000			05210nam a2200469 a 4500
005			20260817162513.0
008			140618s2012 th ad ||| |000 0 eng d
035			_a.b12132925
099		9	_aAIT Thesis no.WM-12-16
100	0		_aKanchanapun Anusart
245	1	0	_aAnalysis of water and energy conservation alternatives in Bangkok water supply system, Thailand
260			_aPathum Thani : _bAsian Institute of Technology, _c2012
300			_a116, [82] leaves : _bill., charts
490	1		_aThesis ; _vno. WM-12-16
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Water Engineering and Management
502			_aThesis (M. Eng.) - Asian Institute of Technology, 2012
520			_aWater is used to produce energy and energy is also needed to produce water and hence they are closely linked. Ever increasing demand of water and energy requires use to find ways to conserve these resources. This study aims to evaluate the current energy us in water supply system of Metropolitan Waterworks Authority (MWA) and analyzes several alternatives to conserve water and energy. A pilot area, DMA 15-03-02, has been selected for the purpose. A field measurements and survey (216 respondents) was conducted to obtain data for hydraulic modeling and household level energy use respectively in the pilot area. Five alternatives considered in the study are: Alternative 1 (decreasing service pressure), Alternative 2 (decreasing base demand), Alternative 3 (decreasing service pressure using hydro turbine generator) Alternative 4 (increasing service pressure) and Alternative 5 (increasing service pressure with pressure reducing valve, PRV). The secondary data of water production and energy consumption of MWA has been collected. The energy use in each stage of MWA is as follow: raw water intake 0.0097 (4%), water treatment 0.0469 (20%), water transmission 0.0961 (41%) and water distribution 0.0811 (35%). The energy use in the pilot area is estimated to be 0.1765 kWh/m3 by MWA and 0.5 kWh/m3 by customer, respectively. Decreasing in current service pressure indicates that water can be conserved while increasing the supply pressure would affect reduce energy use. Using hydro turbine can reduce pressure and also generate the electricity which can be used for another purpose. Moreover, PRV installation can help reducing leakage 20-25% in case of high pressure. Further, the analysis suggests that increasing pressure up to 18m with PRV can reduce total energy use by 32% (from 0.6765 to 0.4613 kWh/m3) as it will reduce the use of pumps by customer up to 95%.Further, the financial and economic cost-benefit analysis has been calculated in order to evaluate the alternative of water and energy conservation. Decreasing in service pressure is profitable for utility but not for customer due to the pump installation in household. While, some of pressure increasing alternative gives more profit for economic value although it is not for utility financial. This is because the capital cost of pump installation for customers is very high. Therefore, when people are not using pump, the benefit is much more than the cost of water leakage from MWA. Further, the analysis shows that increasing pressure up to 18m with PRV can give the most benefit considering the economic NPV for whole system
650		0	_aEnergy conservation _zThailand _zBangkok
650		0	_aWater conservation _zThailand _zBangkok
700	1		_aBabel, Mukand Singh, _eChairperson
700	1		_aPerret, Sylvain Roger, _eExamination Committee
700	0		_aSutat Weesakul, _eExamination committee
700	1		_aVisvanathan, C., _eExamination Committee
710	2		_aRoyal Thai Government Fellowship, _eScholarship donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. WM-12-16
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B04356
907			_a.b12132925 _bmnait _cj
902			_a240611
998			_b0 _c140618 _dm _ea _fj _g0
962			_a000:001:PDF:b1213292:001483:0:0:0:0:0:0 _tAbstract--AIT Thesis no.WM-12-16 _vn
945			_lmnait
945			_lmnait
945			_lmnarc
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