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114945

STUDYING OF WATER HAMMER IN WATER SUPPLY PIPES NETWORK WITH DIFFERENT ABNORMAL OPERATION CONDITIONS (CASE STUDY - ASSIUT CITY NETWORK)

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Civil Engineering: structural, Geotechnical, reinforced concrete and s…nd sanitary engineering, Hydraulic, Railway, construction Management.

Abstract

This research studies the effect of abnormal operation conditions on water hammer phenomenon in water supply pipe network in order to provide an acceptable level of protection against system failure due to pipes collapse or bursting. Water Hammer and Mass Oscillation WHAMO software is used in the analysis which uses the implicit finite difference scheme for solving the momentum and continuity equations at unsteady state case. Assiut city water supply network is used in the analysis. Flow of pipe network is studied due to; firstly, the sudden change in water demand at one or more junctions, secondly, the closing of some pipes of the network on the transient pressure and flow rates, and finally the failure in some network pipelines on intrusion or leakage due to transient pressure head fluctuations. The previous cases are studied in steady normal case, without any protection, and under different protection device(s) such as non-return valve and open surge tank. The results showed that rapidly change in demand increases the pressure head and flow rate fluctuations. Closing some pipelines increases pressure in a region and decreases it at another and also changes the direction of flow in the network. Also, failure of some pipelines can cause intrusion and leakage from outside the network to inside and inversely, which affects the values of minimum pressure heads more than the maximum ones. Finally, using of open surge tank with non-return valve protects the pipe network effectively from the harm water hammer.

DOI

10.21608/jesaun.2013.114945

Keywords

Water Hammer, pipes network, abnormal operation conditions, Assiut city

Authors

First Name

Nashat A.

Last Name

Ali

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, Assiut University

Email

-

City

-

Orcid

-

First Name

Gamal

Last Name

Abozeid

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, Assiut University

Email

-

City

-

Orcid

-

First Name

Moustafa S.

Last Name

Darweesh

MiddleName

-

Affiliation

Civil Engineering Department, Faculty of Engineering, Assiut University

Email

eng_taftaf82@yahoo.com

City

-

Orcid

-

Volume

41

Article Issue

No 6

Related Issue

16869

Issue Date

2013-11-01

Receive Date

2013-09-25

Publish Date

2013-11-01

Page Start

2,036

Page End

2,054

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 41_Issue No 6_Pages 2036-2054.pdf

PDF . 736.2kB

Link

https://jesaun.journals.ekb.eg/article_114945.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114945

Order

2

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

STUDYING OF WATER HAMMER IN WATER SUPPLY PIPES NETWORK WITH DIFFERENT ABNORMAL OPERATION CONDITIONS (CASE STUDY - ASSIUT CITY NETWORK)

Details

Type

Article

Created At

23 Jan 2023