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Pressure Drop Analysis of Pilot-Control Globe Valve With Different Structural Parameters

Jin, Zhi-jiang; Gao, Zhi xin; Zhang, Ming and Qian, Jin Yuan LU (2017) In Journal of Fluids Engineering, Transactions of the ASME 139(9).
Abstract

Pilot-control globe valve (PCGV) can use the pressure drop caused by fluid flowing through the orifice located at valve core bottom to open or close the main valve using a small pilot valve. In this paper, computational fluid dynamics (CFD) method is adopted to analyze the pressure drop before and after valve core of PCGV and minor loss of orifice under different structural parameters and inlet velocities, and the simulation results show a good agreement with the experimental results. It turns out that the valve diameters, orifice diameters, and pilot pipe diameters have great influences on the pressure drop and the loss coefficient. Moreover, an expression is proposed which can be used to calculate minor loss coefficient, then to... (More)

Pilot-control globe valve (PCGV) can use the pressure drop caused by fluid flowing through the orifice located at valve core bottom to open or close the main valve using a small pilot valve. In this paper, computational fluid dynamics (CFD) method is adopted to analyze the pressure drop before and after valve core of PCGV and minor loss of orifice under different structural parameters and inlet velocities, and the simulation results show a good agreement with the experimental results. It turns out that the valve diameters, orifice diameters, and pilot pipe diameters have great influences on the pressure drop and the loss coefficient. Moreover, an expression is proposed which can be used to calculate minor loss coefficient, then to estimate the pressure drop and driving force of a PCGV within limited conditions. This paper can be referenced as guidance for deciding the dimension of structural parameters and spring stiffness during design process of a PCGV.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
complex flows, computational fluid dynamics, fluid-structure interaction, pilot-control globe valve (PCGV), pressure drop
in
Journal of Fluids Engineering, Transactions of the ASME
volume
139
issue
9
publisher
American Society Of Mechanical Engineers (ASME)
external identifiers
  • scopus:85021752132
ISSN
0098-2202
DOI
10.1115/1.4036268
language
English
LU publication?
yes
id
2db02327-6c03-4bdd-bb4d-1fca91a84f18
date added to LUP
2017-07-18 13:37:09
date last changed
2017-07-23 05:31:22
@article{2db02327-6c03-4bdd-bb4d-1fca91a84f18,
  abstract     = {<p>Pilot-control globe valve (PCGV) can use the pressure drop caused by fluid flowing through the orifice located at valve core bottom to open or close the main valve using a small pilot valve. In this paper, computational fluid dynamics (CFD) method is adopted to analyze the pressure drop before and after valve core of PCGV and minor loss of orifice under different structural parameters and inlet velocities, and the simulation results show a good agreement with the experimental results. It turns out that the valve diameters, orifice diameters, and pilot pipe diameters have great influences on the pressure drop and the loss coefficient. Moreover, an expression is proposed which can be used to calculate minor loss coefficient, then to estimate the pressure drop and driving force of a PCGV within limited conditions. This paper can be referenced as guidance for deciding the dimension of structural parameters and spring stiffness during design process of a PCGV.</p>},
  articleno    = {091102},
  author       = {Jin, Zhi-jiang and Gao, Zhi xin and Zhang, Ming and Qian, Jin Yuan},
  issn         = {0098-2202},
  keyword      = {complex flows,computational fluid dynamics,fluid-structure interaction,pilot-control globe valve (PCGV),pressure drop},
  language     = {eng},
  month        = {09},
  number       = {9},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  series       = {Journal of Fluids Engineering, Transactions of the ASME},
  title        = {Pressure Drop Analysis of Pilot-Control Globe Valve With Different Structural Parameters},
  url          = {http://dx.doi.org/10.1115/1.4036268},
  volume       = {139},
  year         = {2017},
}