开发和验证已修改的预测热应变模型,用于在热湿地下环境中的各种代谢速率
Xingming Wang1, Yijiang Wang1, Ziyuan Wang1
1State Key Laboratory of Intelligent Construction and Healthy Operation & Maintenance of Deep Underground Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
Journal of thermal biology
|February 9, 2025
概括
一个新的修改预测热应变 (mPHS) 模型改善了深矿的热应变预测. 这种模型在炎热和潮湿的地下环境中为工人安全提供了更高的准确性.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 环境生理学环境生理学
- 人体工程学就是人体工程学.
背景情况:
- 深地下采矿环境带来越来越多的热量和湿度挑战.
- 准确评估工人的热应激对于这些条件下的安全至关重要.
研究的目的:
- 为热湿地下环境提出和验证修改后预测热应变 (mPHS) 模型.
- 为矿工提供关于最大允许暴露时间 (MAET) 的指导.
主要方法:
- 修改了预测热应变 (PHS) 模型,对空气速度和相对湿度进行了校正.
- 验证了mPHS模型对各种代谢速率的平均皮肤温度,汗流量和核心温度的预测性能.
- 在168种不同的环境条件下计算MAET.
主要成果:
- 与原始PHS模型相比,mPHS模型显示出更好的预测性能 (60-320 W/m2),显著减少了皮肤和核心温度的预测差异.
- 预测的平均皮肤温度可接受性在各种热负荷下大幅增加.
- 空气速度对MAET的影响比热环境中的相对湿度更大.
结论:
- 该mPHS模型为预测深地下矿山的热生理反应提供了更高的准确性.
- 结果为优化工人安全和管理在具有挑战性的地下条件下的热应激提供了宝贵的见解.
- 空气速度和湿度的调整可以显著延长安全暴露时间.
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