Evaluation of Protective Ensemble Thermal Characteristics Through Sweating Hot Plate, Sweating Thermal Manikin, and Human Tests

热假人 热的 职业暴露 热板 环境科学 工程类 法律工程学 材料科学 保温 医学 机械工程 复合材料 医疗急救 物理 气象学 图层(电子)
作者
Jung-Hyun Kim,Jeffery Powell,Raymond J. Roberge,Angie Shepherd,Aitor Coca
出处
期刊:Journal of Occupational and Environmental Hygiene [Taylor & Francis]
卷期号:11 (4): 259-267 被引量:8
标识
DOI:10.1080/15459624.2013.858820
摘要

The purpose of this study was to evaluate the predictive capability of fabric Total Heat Loss (THL) values on thermal stress that Personal Protective Equipment (PPE) ensemble wearers may encounter while performing work. A series of three tests, consisting of the Sweating Hot Plate (SHP) test on two sample fabrics and the Sweating Thermal Manikin (STM) and human performance tests on two single-layer encapsulating ensembles (fabric/ensemble A = low THL and B = high THL), was conducted to compare THL values between SHP and STM methods along with human thermophysiological responses to wearing the ensembles. In human testing, ten male subjects performed a treadmill exercise at 4.8 km and 3% incline for 60 min in two environmental conditions (mild = 22°C, 50% relative humidity (RH) and hot/humid = 35°C, 65% RH). The thermal and evaporative resistances were significantly higher on a fabric level as measured in the SHP test than on the ensemble level as measured in the STM test. Consequently the THL values were also significantly different for both fabric types (SHP vs. STM: 191.3 vs. 81.5 W/m(2) in fabric/ensemble A, and 909.3 vs. 149.9 W/m(2) in fabric/ensemble B (p < 0.001). Body temperature and heart rate response between ensembles A and B were consistently different in both environmental conditions (p < 0.001), which is attributed to significantly higher sweat evaporation in ensemble B than in A (p < 0.05), despite a greater sweat production in ensemble A (p < 0.001) in both environmental conditions. Further, elevation of microclimate temperature (p < 0.001) and humidity (p < 0.01) was significantly greater in ensemble A than in B. It was concluded that: (1) SHP test determined THL values are significantly different from the actual THL potential of the PPE ensemble tested on STM, (2) physiological benefits from wearing a more breathable PPE ensemble may not be feasible with incremental THL values (SHP test) less than approximately 150-200 W·m(2), and (3) the effects of thermal environments on a level of heat stress in PPE ensemble wearers are greater than ensemble thermal characteristics.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
天天快乐应助文明8采纳,获得10
刚刚
梦XING发布了新的文献求助10
1秒前
Rondab应助ttt采纳,获得10
2秒前
化学完成签到,获得积分10
2秒前
失眠语梦发布了新的文献求助10
2秒前
wangbin743发布了新的文献求助10
3秒前
快乐柴柴完成签到,获得积分20
3秒前
彭于晏应助幼汁汁鬼鬼采纳,获得30
3秒前
啊蒙发布了新的文献求助10
4秒前
Orange应助Erislastem采纳,获得10
4秒前
4秒前
上官若男应助liyuqi61148采纳,获得30
5秒前
领导范儿应助风清扬采纳,获得10
5秒前
Z可发布了新的文献求助10
5秒前
Singularity应助高高的洋葱采纳,获得10
6秒前
6秒前
6秒前
在水一方应助mhy采纳,获得10
7秒前
8秒前
musejie应助课呢采纳,获得10
8秒前
黄晓荷完成签到,获得积分10
9秒前
9秒前
SciGPT应助落卿然采纳,获得10
10秒前
10秒前
失眠语梦完成签到,获得积分10
10秒前
化学发布了新的文献求助10
10秒前
HELAOBAN发布了新的文献求助10
10秒前
10秒前
10秒前
znn发布了新的文献求助10
11秒前
gg发布了新的文献求助10
11秒前
11秒前
13秒前
13秒前
碧蓝贞发布了新的文献求助10
13秒前
orixero应助wangbin743采纳,获得10
13秒前
13秒前
文明8发布了新的文献求助10
14秒前
Awojiuzheyang发布了新的文献求助10
14秒前
呜呜完成签到,获得积分10
14秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Effective Learning and Mental Wellbeing 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3974844
求助须知:如何正确求助?哪些是违规求助? 3519270
关于积分的说明 11197844
捐赠科研通 3255496
什么是DOI,文献DOI怎么找? 1797791
邀请新用户注册赠送积分活动 877187
科研通“疑难数据库(出版商)”最低求助积分说明 806202