用于减少热应力的相变冷却服装:实验评估和预测建模
Shengwei Wang1, Tian Liu1, Xiaohong Gui1
1School of Emergency Management & Safety Engineering, China University of Mining and Technology (Beijing), Beijing, China.
Ergonomics
|January 6, 2026
概括
这种新的相变冷却服装 (PCCG) 有效地减少了工作人员在炎热环境中的热应激. 它显著降低体温并提高热舒适度,提供了实质性的生理益处.
科学领域:
- 职业健康 职业健康 职业健康
- 热生理学 热生理学
- 可穿戴技术可穿戴技术
背景情况:
- 在热潮湿的环境中,直线工人面临着严重的热压力,这会影响他们的健康和安全.
- 现有的冷却解决方案可能无法为苛刻的职业任务提供足够的持续时间或有效性.
- 减轻热应激对于维持工人的工作效率和预防与热有关的疾病至关重要.
研究的目的:
- 实验评估一种新型相变冷却服 (PCCG) 的有效性,以减轻热应激.
- 在受控的热条件下,评估佩戴PCCG的参与者的生理和感知反应.
- 开发和验证用于预测与PCCG相关的热舒适度的机器学习模型.
主要方法:
- 在气候室 (38°C,75%RH) 中进行的受控实验室研究,有15名参与者.
- 参与者在穿着PCCG时以5公里/小时的速度行走在跑步机上.
- 测量包括皮肤温度,核心温度,汗水量和主观的热舒适度/感觉投票.
- 开发了一个机器学习模型 (BP-RFE-SVM-PSO) 来预测热舒适度.
主要成果:
- 该PCCG提供了长达116分钟的冷却,显著降低了平均皮肤温度 (2.6°C) 和核心温度 (0.7°C).
- 汗水量从0.83公斤减少到0.55公斤,热应激指数从严重改善到轻度.
- 主观的热舒适度和感觉显著改善,没有寒冷的不适.
- 机器学习模型在预测热舒适度方面取得了95.6%的准确性.
结论:
- 新型相变冷却服 (PCCG) 有效地缓解了热湿环境中工人的热压力.
- PCCG提供了显著的生理益处,包括降低体温和流汗,以及改善的热舒适度.
- 这些发现支持使用PCCG作为一种可行的解决方案,以提高高温职业环境中的工人安全和福祉.
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