Influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditioner
This paper employs CFD software to establish a mathematical model of a full-vehicle environmental wind tunnel, and couples it with the Berkeley thermal comfort evaluation model to assess human thermal comfort. The study investigates the impact of varying solar radiation intensities, outdoor temperat...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025022662 |
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| author | Yingchao Zhang Ruizhuo Zhou Guohua Wang Jincheng Xu Zhe Zhang |
| author_facet | Yingchao Zhang Ruizhuo Zhou Guohua Wang Jincheng Xu Zhe Zhang |
| author_sort | Yingchao Zhang |
| collection | DOAJ |
| description | This paper employs CFD software to establish a mathematical model of a full-vehicle environmental wind tunnel, and couples it with the Berkeley thermal comfort evaluation model to assess human thermal comfort. The study investigates the impact of varying solar radiation intensities, outdoor temperatures, and vehicle speeds on the total load of the air conditioning system and human thermal comfort. It is found that solar radiation intensity has a significant effect on thermal comfort, while vehicle speed has a relatively minor impact on thermal comfort but a substantial influence on thermal load. Subsequently, by taking the supply air velocity as the independent variable and combining it with different external environmental conditions, the overall thermal comfort index of the occupants is considered as the research object. A regression equation is fitted to describe the relationship between them, and recommended supply air velocity ranges are solved, leading to an optimization scheme. The optimization results for nine different environmental conditions are as follows: the driver's overall thermal comfort has improved by an average of 0.9, and the load on the air conditioning system has decreased by an average of 8.3 %, achieving the goal of collaborative optimization of thermal comfort and energy consumption. |
| format | Article |
| id | doaj-art-e47bdc889de34a9290aad1482bcdd94f |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-e47bdc889de34a9290aad1482bcdd94f2025-08-20T03:51:08ZengElsevierResults in Engineering2590-12302025-09-012710619410.1016/j.rineng.2025.106194Influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditionerYingchao Zhang0Ruizhuo Zhou1Guohua Wang2Jincheng Xu3Zhe Zhang4National Key Laboratory of Automotive Chassis Integration and Bionics, ChinaNational Key Laboratory of Automotive Chassis Integration and Bionics, ChinaCorresponding author.; National Key Laboratory of Automotive Chassis Integration and Bionics, ChinaNational Key Laboratory of Automotive Chassis Integration and Bionics, ChinaNational Key Laboratory of Automotive Chassis Integration and Bionics, ChinaThis paper employs CFD software to establish a mathematical model of a full-vehicle environmental wind tunnel, and couples it with the Berkeley thermal comfort evaluation model to assess human thermal comfort. The study investigates the impact of varying solar radiation intensities, outdoor temperatures, and vehicle speeds on the total load of the air conditioning system and human thermal comfort. It is found that solar radiation intensity has a significant effect on thermal comfort, while vehicle speed has a relatively minor impact on thermal comfort but a substantial influence on thermal load. Subsequently, by taking the supply air velocity as the independent variable and combining it with different external environmental conditions, the overall thermal comfort index of the occupants is considered as the research object. A regression equation is fitted to describe the relationship between them, and recommended supply air velocity ranges are solved, leading to an optimization scheme. The optimization results for nine different environmental conditions are as follows: the driver's overall thermal comfort has improved by an average of 0.9, and the load on the air conditioning system has decreased by an average of 8.3 %, achieving the goal of collaborative optimization of thermal comfort and energy consumption.http://www.sciencedirect.com/science/article/pii/S2590123025022662Passenger cabinThermal comfortThermal loadExternal environmentOptimization |
| spellingShingle | Yingchao Zhang Ruizhuo Zhou Guohua Wang Jincheng Xu Zhe Zhang Influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditioner Results in Engineering Passenger cabin Thermal comfort Thermal load External environment Optimization |
| title | Influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditioner |
| title_full | Influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditioner |
| title_fullStr | Influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditioner |
| title_full_unstemmed | Influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditioner |
| title_short | Influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditioner |
| title_sort | influence of external environment on thermal environment of cabin and optimization of air supply strategy of air conditioner |
| topic | Passenger cabin Thermal comfort Thermal load External environment Optimization |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025022662 |
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