自然通风对庭院建筑开敞空间热环境影响的实测研究

Effect of Natural Ventilation on Thermal Environment in the Open Space of Enclosed Buildings

对典型庭院建筑开敞空间冬、夏季热环境分别进行了连续实测,分析了不同自然通风条件下,太阳辐射和气象条件对庭院内温度分布规律的影响.结果表明,自然通风对庭院热环境有重要影响,且该影响在不同太阳辐射和季节条件下效果不同.无论开窗或关窗,太阳辐射对庭院热压分布都有显著影响,庭院密闭性越好、太阳辐射越强,庭院内冬季空气过余温度就越高,但夏季无此特征.

The thermal environment in the open space of an enclosed building is monitored in winter and summer, respectively. Considering the influences of solar radiation and meteorological condition, air temperature distribution in the courtyard with natural ventilation is analyzed and discussed. The results show that natural ventilation has significant effects on thermal environment in the open space, and it varies with the changes of solar radiation and season. Whether the windows opened or not, solar radiation has an obvious impact on thermal pressure in the courtyard, the higher air-tightness and more solar radiation, the higher the excess air temperature of the courtyard in winter. However, there are no such features in summer.