Background losses reduction by excessive pressure cut off

It is one of the greatest challenges water utilities are facing in striving to reduce and control Non Revenue Water (NRW) within an economic level. While supplying the population with sufficient water, the reduction of NRW has been a key issue in judging the performance of all water utilities. Ba...

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Main Author:	Ngadiran, Zainudin
Format:	Thesis
Language:	English
Published:	2013
Subjects:	TD Environmental technology Sanitary engineering
Online Access:	http://eprints.utm.my/id/eprint/48167/1/ZainudinNgadiranMFKA2013.pdf
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spelling	my-utm-ep.481672017-10-10T03:46:38Z Background losses reduction by excessive pressure cut off 2013 Ngadiran, Zainudin TD Environmental technology. Sanitary engineering It is one of the greatest challenges water utilities are facing in striving to reduce and control Non Revenue Water (NRW) within an economic level. While supplying the population with sufficient water, the reduction of NRW has been a key issue in judging the performance of all water utilities. Background loss is one component of physical losses which is the most to contribute to NRW. This study aimed on pressure management method conducted at a site to reduce background loss. The pressure management method used is by the installation of a Pressure Reducing Valve (PRV) with timer-based pressure cut-off controller as an on-site verification. The BE59 - Kg. Melayu Pandan, one of the District Meter Area (DMA) in Johor Bahru has been selected as a case study. The Step Tests are carried out to analyse and identify the steps with high background leakage and to find suitable location for the purpose of PRV installation. The DMA meter and a data logger are used to measure and record pressure and flow profiles to determine leakage at each step and to establish leakage baselines, before and after the activation of the PRV. The results indicated a high reduction of background loss and given significant impact on the NRW level in Johor Bahru. In financial terms, volume of water saved and the monthly expenditure shows the return of investment (R.O.I) is in a period of 6 months. This research findings show a higher reduction on background loss can be achieved by optimising the cut-off controller, analysing further excess pressure cutoff based on pressure profiles in the existing or new DMA with a PRV and controller in a large scale. Comparisons with other methods of pipe replacement and Active Leakage Control (ALC), indicate that, the pressure management by excess pressure cut-off is the most feasible, economical and effective method in the NRW reduction. 2013 Thesis http://eprints.utm.my/id/eprint/48167/ http://eprints.utm.my/id/eprint/48167/1/ZainudinNgadiranMFKA2013.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:79878?queryType=vitalDismax&query=Background+losses+reduction+by+excessive+pressure+cut+off&public=true masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TD Environmental technology Sanitary engineering
spellingShingle	TD Environmental technology Sanitary engineering Ngadiran, Zainudin Background losses reduction by excessive pressure cut off
description	It is one of the greatest challenges water utilities are facing in striving to reduce and control Non Revenue Water (NRW) within an economic level. While supplying the population with sufficient water, the reduction of NRW has been a key issue in judging the performance of all water utilities. Background loss is one component of physical losses which is the most to contribute to NRW. This study aimed on pressure management method conducted at a site to reduce background loss. The pressure management method used is by the installation of a Pressure Reducing Valve (PRV) with timer-based pressure cut-off controller as an on-site verification. The BE59 - Kg. Melayu Pandan, one of the District Meter Area (DMA) in Johor Bahru has been selected as a case study. The Step Tests are carried out to analyse and identify the steps with high background leakage and to find suitable location for the purpose of PRV installation. The DMA meter and a data logger are used to measure and record pressure and flow profiles to determine leakage at each step and to establish leakage baselines, before and after the activation of the PRV. The results indicated a high reduction of background loss and given significant impact on the NRW level in Johor Bahru. In financial terms, volume of water saved and the monthly expenditure shows the return of investment (R.O.I) is in a period of 6 months. This research findings show a higher reduction on background loss can be achieved by optimising the cut-off controller, analysing further excess pressure cutoff based on pressure profiles in the existing or new DMA with a PRV and controller in a large scale. Comparisons with other methods of pipe replacement and Active Leakage Control (ALC), indicate that, the pressure management by excess pressure cut-off is the most feasible, economical and effective method in the NRW reduction.
format	Thesis
qualification_level	Master's degree
author	Ngadiran, Zainudin
author_facet	Ngadiran, Zainudin
author_sort	Ngadiran, Zainudin
title	Background losses reduction by excessive pressure cut off
title_short	Background losses reduction by excessive pressure cut off
title_full	Background losses reduction by excessive pressure cut off
title_fullStr	Background losses reduction by excessive pressure cut off
title_full_unstemmed	Background losses reduction by excessive pressure cut off
title_sort	background losses reduction by excessive pressure cut off
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2013
url	http://eprints.utm.my/id/eprint/48167/1/ZainudinNgadiranMFKA2013.pdf
_version_	1747817324085248000

Background losses reduction by excessive pressure cut off

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