Effect of urban microclimates on dynamic thermal characteristics of a vehicle cabin
The external climate consistently maintains thermal transfer with the vehicle cabin. The complexity and variability of the urban microclimate cause dynamic changes in the thermal characteristics of the cabin. Combining the differences in spatial structure and environmental characteristics of urban r...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23004689 |
| _version_ | 1797729937292001280 |
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| author | Fengchong Lan Haiwen Chen Jiqing Chen Weijian Li |
| author_facet | Fengchong Lan Haiwen Chen Jiqing Chen Weijian Li |
| author_sort | Fengchong Lan |
| collection | DOAJ |
| description | The external climate consistently maintains thermal transfer with the vehicle cabin. The complexity and variability of the urban microclimate cause dynamic changes in the thermal characteristics of the cabin. Combining the differences in spatial structure and environmental characteristics of urban roads, this study proposed a cabin thermal management method based on matching cooling schemes for different urban microclimates in road space, aiming to achieve thermal comfort and low energy consumption. Environmental load spectrum tests were conducted in three types of urban road spaces during the summer in southern China, including open roads, boulevards, and underground parking lots. The primary environmental loads experienced by the vehicle in service are solar radiation, high temperature, and high humidity. However, these loads vary significantly due to factors such as cloud cover, building and tree shading, and tree transpiration. Combined with the cabin thermal model, the study analyzed the effect of environmental differences in road scenes on the dynamic thermal characteristics of the vehicle cabin, and explored the variability of passengers’ cooling requirements. The results indicated that the HVAC air supply temperatures of 10.5°C, 15.8°C and 20.5°C should be respectively adopted on the open road, boulevard and in the underground parking lot. |
| first_indexed | 2024-03-12T11:37:47Z |
| format | Article |
| id | doaj.art-cd2c76bea6f24eb89169195bbb9cbc0a |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-12T11:37:47Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-cd2c76bea6f24eb89169195bbb9cbc0a2023-09-01T05:01:13ZengElsevierCase Studies in Thermal Engineering2214-157X2023-09-0149103162Effect of urban microclimates on dynamic thermal characteristics of a vehicle cabinFengchong Lan0Haiwen Chen1Jiqing Chen2Weijian Li3School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, 510641, China; Guangdong Key Laboratory of Automotive Engineering, Guangzhou, 510641, China; Corresponding author. School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, 510641, China.School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, 510641, China; Guangdong Key Laboratory of Automotive Engineering, Guangzhou, 510641, ChinaSchool of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, 510641, China; Guangdong Key Laboratory of Automotive Engineering, Guangzhou, 510641, ChinaSchool of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, 510641, China; Guangdong Key Laboratory of Automotive Engineering, Guangzhou, 510641, ChinaThe external climate consistently maintains thermal transfer with the vehicle cabin. The complexity and variability of the urban microclimate cause dynamic changes in the thermal characteristics of the cabin. Combining the differences in spatial structure and environmental characteristics of urban roads, this study proposed a cabin thermal management method based on matching cooling schemes for different urban microclimates in road space, aiming to achieve thermal comfort and low energy consumption. Environmental load spectrum tests were conducted in three types of urban road spaces during the summer in southern China, including open roads, boulevards, and underground parking lots. The primary environmental loads experienced by the vehicle in service are solar radiation, high temperature, and high humidity. However, these loads vary significantly due to factors such as cloud cover, building and tree shading, and tree transpiration. Combined with the cabin thermal model, the study analyzed the effect of environmental differences in road scenes on the dynamic thermal characteristics of the vehicle cabin, and explored the variability of passengers’ cooling requirements. The results indicated that the HVAC air supply temperatures of 10.5°C, 15.8°C and 20.5°C should be respectively adopted on the open road, boulevard and in the underground parking lot.http://www.sciencedirect.com/science/article/pii/S2214157X23004689Vehicle thermal environmentUrban microclimateThermal comfort of passengersTransient thermal modelThermal management in cabin |
| spellingShingle | Fengchong Lan Haiwen Chen Jiqing Chen Weijian Li Effect of urban microclimates on dynamic thermal characteristics of a vehicle cabin Case Studies in Thermal Engineering Vehicle thermal environment Urban microclimate Thermal comfort of passengers Transient thermal model Thermal management in cabin |
| title | Effect of urban microclimates on dynamic thermal characteristics of a vehicle cabin |
| title_full | Effect of urban microclimates on dynamic thermal characteristics of a vehicle cabin |
| title_fullStr | Effect of urban microclimates on dynamic thermal characteristics of a vehicle cabin |
| title_full_unstemmed | Effect of urban microclimates on dynamic thermal characteristics of a vehicle cabin |
| title_short | Effect of urban microclimates on dynamic thermal characteristics of a vehicle cabin |
| title_sort | effect of urban microclimates on dynamic thermal characteristics of a vehicle cabin |
| topic | Vehicle thermal environment Urban microclimate Thermal comfort of passengers Transient thermal model Thermal management in cabin |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23004689 |
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