基于水工模型标定的配水管网泄漏评价

IF 0.9 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES
M. Elkharbotly, A. Khalifa, M. Seddik
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引用次数: 0

摘要

对埃及的区域计量面积(dma)进行水力分析是一项重要的工作,需要建立一个永久性的监测系统,消除泄漏既昂贵又耗时。埃及超过40%的水网使用时间超过40年。因此,埃及每天损失约30%的水,即2550万立方米。在本研究中,达尔文校准器被用于预测DMA漏水的大致位置。本研究提出了一种基于物理的水力模型wdn校准方法,旨在从初始阶段支持泄漏,评估,监测和管理。结果表明,Elshewash测点入口平均压力(Pa)为20.89,平均流量为18.3 (m3)。反之,出口平均压力为18.3 (Pa),平均流量为8.22 (m3)。在Rawafee El Quser测点,入口点的平均流量为1.89 (Pa),平均流量为17.42 (m3)。出口平均压力为1.81(Pa),平均流量为6.3 (m3)。在所有将节点压力和输入流量作为观测数据引入程序的网络中,泄漏位置确定在或在准确位置。计算了泄漏位置和泄漏量。这些结果与现场检查的泄漏情况相似。通过模型标定,可以通过增加预测能力和监测仪器,建立即时压力控制机制和优化管道维护策略来减少漏水。这些行动可以使环境受益,因为节约了水和能源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
LEAKAGE ASSESSMENT IN WATER DISTRIBUTION NETWORKS USING HYDRAULIC MODEL CALIBRATION
A hydraulic analysis of Egypt's district metered area (DMAs) is a significant undertaking that creates a permanent monitoring system and eliminating leaks is highly expensive and time-consuming. More than 40% of water networks in Egypt are over 40 years old. Consequently, Egypt loses around 30% of daily water produced, which accounts for 25.5 Million m3. In this study, Darwin Calibrator was used to predict the proximate location of water leakage in a DMA. This study presents a physically-based method for WDNs calibration of hydraulic models which intends to support leakage, assessment, monitoring and management from the initial stages. Results indicated that the mean pressure (Pa) for inlet at Elshewash measuring point was 20.89 (Pa) and the mean flow was 18.3 (m3). Conversely, mean pressure for outlet was 18.3 (Pa) and mean flow was 8.22 (m3). At Rawafee El Quser measuring points was1.89 (Pa) at the inlet point and mean flow was 17.42 (m3). However, at outlet mean pressure was 1.81(Pa) and mean flow was 6.3 (m3). In all the networks where the node's pressure and input discharge were introduced to the program as observational data, leakage location was determined at or in the exact location. The location and the amount of leakage were calculated. These results were similar to the leakage resulting from the field inspection. It is inferred that the model calibration could lead to a reduction of water leakage by increasing predictive capacity and monitoring instruments, establishing an instant pressure control mechanism and optimising pipe maintenance strategy. These actions could benefit the environment as a result of water and energy savings.
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来源期刊
CiteScore
1.60
自引率
36.40%
发文量
0
审稿时长
8.6 months
期刊介绍: Environmental Engineering and Management Journal is an international journal that publishes reviewed original research papers of both experimental and theoretical nature in the following areas: environmental impact assessment; environmental integrated management; risk assessment and management; environmental chemistry; environmental protection technologies (water, air, soil); pollution reduction at source and waste minimization; chemical and biological process engineering; cleaner production, products and services; sensors in environment control; sources of radiation and protection technologies; waste valorization technologies and management; environmental biotechnology; energy and environment; modelling, simulation and optimization for environmental protection; technologies for drinking and industrial water; life cycle assessments of products; environmental strategies and policies; cost-profitt analysis in environmental protection; eco-industry and environmental market; environmental education and sustainable development. Environmental Engineering and Management Journal will publish: original communications describing important new discoveries or further developments in the above-mentioned topics; reviews, mainly of new rapidly developing areas of environmental protection; special themed issues on relevant topics; advertising.
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