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A Reliability Analysis of Rainwater Catchment System
Water Resources ( IF 1 ) Pub Date : 2021-05-25 , DOI: 10.1134/s0097807821030027
Ammar Adham , Rasha Abed , Coen Ritsema

Abstract

This article examines the reliability of rainwater harvesting (RWH) systems in subcatchment area. Using water balance simulation and two definitions of this value (time-based and volumetric ones), the reliability of rainwater harvesting systems for 25 locations in Medenine’s dryland agricultural areas in south-eastern Tunisia is assessed. Extensive computer software was created using modelling idea for daily water balance, and three meteorological extremes, i.e. wet, average and dry years, were selected by analysing historical 20-year daily rainfall data to assess RWH system performance. Results stated that for wet climatic conditions, volumetric reliability of around 30–70% can be attained, whereas for these circumstances, only 10–24% time-based reliability can be accomplished. The method described in this article can also be applied to other arid and semi-arid areas by using daily rainfall data to predict water savings and the reliability of RWH systems.



中文翻译:

雨水集水系统的可靠性分析

摘要

本文研究了集水区的雨水收集(RWH)系统的可靠性。使用水平衡模拟和该值的两个定义(基于时间的定义和基于体积的定义),评估了突尼斯东南部梅德宁干旱地区农业区中25个地点的雨水收集系统的可靠性。利用建模思想为每日的水平衡创建了广泛的计算机软件,并通过分析20年的每日历史降雨数据来评估RWH系统性能,选择了三个气象极端值,即湿年,平均年和干旱年。结果表明,在潮湿的气候条件下,可以达到约30–70%的体积可靠性,而在这些情况下,只能实现10–24%的基于时间的可靠性。

更新日期:2021-05-25
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