Study on impedance size optimization of a one-way surge tank in a long-distance water supply system

The size of the impedance hole of the one-way surge tank will affect its protection against water hammer. In this paper, a mathematical model of one-way surge tank with impedance is established based on the characteristic line method. The pressure-reducing penetration formula of the one-way surge ta...

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Autores principales:	Xuyun Chen, Jian Zhang, Xiaodong Yu, Sheng Chen, Lin Shi
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	impedance hole long-distance water supply project one-way surge tank pump stop water hammer protection Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/441cb3ee535c4fdbb65143c2d1901a3d
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id	oai:doaj.org-article:441cb3ee535c4fdbb65143c2d1901a3d
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spelling	oai:doaj.org-article:441cb3ee535c4fdbb65143c2d1901a3d2021-11-06T07:09:55ZStudy on impedance size optimization of a one-way surge tank in a long-distance water supply system1606-97491607-079810.2166/ws.2020.370https://doaj.org/article/441cb3ee535c4fdbb65143c2d1901a3d2021-03-01T00:00:00Zhttp://ws.iwaponline.com/content/21/2/868https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798The size of the impedance hole of the one-way surge tank will affect its protection against water hammer. In this paper, a mathematical model of one-way surge tank with impedance is established based on the characteristic line method. The pressure-reducing penetration formula of the one-way surge tank including impedance loss and the calculation formula of make-up water flow are deduced. Based on these formulas, the influence of impedance hole diameter ratio (ratio of impedance hole of one-way surge tank to diameter of water pipeline) on the water hammer protection effect is analyzed, and the reasonable value range of impedance hole diameter ratio is given. The correctness of the theoretical analysis results is verified by an engineering example. The results show that the pressure and flow relationship derived from the formula are consistent with the numerical simulation results. The penetration pressure drop of the one-way surge tank is inversely proportional to the impedance size. When the impedance hole diameter ratio is less than 0.2, the penetration pressure drop will cause serious negative pressure. The make-up water flow is proportional to the size of the impedance hole, and the make-up water volume should be reduced while ensuring that the pipeline has no negative pressure. HIGHLIGHTS The mathematical model of impedance type one-way tower is established.; The relationship between the penetration pressure drop of the tower and the size of the impedance hole is deduced.; The relationship between the filling water flow rate of the tower and the size of the impedance hole is deduced.; The reasonable value range of impedance hole size of the tower is given.;Xuyun ChenJian ZhangXiaodong YuSheng ChenLin ShiIWA Publishingarticleimpedance holelong-distance water supply projectone-way surge tankpump stopwater hammer protectionWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 2, Pp 868-877 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	impedance hole long-distance water supply project one-way surge tank pump stop water hammer protection Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	impedance hole long-distance water supply project one-way surge tank pump stop water hammer protection Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Xuyun Chen Jian Zhang Xiaodong Yu Sheng Chen Lin Shi Study on impedance size optimization of a one-way surge tank in a long-distance water supply system
description	The size of the impedance hole of the one-way surge tank will affect its protection against water hammer. In this paper, a mathematical model of one-way surge tank with impedance is established based on the characteristic line method. The pressure-reducing penetration formula of the one-way surge tank including impedance loss and the calculation formula of make-up water flow are deduced. Based on these formulas, the influence of impedance hole diameter ratio (ratio of impedance hole of one-way surge tank to diameter of water pipeline) on the water hammer protection effect is analyzed, and the reasonable value range of impedance hole diameter ratio is given. The correctness of the theoretical analysis results is verified by an engineering example. The results show that the pressure and flow relationship derived from the formula are consistent with the numerical simulation results. The penetration pressure drop of the one-way surge tank is inversely proportional to the impedance size. When the impedance hole diameter ratio is less than 0.2, the penetration pressure drop will cause serious negative pressure. The make-up water flow is proportional to the size of the impedance hole, and the make-up water volume should be reduced while ensuring that the pipeline has no negative pressure. HIGHLIGHTS The mathematical model of impedance type one-way tower is established.; The relationship between the penetration pressure drop of the tower and the size of the impedance hole is deduced.; The relationship between the filling water flow rate of the tower and the size of the impedance hole is deduced.; The reasonable value range of impedance hole size of the tower is given.;
format	article
author	Xuyun Chen Jian Zhang Xiaodong Yu Sheng Chen Lin Shi
author_facet	Xuyun Chen Jian Zhang Xiaodong Yu Sheng Chen Lin Shi
author_sort	Xuyun Chen
title	Study on impedance size optimization of a one-way surge tank in a long-distance water supply system
title_short	Study on impedance size optimization of a one-way surge tank in a long-distance water supply system
title_full	Study on impedance size optimization of a one-way surge tank in a long-distance water supply system
title_fullStr	Study on impedance size optimization of a one-way surge tank in a long-distance water supply system
title_full_unstemmed	Study on impedance size optimization of a one-way surge tank in a long-distance water supply system
title_sort	study on impedance size optimization of a one-way surge tank in a long-distance water supply system
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/441cb3ee535c4fdbb65143c2d1901a3d
work_keys_str_mv	AT xuyunchen studyonimpedancesizeoptimizationofaonewaysurgetankinalongdistancewatersupplysystem AT jianzhang studyonimpedancesizeoptimizationofaonewaysurgetankinalongdistancewatersupplysystem AT xiaodongyu studyonimpedancesizeoptimizationofaonewaysurgetankinalongdistancewatersupplysystem AT shengchen studyonimpedancesizeoptimizationofaonewaysurgetankinalongdistancewatersupplysystem AT linshi studyonimpedancesizeoptimizationofaonewaysurgetankinalongdistancewatersupplysystem
_version_	1718443790629339136

Study on impedance size optimization of a one-way surge tank in a long-distance water supply system

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