超高层建筑室内外热环境参数实测研究

Experimental Study on Indoor and Outdoor Thermal Environment Parameters of Super High-rise Buildings

室内外热环境参数是建筑热工与节能及暖通空调领域的重要计算参数。为考察高空室内外热环境参数的动态变化,对西北盆地城市中心区某超高层建筑的裙房平台、屋顶、底层房间和顶层房间进行了现场测试,获取了室外温度、相对湿度、风速、太阳辐射强度和室内温度、相对湿度的变化曲线。结果表明:裙房平台的平均温度比屋顶的平均温度高,屋顶相对湿度不但没有上升,反而下降;裙房平台和屋顶的黑球温度值随着太阳辐射变化而变化,屋顶黑球温度值较大;梯度风效应实测值远小于经验模型结果;底层房间温度以及相对湿度的变化较为平稳,而顶层房间恰恰相反,在暖通空调系统设计时需要区别对待。旨在为超高层建筑的舒适度及节能设计提供合理的数据支持。

Indoor and outdoor thermal environment parameters are important calculation parameters in the field of building thermal engineering,energy conservation and HVAC.In order to investigate the dynamic changes of indoor and outdoor thermal environment parameters at high altitude,the podium platform,roof,ground floor room and top floor room of a super high-rise building in the urban center of the Northwest Basin were tested on site,and the change curves of outdoor temperature,relative humidity,wind speed,solar radiation intensity and indoor temperature and relative humidity were obtained.The results show that the average temperature of podium platform is higher than that of the roof,and the relative humidity of the roof does not increase,but decreases;The black ball temperature of podium platform and roof changes with solar radiation,and the black ball temperature of roof is larger;The measured value of gradient wind effect is much smaller than that of empirical model;The temperature and relative humidity of the room on the ground floor are relatively stable,while the room on the top floor is on the contrary,which needs to be treated differently when designing the HVAC system.Reasonable data is provided for the comfort and energy saving design of super high-rise buildings.