ALSERepository of Iași University of Life Sciences, ROMANIA

Fighting water hammer in the pressurized adduction works of hydrotechnical systems

Show simple item record Chiorescu, Esmeralda Filipov, Feodor Jităreanu, Sergiu 2021-12-16T11:22:14Z 2021-12-16T11:22:14Z 2014
dc.identifier.citation Chiorescu, Esmeralda, Feodor Filipov, Sergiu Jităreanu. 2014. "Fighting water hammer in the pressurized adduction works of hydrotechnical systems". Lucrări Ştiinţifice USAMV - Iaşi Seria Agronomie 57(2): 75-78.
dc.description.abstract This paper presents an experimentally proven mathematical model of determining theoretically the functional characteristics of an overpressure safety valve of open type, with a spring. These were implemented in a computer program that simulates the water hammer in a gravitational adduction, to quantitatively determine the suppressing effect of the valve. For the qualitative and/or quantitative effect of the water hammer, the elasticity of the fluid and of the pipe wall must be taken into consideration. Although the duration of the phenomena, TLB =tf – t0, is usually relatively small, the study of the water hammer is of paramount importance since, in the absence of constructive solutions and/or adequate usage measures, dangerous overpressures and/or under-pressures may occur, leading to the loss of resistance and/or stability of the hydraulic system with serious economic and safety consequences. The goal of this study is to determine the sections and the moments in which dangerous pressures occur, as well as to find technical solutions to fight water hammers. As far as the values of the parameters are concerned (that is the pressures) and their time variation, respectively the manifestation of the water hammer phenomena, these are specific to each concrete hydraulic plant and, in fact, we cannot make significant general assessments. Some apparently insignificant particularities of the general design may be the cause of serious distinctions in the manifestation of the water hammer phenomena. Analytical formulae, graphic-analytical methods and numerical methods can be used to determine the dangerous pressure values. en_US
dc.language.iso en en_US
dc.publisher “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi en_US
dc.subject water hammer en_US
dc.subject safety valve en_US
dc.subject mathematical modeling en_US
dc.subject numerical simulation en_US
dc.subject overpressure suppression en_US
dc.title Fighting water hammer in the pressurized adduction works of hydrotechnical systems en_US
dc.type Article en_US Esmeralda Chiorescu, Feodor Filipov, USAMV, Iaşi Sergiu Jităreanu, APIA, Iaşi
dc.publicationName Lucrări Ştiinţifice USAMV - Iaşi Seria Agronomie
dc.volume 57
dc.issue 2
dc.publicationDate 2014
dc.startingPage 75
dc.endingPage 78
dc.identifier.eissn 2069-6727

Files in this item

This item appears in the following Collection(s)

Show simple item record