建筑给排水中热水用水量计算方法的比较

A Comparis on between Calculation Methods for How Water Cons umption in Building Water Supply and Drainage

《建筑给水排水设计规范》中对建筑热水的计算给出了2个公式,但这2个公式的小时变化系数Kh在实际应用中不易确定。通过对该规范中有关数据进行整理,利用最小二乘法原理进行数据处理,得出了计算Kh值的拟合公式。

Two formulae are given in the Code for Design of Building Water Supply and Drainage for the calculation of building hot water.Nevertheless,the hourly variation factor,K h ,in the two formulae can be hardly determined in actual applications.By sorting out relevant data in the said code and processing the data using the method of least squares,a fit formula is obtained for the calculation of the value of K h .