热应激,热舒适和控制策略在温暖潮湿的工作场所
Zahra Moradpour1, Mohammad Javad Jafari2, Somayeh Farhang Dehghan2
1Department of Occupational Health Engineering, Environmental Health Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
International journal of biometeorology
|October 25, 2024
概括
一个局部通风系统 (LVS) 通过降低湿度和湿气温度,有效地减少了斯卡尔德大厅的热应力. 这提高了热舒适度,减少了70%以上的不满.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 环境工程 环境工程
- 工业卫生 工业卫生
背景情况:
- 楼大厅经常经历高水分含量,导致热应激和工人的不适.
- 在温暖和潮湿的环境中评估热舒适性需要适当的指数和有效的缓解策略.
研究的目的:
- 设计和实施一个局部通风系统 (LVS),以减少Scalder大厅中的湿度.
- 在LVS实施之前和之后评估热舒适度和热应力.
- 引入一个合适的指数来评估温暖和潮湿的工作场所.
主要方法:
- LVS的设计遵循了ACGIH标准 (VS-30-01).
- 使用Humidex,不适指数 (DI),热指数 (HI),湿球球体温度 (WBGT) 和预测平均投票 (PMV) 指数来评估热舒适度和热应激.
- 对主观反进行了比较,与预测平均投票预测不满意者百分比 (PMV-PPD) 指数进行了比较.
主要成果:
- LVS使相对湿度 (RH) 降低了47%,湿温度 (tnw) 降低了7°C.
- 工人的感知从"热和非常RH热"转变为"温暖和热".
- 工人的不满情绪下降了70%以上.
结论:
- 实施LVS通过降低相对湿度,有效地降低了周围湿气温度.
- 不适指数 (DI) 与在温暖潮湿的环境中主观的热舒适度评估有很强的相关性.
- 可以使用DI作为可靠的指标来评估这些工作场所的热条件.
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