Study on thermal and physiological responses during summer while moving between academic buildings under different walking conditions
During the hot summer season, students walking through corridors connecting academic buildings may experience brief periods of dynamic sunlight exposure, which could have some impact on their thermal sensation and physiological responses. However, there is limited research focusing on short outdoor...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25000693 |
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| author | Jiahao Yang Haiyan Li Zhaosong Fang Yongcai Li Fangqi Lu Tongye Guo Xiang Zhang Chang Lin Jun Lu |
| author_facet | Jiahao Yang Haiyan Li Zhaosong Fang Yongcai Li Fangqi Lu Tongye Guo Xiang Zhang Chang Lin Jun Lu |
| author_sort | Jiahao Yang |
| collection | DOAJ |
| description | During the hot summer season, students walking through corridors connecting academic buildings may experience brief periods of dynamic sunlight exposure, which could have some impact on their thermal sensation and physiological responses. However, there is limited research focusing on short outdoor walking between different buildings for individuals. Therefore, we conducted a field survey on a university campus in Guangzhou, China, collecting 1199 questionnaires along with corresponding thermal environment parameters and physiological indicators. Physiological Equivalent Temperature (PET) was employed to assess thermal comfort, and a comprehensive improvement model was developed by integrating both actual thermal comfort models and simulation-based prediction models. The findings are as follows: (1) Subjects exposed to short-term sunlight showed an average HR (heart rate) increase of 3.4 beats/min (0.8 m/s), 3.9 beats/min (1.2 m/s), and 4.2 beats/min (1.6 m/s) compared to non-exposed individuals; the maximum Tac (auditory canal temperature) difference was 0.15 °C, and the maximum differences in metabolic rate and heat storage were 14.8 W/m2 and 12.2 W/m2, respectively; (2) Walking speeds should be kept below 2.09 m/s (non-exposed) and 1.53 m/s (expose) to avoid heat risks; (3) There is a discrepancy between the simulated and actual thermal indices. These findings provide valuable insights for helping pedestrians mitigate heat risks and optimize outdoor spaces of buildings. |
| format | Article |
| id | doaj-art-464cd227f84942e2bf9f82c0c7fced8e |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-464cd227f84942e2bf9f82c0c7fced8e2025-02-02T05:27:32ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105809Study on thermal and physiological responses during summer while moving between academic buildings under different walking conditionsJiahao Yang0Haiyan Li1Zhaosong Fang2Yongcai Li3Fangqi Lu4Tongye Guo5Xiang Zhang6Chang Lin7Jun Lu8School of Civil Engineering, Chongqing University, Chongqing, ChinaGuangzhou Climate and Agrometeorology Center, Guangzhou, ChinaSchool of Civil Engineering, Guangzhou University, Guangzhou, ChinaSchool of Civil Engineering, Chongqing University, Chongqing, ChinaSchool of Civil Engineering, Chongqing University, Chongqing, ChinaSchool of Civil Engineering, Guangzhou University, Guangzhou, ChinaStrategic Landscape Planning and Management, School of Life Sciences, Weihenstephan, Technische Universität München, Emil-Ramann-Str. 6, Freising, 85354, GermanyInnovation School of Great Bay Area, Guangzhou Academy of Fine Arts, Guangzhou, China; Corresponding author.School of Civil Engineering, Chongqing University, Chongqing, China; Corresponding author.During the hot summer season, students walking through corridors connecting academic buildings may experience brief periods of dynamic sunlight exposure, which could have some impact on their thermal sensation and physiological responses. However, there is limited research focusing on short outdoor walking between different buildings for individuals. Therefore, we conducted a field survey on a university campus in Guangzhou, China, collecting 1199 questionnaires along with corresponding thermal environment parameters and physiological indicators. Physiological Equivalent Temperature (PET) was employed to assess thermal comfort, and a comprehensive improvement model was developed by integrating both actual thermal comfort models and simulation-based prediction models. The findings are as follows: (1) Subjects exposed to short-term sunlight showed an average HR (heart rate) increase of 3.4 beats/min (0.8 m/s), 3.9 beats/min (1.2 m/s), and 4.2 beats/min (1.6 m/s) compared to non-exposed individuals; the maximum Tac (auditory canal temperature) difference was 0.15 °C, and the maximum differences in metabolic rate and heat storage were 14.8 W/m2 and 12.2 W/m2, respectively; (2) Walking speeds should be kept below 2.09 m/s (non-exposed) and 1.53 m/s (expose) to avoid heat risks; (3) There is a discrepancy between the simulated and actual thermal indices. These findings provide valuable insights for helping pedestrians mitigate heat risks and optimize outdoor spaces of buildings.http://www.sciencedirect.com/science/article/pii/S2214157X25000693Outdoor thermal comfortPhysiological indicatorsThermal indexSunlight exposureWalking speed |
| spellingShingle | Jiahao Yang Haiyan Li Zhaosong Fang Yongcai Li Fangqi Lu Tongye Guo Xiang Zhang Chang Lin Jun Lu Study on thermal and physiological responses during summer while moving between academic buildings under different walking conditions Case Studies in Thermal Engineering Outdoor thermal comfort Physiological indicators Thermal index Sunlight exposure Walking speed |
| title | Study on thermal and physiological responses during summer while moving between academic buildings under different walking conditions |
| title_full | Study on thermal and physiological responses during summer while moving between academic buildings under different walking conditions |
| title_fullStr | Study on thermal and physiological responses during summer while moving between academic buildings under different walking conditions |
| title_full_unstemmed | Study on thermal and physiological responses during summer while moving between academic buildings under different walking conditions |
| title_short | Study on thermal and physiological responses during summer while moving between academic buildings under different walking conditions |
| title_sort | study on thermal and physiological responses during summer while moving between academic buildings under different walking conditions |
| topic | Outdoor thermal comfort Physiological indicators Thermal index Sunlight exposure Walking speed |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25000693 |
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