顶层房间夏季室内热环境评价指标

Indexes for indoor thermal environment of top-floor rooms with asymmetrical radiant Field in Summer

通过对自然通风顶层房间夏季室内热环境的实测和分析,确认了这种热环境的两个主要特征.分析认为,评价这类不对称辐射热环境时,应同时考虑高温和房间内表面温度不对称的综合影响.为此,建议同时采用热应力指标HSI和辐射热通量QR作为这类环境的综合评价指标,并对实测房间运用这一指标进行了分析和讨论.

The main thermal features of top-floor rooms with natural ventilation are identified by investigating indoor environment in summer. The analysis shows that high temperature and asymmetric radiant field in such rooms must be considered comprehensively for evaluating indoor thermal environment. In order to characterize the environment, heatstress index, HSI and radiant heat flux reaching human head, Q(R) are introduced as thermal indexes for simultaneously reflecting the two features.The application of the indexes to a top-floor room is presented and analyzed.