技术中心

【英文篇名】 Heat transfer between residential units and value analysis of area-shared percentage 【作者中文名】 张志刚; 【作者英文名】 By Zhang Zhigang ★Tianjin Institute of Urban Construction; China; 【作者单位】 天津城市建设学院; 【文献出处】 暖通空调, Hv 热计量; 户间传热; 面积分摊百分数; 【英文关键词】 central heating system; heat metering; heat transfer between residential units; area-shared percentage; 【摘要】 户间传热是集中供暖热计量中的一个技术难题。目前我国采取的解决办法是将系统总供热量中的一部分按各户建筑面积进行分摊 ,这部分热量占系统总供热量的百分数称为面积分摊百分数。对面积分摊百分数的影响因素进行了计算分析和灵敏度分析 ,认为户型、室内平均温度、换气次数对面积分摊百分数的影响较大 ,较为合理的数值范围是 3 0 %～ 45 %。 【英文摘要】 The heat transfer between residential units is a difficult technical problem in heat metering of central heating systems. The solution now used in China is to allocate a proportion of the total heat based on the floor area of each house unit. This proportion is called area-shared percentage. Analyses its influencing factors. Considers that house layout, indoor mean temperature and air changes have stronger impacts on the area-shared percentage. A recommended range of the percentage is 30% to 45%.