- 期刊
- OpenAccess
Non-Revenue Water (NRW) Reduction Methodology in Calamba City, Laguna, Philippines: Comparative Analysis of Three Water Distribution Models Using WaterGEMS
菲律賓卡蘭巴市降低無收益水量之方法研究：使用WaterGEMS針對三項供水分配模型進行對比分析
摘要
Low system pressure and intermittent water supply with high percentage of non-revenue water (NRW) is the current scenario of water system in the Southville 6, Brgy. Kay-Anlog, Calamba City, Laguna, Philippines. Being a relocation site for informal settlers in Laguna, Philippines, there is a growing demand in water which the existing water system could not cater. The main objective of this study is to develop a water distribution system that could increase the service quality of the utility in the area through comparative analysis of methods that would address the problem in water loss and irregular water supply. In this regard, this paper compared three hydraulic network models to evaluate the existing condition of the system and to identify engineering approaches to improve the system's level of service in terms of low non-revenue water and adequate system pressures in analysis of network design with the aid of WaterGEMS. The first method in improving water system is through replacement of pipe, the second is adding water source and the third is adding water source and implementing district metering areas (DMA). With the average system pressure of 28.10 psi and NRW lowered by 8.63%, the simulated hydraulic model with additional source and implemented DMAs is the water distribution system suited in the area of study.
並列摘要
菲律賓的柯蘭巴市正面臨由於系統供水壓力不足以及斷斷續續的供水導致大量無收益水量的困境。菲律賓的拉古納省作為許多非正式居民的搬遷安置點，大量移入的居民對於水資源的需求量因此不斷增長，然而現有的供水系統則無法負荷對於供水需求。本文研究的目的旨在開發新的供水分配系統，通過對比分析解決水耗與間歇性供水問題的方法，從而提高該地區公用事業的服務質量。因此，本文通過使用WaterGEMS進行網路設計分析，比對了三種類型的水力網路模型，評估系統的現有情況以及識別其工程方法，期望以此降低無收益水量的問題、提升供水系統壓力，從而提升公用服務質量。改善供水系統的第一個方法是更換管道，第二個是增加水源，第三則是增加水源並且實施獨立計量區域。隨著平均29.10 psi的系統壓力，無收益水量下降了8.63%。本研究結果顯示，用以進行模擬的水力網路模型中，增加水源並且實施獨立計量區域的供水分配系統的方法為最適合被應用在菲律賓拉古納省。