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Research on thermal transfer performance of airtight chemical protective clothing under composite air gap factors
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Yueying Yao1, 2, Xiaoyong Liu2, 3, Yayun Li2, 4, Xuefan Wang2, 3, Zhenyu Zhang1, 2
Fire Science and Technology | 2026, 45(5) : 72 - 78
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Fire Science and Technology | 2026, 45(5): 72-78
• Study of fire equipment •
Research on thermal transfer performance of airtight chemical protective clothing under composite air gap factors
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Yueying Yao1, 2, Xiaoyong Liu2, 3, Yayun Li2, 4, Xuefan Wang2, 3, Zhenyu Zhang1, 2
Affiliations
  • 1School of Safety Science and Engineering, Anhui University of Science and Technology, Huainan Anhui 232000, China
  • 2Anhui Province Key Laboratory of Human Safety, Hefei Anhui 230601, China
  • 3Hefei Institute for Public Safety Research, Tsinghua University, Hefei Anhui 230601, China
  • 4School of Safety Science, Tsinghua University, Beijing 100084, China
Published: 2026-05-15 doi: 10.20168/j.1009-0029.2026.05.0072.07
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This study focuses on addressing thermal comfort challenges associated with the hermetic construction of chemical protective clothing. This study employed a thermal manikin experimental platform to investigate the relationship between air gap thickness and manikin surface temperature under multifactorial conditions by systematically measuring temperature variations across different air gap thicknesses, ambient temperatures, and activity intensities, thereby analyzing the impact of air gap thickness on microclimate heat transfer. The results demonstrate that when the air gap thickness reduced from 55 mm to 10 mm, the temperature rise amplitude of the manikin surface increased, indicating that increasing the air gap thickness significantly reduces the manikin's surface temperature. The manikin's surface temperature increased by 0.89 ℃ at 65 W/m² and 1.54 ℃ at 110 W/m² thermal loads, revealing a positive correlation between temperature rise amplitude and activity intensity. The temperature changes of the manikin corresponding to ambient temperatures of 32, 25, 15, 10 ℃ are 1.59, 1.54, 0.42, 0.12 ℃, respectively. The decrease in the thickness of the air layer results in a significant increase in the temperature rise of the manikin as the ambient temperature increases.

airtight chemical protective clothing  /  heat transfer  /  thermal manikin  /  air gap  /  ambient temperature  /  exercise intensity
姚月盈, 刘小勇, 李亚运, 汪雪繁, 张震渝. 空气层复合因素下气密型化学防护服热传递性能研究. 消防科学与技术, 2026 , 45 (5) : 72 -78 . DOI: 10.20168/j.1009-0029.2026.05.0072.07
Yueying Yao, Xiaoyong Liu, Yayun Li, Xuefan Wang, Zhenyu Zhang. Research on thermal transfer performance of airtight chemical protective clothing under composite air gap factors[J]. Fire Science and Technology, 2026 , 45 (5) : 72 -78 . DOI: 10.20168/j.1009-0029.2026.05.0072.07
Appendix
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Year 2026 volume 45 Issue 5
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Article Info
doi: 10.20168/j.1009-0029.2026.05.0072.07
  • Receive Date：2025-06-23
  • Online Date：2026-10-22
  • Published：2026-05-15
Article Data
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History
  • Received：2025-06-23
  • Revised：2025-08-07
Affiliations
    1School of Safety Science and Engineering, Anhui University of Science and Technology, Huainan Anhui 232000, China
    2Anhui Province Key Laboratory of Human Safety, Hefei Anhui 230601, China
    3Hefei Institute for Public Safety Research, Tsinghua University, Hefei Anhui 230601, China
    4School of Safety Science, Tsinghua University, Beijing 100084, China
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表12种不同金属材料的力学参数
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Number of
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Number of
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Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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