Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (12): 125-130.doi: 10.13475/j.fzxb.20210400607

• Apparel Engineering • Previous Articles     Next Articles

Airflow sensitivity of local human skin and its influencing factors

ZHANG Zhaohua1,2, CHEN Zhirui1, LI Luyao1, XIAO Ping1,2(), PENG Haoran1, ZHANG Yuhan1   

  1. 1. College of Fashion and Design, Donghua University, Shanghai 200051, China
    2. Key Laboratory of Clothing Design and Technology, Ministry of Education, Donghua University, Shanghai 200051, China
  • Received:2021-04-06 Revised:2021-09-02 Online:2021-12-15 Published:2021-12-29
  • Contact: XIAO Ping E-mail:xiaoping@dhu.edu.cn

RichHTML

11

PDF (PC)

126

Abstract:

In order to explore the influencing factors of airflow sensitivity for different human body segments, this study evaluated the local skin temperature change rate of each body segment and the subjective airflow intensity feeling of the front chest, upper back, lower back, front thigh and back thigh under the airflow stimuli at temperatures of 5 ℃ lower than, equal to and 5 ℃ higher than skin temperature, and the Weber fraction was used to analyze the sensitivity difference of each body segment to the airflow. The results show that the stimulating air temperature has a significant effect on the airflow sensitivity of the human body. When the stimulating air temperature is equal to the local skin temperature, the skin airflow sensitivity is the lowest, indicating that the temperature sensor plays an important role in the skin airflow perception. The upper back and the front thigh are most sensitive to the warm airflow, whereas the lower back and the back thigh are most sensitive to the cold airflow, although no significant statistical differences were found between the various body segments.

Key words: skin temperature, airflow sensitivity, ventilation garment, thermal sensation, physiological effect, local air movement

CLC Number: 

  • TS941.16

Fig.1

Schematic diagram of air supplying system. (a) Front view; (b) Left view"

Fig.2

Physical map of airflow test site"

Fig.3

Data fitting results of airflow stimulation in Tsk -5 ℃ on chest"

Fig.4

Comparison of calculation results of different threshold"

Fig.5

Comparison of calculation results of Weber fraction"

Fig.6

Rate of skin temperature change in Tsk-5 ℃"

Fig.7

Rate of skin temperature change in Tsk"

Fig.8

Rate of skin temperature change in Tsk+5 ℃"

Fig.9

Correlation analysis of absolute value of skin temperature change and Weber fraction"

[1] 郭新梅, 袁修干. 影响气冷式个体热防护装备致冷力的因素分析[J]. 宇航学报, 2010, 31(1):276-281.
GUO Xinmei, YUAN Xiugan. Analysis of factors affecting the cooling force of air-cooled individual thermal protection equipment[J]. Journal of Astronautics, 2010, 31(1):276-281.
[2] LAMPRET Ž, KRESE G, BUTALA V, et al. Impact of airflow temperature fluctuations on the perception of draught[J]. Energy & Buildings, 2018, 179:112-120.
[3] 范晓伟, 吴金河, 李志强, 等. 高温环境下头部局部送风热舒适性模拟研究[J]. 建筑热能通风空调, 2018, 37(11):42-46.
FAN Xiaowei, WU Jinhe, LI Zhiqiang, et al. Thermal comfort simulation of head local air supply in high temperature environment[J]. Building Thermal Energy, Ventilation and Air Conditioning, 2018, 37(11):42-46.
[4] GLITZ K J, SEIBEL U, ROHDE U, et al. Reducing heat stress under thermal insulation in protective clothing: microclimate cooling by a 'physiological' method[J]. Ergonomics, 2015, 58(8):1461-1469.
doi: 10.1080/00140139.2015.1013574
[5] 赵蒙蒙. 可调温织物与服装吸热效应评价研究[D]. 上海: 东华大学, 2013:1-160.
ZHAO Mengmeng. Study on evaluation of heat absorption effect of adjustable temperature fabric and clothing[D]. Shanghai: Donghua University, 2013:1-160.
[6] LU Y, WEI F, LAI D, et al. A novel personal cooling system (PCS) incorporated with phase change mate-rials (PCMS) and ventilation fans[J]. Extreme Physiology & Medicine, 2015, 52(S1):137-146.
[7] FANGER P O, CHRISTENSEN N K. Perception of draught in ventilated spaces[J]. Ergonomics, 1986, 29(2):215-235.
doi: 10.1080/00140138608968261
[8] VERRILLO R T. Effect of contactor area on the vibrotactile threshold[J]. Journal of the Acoustical Society of America, 1963, 35:1962-1966.
doi: 10.1121/1.1918868
[9] WEINSTEIN S. Intensive and extensive aspects of tactile sensitivity as a function of body part, sex, and latera-lity[C]// First International Symposium on Skin Senses. Florida: Florida Staste University, 1968: 195-222.
[10] UGURSAL A, CULP C H. The effect of temperature, metabolic rate and dynamic localized airflow on thermal comfort[J]. Applied Energy, 2013, 111:64-73.
doi: 10.1016/j.apenergy.2013.04.014
[11] HOMMA L. Thermal sensation of local airflows with different temperatures and velocities: comparison between summer and winter[J]. ASHRAE Transactions, 2005, 111(1):123-131.
[12] 宋文馨. 活动量和气流运动对人体热舒适的影响[D]. 广州: 广东工业大学, 2019:79-81.
SONG Wenxin. Influence of activity and airflow on human thermal comfort[D]. Guangzhou: Guangdong University of Technology, 2019:79-81.
[13] 郭秀艳. 实验心理学[M]. 北京: 人民教育出版社, 2004:301-307.
GUO Xiuyan. Experimental psychology [M]. Beijing: People's Education Press, 2004:301-307.
[1] NIU Mengyu, PAN Shuwen, DAI Hongqin, LÜ Kaimin. Relationship between thermal-moist comfort of medical protective clothing and human fatigue [J]. Journal of Textile Research, 2021, 42(07): 144-150.
[2] ZHAO Jingde, DING Yiran, ZHANG Chunhong. Heat transfer modeling and experimental research of ventilation clothing in high-temperature outdoor environment [J]. Journal of Textile Research, 2021, 42(06): 153-159.
[3] ZHANG Zhaohua, LI Luyao, AN Ruiping. Thermal-wet comfort evaluation of head and torso ventilation of pipe garment [J]. Journal of Textile Research, 2020, 41(08): 88-94.
[4] HUANG Qianqian, LI Jun. Research progress on mechanism of human thermal sensation under ambient temperature step change [J]. Journal of Textile Research, 2020, 41(04): 188-194.
[5] ZHENG Qing, WANG Hongfu, KE Ying, LI Shuang. Design and evaluation of cooling clothing by phase change materials for miners [J]. Journal of Textile Research, 2020, 41(03): 124-129.
[6] . Body srface tperature canges and sbjective termal snsation asessment bfore and ater eercise [J]. JOURNAL OF TEXTILE RESEARCH, 2018, 39(04): 116-122.
[7] . Influence of clothing adopting ventilation system on thermal comfort [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(10): 94-97.
[8] . Application status of thermoregulatory mode in clothing comfort evaluation with thermal manikin [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(07): 164-172.
[9] WANG Yun-Yi, ZHAO Meng-Meng. Objective evaluation on thermal adjusting effect of PCM cooling vest under high temperature and strong radiation [J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(5): 101-105.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] . [J]. JOURNAL OF TEXTILE RESEARCH, 2003, 24(06): 33 -34 .
[2] . [J]. JOURNAL OF TEXTILE RESEARCH, 2003, 24(06): 35 -36 .
[3] . [J]. JOURNAL OF TEXTILE RESEARCH, 2003, 24(06): 107 .
[4] . [J]. JOURNAL OF TEXTILE RESEARCH, 2003, 24(06): 109 -620 .
[5] . [J]. JOURNAL OF TEXTILE RESEARCH, 2004, 25(02): 103 -104 .
[6] . [J]. JOURNAL OF TEXTILE RESEARCH, 2004, 25(02): 105 -107 .
[7] . [J]. JOURNAL OF TEXTILE RESEARCH, 2004, 25(02): 108 -110 .
[8] . [J]. JOURNAL OF TEXTILE RESEARCH, 2004, 25(02): 111 -113 .
[9] . [J]. JOURNAL OF TEXTILE RESEARCH, 2004, 25(02): 116 -118 .
[10] . [J]. JOURNAL OF TEXTILE RESEARCH, 2004, 25(02): 119 -120 .
京ICP备14006648号
Copyright 2021 © Editorial office of Journal of Textile Research
Supported by Beijing Magtech Co.Ltd