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通过引入集雨系数a、雨水储水系数b,提出了一种估算雨水回用系统雨水回用量的方法。以杭州市的降雨过程为例,对用水过程简化模拟并进行逐日水量平衡计算,建立起反映系数a、b与雨水回用量占用水量的比例R之间关系的函数图像,利用此函数图像可估算杭州及具有相似降雨过程的其他地区雨水回用系统的雨水回用量,并为雨水回用系统基本设计参数的确定和运行效率的评估提供了方法。
By introducing the rainwater harvesting coefficient (a) and the rainwater storage coefficient (b), a method of estimating rainwater reuse of rainwater reuse system was proposed. Taking the rainfall process in Hangzhou as an example, this paper simplifies the simulation of water use process and calculates the daily water balance, and establishes the function image that reflects the relationship between the coefficients a, b and the ratio R of water consumption of rainwater reuse. Hangzhou, and other areas with similar rainfall process rainwater reuse system of rainwater reuse, and for rainwater reuse system to determine the basic design parameters and operational efficiency assessment provides a way.