inside Vehicles Exposed to Solar Radiation

Author

Listed:
  • Xiaoxiao Ding

    (Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, China)

  • Weirong Zhang

    (Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, China)

  • Zhen Yang

    (Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, China)

  • Jiajun Wang

    (Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, China)

  • Lingtao Liu

    (Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, China)

  • Dalong Gao

    (Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, China)

  • Dongdong Guo

    (Beijing Municipal Vehicle Emissions Management Center, Beijing 100176, China
    School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China)

  • Jianyin Xiong

    (School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China)

Abstract

To avoid a sharp rise in temperature in the cabin of parked vehicles exposed to solar radiation, experienced drivers leave some windows partly open when the vehicle is parked in the sunlight to achieve cooling through natural ventilation. However, the effectiveness of this measure to reduce the temperature under different weather conditions has not been verified. To this end, this study investigates the effect of open windows on the thermal environment of a vehicle under different environmental conditions. A field measurement, in which two identical vehicles with and without window gaps were used, was carried out in Daxing District, Beijing. The measurements were conducted for 15 days under different window gaps and ambient conditions. The results revealed that open windows resulted in a maximum temperature reduction of 6.7 °C in cabin air temperature under high temperature and high solar radiation, while only 0.6 °C can be reduced under low temperature and low solar radiation. The results also showed that when window gaps effectively reduce the air temperature, lower air temperature can be obtained with larger open-window areas.

Suggested Citation

  • Xiaoxiao Ding & Weirong Zhang & Zhen Yang & Jiajun Wang & Lingtao Liu & Dalong Gao & Dongdong Guo & Jianyin Xiong, 2022. "Effect of Open-Window Gaps on the Thermal Environment inside Vehicles Exposed to Solar Radiation," Energies, MDPI, vol. 15(17), pages 1-18, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6411-:d:904751
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    References listed on IDEAS

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