基于渗风度时数的采暖渗风能耗计算及其影响因素分析
Calculation and analysis of heating energy consumption for air infiltration based on heating infiltration degree-hours
摘要：
引入渗风度时数的概念与方法，在探讨竖井温度分布的基础上，应用先期得到的室外干球温度简化分布模型，对建筑分楼层采暖渗风能耗进行计算，并对不同气候区代表性地点的相关能耗进行比较，同时分析外窗气密性等主要因素的影响，发现在同一建筑中单位缝隙的渗风量及能耗最大值并未出现在底层，在不同楼层的建筑中平均每层单位长度缝隙的渗风量及耗热量随楼增高近乎直线增加，建议不同地区的建筑应采用不同气密性等级的门窗。
Abstract：
Based on the grade distribution of shaft temperature and simplified probability distribution of outdoor dry-bulb temperature gained previously, introducing the concept and method of infiltration degree-hours, calculates the heating energy consumption for air infiltration by each building storey and compares the energy consumptions in typical place in various climate zones, as well as analyses the related influencing factors such as air tightness of exterior windows. The results show that the maximum air infiltration and energy consumption per unit length gap of the same building do not appear in the bottom storey, and the average storey air infiltration and energy consumption per unit length gap show approximately linear increasing with building height. Suggests that windows and doors of different air tightness levels should be adopted in buildings in different regions.
Keywords:infiltrationdegree-hour,airinfiltration,heatingenergyconsumption,airtightness,buildingfloornumber