Influence of Initial and Boundary Conditions on the Accuracy of the QUB Method to Determine the Overall Heat Loss Coefficient of a Building
作者: Naveed AhmadChristian GhiausThimothée Thiery
作者单位: 1INSA-Lyon, Université Claude Bernard Lyon 1, CETHIL, UMR5008, F-69621 Villeurbanne, France;
2Saint-Gobain Research, 39 quai Lucien Lefranc, CEDEX 93303 Aubervilliers, France;
刊名: Energies, 2020, Vol.13 (1)
来源数据库: Multidisciplinary Digital Publishing Institute
DOI: 10.3390/en13010284
关键词: Building performance measurementShort term test methodsOverall heat loss coefficientEnergy efficiency
原始语种摘要: The quick U-building (QUB) method is used to measure the overall heat loss coefficient of buildings during one to two nights by applying heating power and by measuring the indoor and the outdoor temperatures. In this paper, the numerical model of a real house, previously validated on experimental data, is used to conduct several numerical QUB experiments. The results show that, to some extent, the accuracy of QUB method depends on the boundary conditions (solar radiation), initial conditions (initial power and temperature distribution in the walls) and on the design of QUB experiment (heating power and duration). QUB method shows robustness to variation in the value of the overall heat loss coefficient for which the experiment was designed and in the variation of optimum power for the QUB...
全文获取路径: MDPI  (合作)

  • design 设计
  • efficiency 效率
  • proposed 建议的
  • applying 施加
  • measuring 测量
  • method 方法
  • coefficient 系数
  • variation 变异
  • about 大约
  • during 在的期间