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首页> 外文期刊>Advances in Meteorology >Human Thermal Comfort and Heat Stress in an Outdoor Urban Arid Environment: A Case Study
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Human Thermal Comfort and Heat Stress in an Outdoor Urban Arid Environment: A Case Study

机译：城市户外干旱环境下的人的热舒适性和热应激：一个案例研究

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摘要

To protect humans from heat stress risks, thermal comfort and heat stress potential were evaluated under arid environment, which had never been made for such climate.The thermal indices THI, WBGT, PET, and UTCI were used to evaluate thermal comfort and heat stress. Ray Man software model was used to estimate the PET, and the UTCI calculator was used for UTCI. Dry and wet bulb temperatures (T_d, T_w), natural wet bulb temperature (T_(nw)), and globe temperature (T_g) were measured in a summer day to be used in the calculation. The results showed the following. (i) The thermal sensation and heat stress levels can be evaluated by either the PET or UTCI scales, and both are valid for extremely high temperature in the arid environment. (ii) In the comfort zone, around 75% of individuals would be satisfied with the surrounding environment and feel comfortable during the whole day. (iii) Persons are exposed to strong heat stress and would feel uncomfortable most of the daytime in summer. (iv)Heat fatigue is expected with prolonged exposure to sun light and activity. (v) During the daytime, humans should schedule their activities according to the highest permissible values of the WBGT to avoid thermal shock.
机译：为了保护人类免受热应激的风险，在干旱环境下评估了热舒适性和潜在的热应激潜力，而在这种气候条件下却从未如此。热指数THI，WBGT，PET和UTCI用于评估热舒适性和热应激。使用Ray Man软件模型估算PET，将UTCI计算器用于UTCI。在夏季测量干球温度和湿球温度（T_d，T_w），自然湿球温度（T_（nw））和地球温度（T_g），以用于计算。结果显示如下。 （i）可以通过PET或UTCI量表来评估热感和热应力水平，并且两者都适用于干旱环境中的极高温度。 （ii）在舒适区，大约75％的人会对周围的环境感到满意，并在一整天内感到舒适。 （iii）人们暴露于强烈的热应激之下，夏季的大部分时间里都会感到不适。 （iv）长时间暴露在阳光下和活动下会导致热疲劳。 （v）在白天，人类应根据WBGT的最高允许值安排活动，以避免热冲击。

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