Improving thermal comfort of high-temperature environment of heading face through dehumidification

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In order to improve the thermal environment of high-temperature heading face,moisture content of supply air is reduced by dehumidification, and the relative humidity of environment air of the heading face is also decreased. First, according to the coefficient of performance of dehumidifier, the capacity of dehumidification was calculated. Second, in the engineering example of the heading face, quantitative changes of WBGT (Wet Bulb Globe Temperature) were compared between with dehumidification and without dehumidification. Based on WBGT standards, the thermal comfort of high-temperature environment of heading face was evaluated between with dehumidification and without handling. Reducing the relative humidity of airflow through dehumidification, the thermal comfort of a high-temperature environment of heading face can improve greatly. Even if dry bulb temperature of airflow is not decreased, the thermal comfort of heading face environment is also improved to some extent.
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