Water Science and Engineering 2009, 2(4) 60-68 DOI:   10.3882/j.issn.1674-2370.2009.04.006  ISSN: 1674-2370 CN: 32-1785/TV

Current Issue | Archive | Search                                                            [Print]   [Close]
Information and Service
This Article
Supporting info
PDF(257KB)
Reference
Service and feedback
Email this article to a colleague
Add to Bookshelf
Add to Citation Manager
Cite This Article
Email Alert
Keywords
hydropower plant
dynamic pipe fracture
pipeline
impulse
water hammer
Authors
YUKIO - KONO
AKIRA - HAGA
KAZUO -KATO
KOTA -SUGAWARA
PubMed
Article by ,
Article by Yukio,.
Article by Akira,.
Article by Kazuo,.K
Article by Kota,.S

Experimental study on dynamic pipe fracture in consideration of hydropower plant model

1,Yukio KONO2,Akira HAGA2,Kazuo KATO2,Kota SUGAWARA2

1. Tohoku Gakuin University
2.

Abstract

In the case of sudden valve closure, water hammer creates the most powerful pressure and damage to pipeline systems. The best way to protect the pipeline system is to eliminate water hammer. The main reasons for water hammer occurrence are valve closure, high initial velocity, and static pressure. However, it is difficult to eliminate water hammer. Water hammer tends to occur when the valve is being closed. In this study, the pipe fracture caused by static water pressure, gradually increasing pressure, and suddenly increasing pressure were compared experimentally in a breaking PVC test pipe. The quasi-static zone, the dynamic zone, and the transition zone are defined through the results of those experiments, with consideration of the fracture patterns of test pipes and impulses. The maximum pressure results were used to design the pipeline even though it is in the dynamic zone.

Keywords hydropower plant   dynamic pipe fracture   pipeline   impulse   water hammer  
Received 2010-01-13 Revised 2010-01-12 Online: 2011-10-10 
DOI: 10.3882/j.issn.1674-2370.2009.04.006
Fund:
Corresponding Authors:
Email: ishikawa@tjcc.tohoku-gakuin.ac.jp
About author:

References:
Similar articles
1.Yong-liang ZHANG; Ming-fei MIAO ; Ji-ming MA.Analytical study on water hammer pressure in pressurized conduits with a throttled surge chamber for slow closure[J]. Water Science and Engineering, 2010,3(2): 174-189

Copyright by Water Science and Engineering