|Table of Contents|

[1] Zhang Wei, Li Simin, Tang Fengbing,. Estimating runoff coefficient for quantity assessmentof roof rainwater harvesting system [J]. Journal of Southeast University (English Edition), 2014, 30 (2): 220-224. [doi:10.3969/j.issn.1003-7985.2014.02.015]
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Estimating runoff coefficient for quantity assessmentof roof rainwater harvesting system()
屋面雨水利用系统量化评估中径流系数的取值
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
30
Issue:
2014 2
Page:
220-224
Research Field:
Other Disciplines
Publishing date:
2014-06-20

Info

Title:
Estimating runoff coefficient for quantity assessmentof roof rainwater harvesting system
屋面雨水利用系统量化评估中径流系数的取值
Author(s):
Zhang Wei;  Li Simin;  Tang Fengbing
School of Urban Construction, Hebei University of Engineering, Handan 056038, China
张炜;  李思敏;  唐锋兵
河北工程大学城市建设学院, 邯郸 056038
Keywords:
roof rainwater harvesting system;  event runoff coefficient;  annual runoff coefficient;  rainfall depth
屋面雨水利用系统;  场次径流系数;  年均径流系数;  降雨深度
PACS:
TV121
DOI:
10.3969/j.issn.1003-7985.2014.02.015
Abstract:
In order to accurately estimate the runoff coefficient for the quantity assessment of the roof rainwater harvesting system(RRHS), great differences in the value of event runoff coefficient(ψERC)were observed by field monitoring under different roof types(roof slope and material)and diverse rainfall distributions(rainfall depth and intensity)in three years(2010 to 2012)in Handan, Hebei, China. The results indicate that the distribution of ψERC is more highly correlated with the event rainfall depth than other factors. The relationship between ψERC and the rainfall depth can be well represented by the piecewise linear function. Further, based on the daily rainfall data over the period from 1960 to 2008, the value of the annual runoff coefficient(ψARC)is calculated. Although the total rainfall depth in each year is different, ψARC in Handan can be considered as a constant(0.62)approximately. The results can be used for the quantity assessment and performance analysis of the RRHS.
为了实现屋面雨水利用系统量化评估中径流系数的精确取值, 通过连续3年(2010—2012年)对河北省邯郸市不同屋面类型(屋面坡度和材料)及降雨特征(降雨深度和强度)的屋面径流进行实地监测, 得到了各场实际降雨屋面径流系数的不同取值.研究结果表明, 屋面径流系数的取值分布与各降雨事件的降雨深度相关性较强, 其他影响因素对其影响较小.场次径流系数的取值与降雨深度呈显著的分段线性关系.根据1960—2008年的日降雨数据资料, 计算得出邯郸市年均屋面径流系数可近似按照0.62这一常数进行取值.该研究成果可用于屋面雨水利用系统的量化评估及运行分析.

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Memo

Memo:
Biography: Zhang Wei(1981—), male, master, lecturer, zhangwei1981@hebeu.edu.cn.
Foundation items: The National Science and Technology Major Project of China(No.2012ZX07203-003), the Major Basic Research Program of Hebei Province(No.12966738D), the Natural Science Foundation of Hebei Province(No.E2014402101).
Citation: Zhang Wei, Li Simin, Tang Fengbing.Estimating runoff coefficient for quantity assessment of roof rainwater harvesting system[J].Journal of Southeast University(English Edition), 2014, 30(2):220-224.[doi:10.3969/j.issn.1003-7985.2014.02.015]
Last Update: 2014-06-20