摘要
针对建筑运行期生活热水系统年碳排放量计算过程中,计算模型适用范围只包含全日集中热水系统及其变量取值范围导致计算结果差别较大的问题,增加了定时集中热水系统碳排放量计算模型,采用Sobol方法对计算模型进行敏感性分析。分别对全日和定时集中热水系统进行了案例计算分析。案例计算表明:全日制集中热水系统年碳排放量最大和最小值之比为1.74,敏感性较大的变量为生活热水系统热源平均效率、用水计算单位数和热水用水定额;定时制集中热水系统年碳排放量最大和最小值之比为2.29,敏感性较大的变量为生活热水系统热源平均效率和卫生器具热水的小时用水定额。
In the calculation of the annual carbon emission of domestic hot water system during the operation period of a building,the calculation model is only applicable to the whole-day centralized hot water system and the range of the values of its internal variables results in a large difference in calculating the annual carbon emission.To solve this problem,the calculation model of carbon emission from fixed-time hot water system is added,and the sensitivity of the model is analyzed by Sobol method.The whole-day and fixed-time hot water system are analyzed by case calculation.The results show that the ratio of maximum and minimum annual carbon emission of whole-day hot water system is 1.74,and the most sensitive variables are the average efficiency of heat source,the unit number of water consumption and the quota of hot water consumption The ratio of maximum and minimum annual carbon emission of fixed-time hot water system is 2.29.The most sensitive variables are the average efficiency of heat source and the hourly hot water consumption quota of sanitary ware.
作者
虞介泽
邵煜
雍小龙
Yu Jieze;Shao Yu;Yong Xiaolong(Hailiang Co.,Ltd.,Hangzhou 310051,China;College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310012,China;The Architectural Design&Research Institute of Zhejiang University Co.,Ltd.,Hangzhou 310012,China)
出处
《山西建筑》
2022年第20期120-122,共3页
Shanxi Architecture
基金
国家自然科学基金面上项目“基于多源信息融合的大型供水管网水力模型实时校核算法研究”(52070165)。
