城市综合体建筑人为排热及热湿气候动态预测

Dynamic prediction on building anthropogenic heat release and thermal climate in urban complex

为研究具备复合功能类型的城市综合体内建筑人为排热规律及室外大气动态热平衡情况,建立了针对多种建筑类型及用能形式并存的区域热气候动态预测模型,并以深圳市某实际城市综合体项目为研究对象进行分析.结果表明：典型计算日内,该城市综合体在全天大部分时间段里都存在建筑人为排热,其排热规律主要体现各类建筑空调制冷系统的使用特点;整个计算期间内,建筑人为全热排热量占区域内总全热排热量的比例最大,约为62.1%;城市综合体热岛强度日均值和整个计算期间峰值比单一城市功能区相应值高约0.1-0.45℃,建筑人为排热是城市综合体区域内独特热气候形成的主要影响因素.

To study the building anthropogenic heat emission law and outdoor atmospheric dynamic thermal balance in urban complex which has multiple functions,an urban complex thermal climate dynamic prediction model is developed and applied to an actual planning project in Shenzhen. The results show that the heat release from building happens in most of the time of a typical calculation day,and the heat release law follows the operation law of the corresponding type of air conditioning refrigeration system. During the whole calculation period,the building anthropogenic heat accounts for the largest proportion of the total heat released,which is about 62. 1%. The heat island intensity daily average value and maximum value in the whole calculating period of the urban complex area is 0. 1-0. 45 ℃ lager than that of the common urban area with a single building type. The above results suggest that the anthropogenic heat discharge from building is one of the main factors for the formation of hot and wet climate in this urban complex area.