Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation
Special vehicles play a critical role in accomplishing ground-based missions. However, unevenly distributed high temperatures within the cabin environment significantly impact the thermal comfort and work efficiency of personnel. This paper investigates the thermal management of special vehicles by...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X2401709X |
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| _version_ | 1850281829837307904 |
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| author | Miaocheng Weng Yu Zhang Fang Liu Aiyang Liu Hongyu Zhang |
| author_facet | Miaocheng Weng Yu Zhang Fang Liu Aiyang Liu Hongyu Zhang |
| author_sort | Miaocheng Weng |
| collection | DOAJ |
| description | Special vehicles play a critical role in accomplishing ground-based missions. However, unevenly distributed high temperatures within the cabin environment significantly impact the thermal comfort and work efficiency of personnel. This paper investigates the thermal management of special vehicles by proposing various airflow organization schemes achieved through the strategic placement of air vents. Experiments and computational simulations were conducted, tailored to the specific operational scenarios of these vehicles. To objectively assess the influence of return air vent configuration on the thermal comfort and work performance of cabin personnel, a weighted Predicted Mean Vote (PMV) index was incorporated into the analysis, leveraging established human thermal sensation models. Integrating the results of the cabin thermal environment simulations with the PMV evaluations, the study identifies the most effective air distribution scheme, one that prioritizes the work efficiency of the crew. The findings indicate that eight evenly distributed air supply outlets positioned above the cabin and two air return outlets positioned under the driver's seat, optimizes the airflow patterns, velocity fields, temperature distribution, and ultimately the weighted PMV within the cabin. This configuration ensures that the thermal environment falls largely within the acceptable range for sustaining crew work efficiency. |
| format | Article |
| id | doaj-art-ac6448c9815b47b681d423e38f5ae280 |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-ac6448c9815b47b681d423e38f5ae2802025-08-20T01:48:09ZengElsevierCase Studies in Thermal Engineering2214-157X2025-01-016510567810.1016/j.csite.2024.105678Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensationMiaocheng Weng0Yu Zhang1Fang Liu2Aiyang Liu3Hongyu Zhang4School of Civil Engineering, Chongqing University, Chongqing, 400045, PR China; Key Laboratory of New Technology for Construction of Cities in Mountain Area of Ministry of Education, Chongqing, 400045, PR China; Corresponding author. School of Civil Engineering, Chongqing University, Chongqing, 400045, PR China.School of Civil Engineering, Chongqing University, Chongqing, 400045, PR ChinaSchool of Civil Engineering, Chongqing University, Chongqing, 400045, PR China; Key Laboratory of New Technology for Construction of Cities in Mountain Area of Ministry of Education, Chongqing, 400045, PR ChinaSchool of Civil Engineering, Chongqing University, Chongqing, 400045, PR ChinaSchool of Civil Engineering, Chongqing University, Chongqing, 400045, PR ChinaSpecial vehicles play a critical role in accomplishing ground-based missions. However, unevenly distributed high temperatures within the cabin environment significantly impact the thermal comfort and work efficiency of personnel. This paper investigates the thermal management of special vehicles by proposing various airflow organization schemes achieved through the strategic placement of air vents. Experiments and computational simulations were conducted, tailored to the specific operational scenarios of these vehicles. To objectively assess the influence of return air vent configuration on the thermal comfort and work performance of cabin personnel, a weighted Predicted Mean Vote (PMV) index was incorporated into the analysis, leveraging established human thermal sensation models. Integrating the results of the cabin thermal environment simulations with the PMV evaluations, the study identifies the most effective air distribution scheme, one that prioritizes the work efficiency of the crew. The findings indicate that eight evenly distributed air supply outlets positioned above the cabin and two air return outlets positioned under the driver's seat, optimizes the airflow patterns, velocity fields, temperature distribution, and ultimately the weighted PMV within the cabin. This configuration ensures that the thermal environment falls largely within the acceptable range for sustaining crew work efficiency.http://www.sciencedirect.com/science/article/pii/S2214157X2401709XSpecial vehicleAirflow organizationWork efficiencyWeighted PMV |
| spellingShingle | Miaocheng Weng Yu Zhang Fang Liu Aiyang Liu Hongyu Zhang Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation Case Studies in Thermal Engineering Special vehicle Airflow organization Work efficiency Weighted PMV |
| title | Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation |
| title_full | Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation |
| title_fullStr | Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation |
| title_full_unstemmed | Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation |
| title_short | Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation |
| title_sort | optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation |
| topic | Special vehicle Airflow organization Work efficiency Weighted PMV |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X2401709X |
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