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
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.
(Less)
- author
- Jin, Zhi-jiang
; Gao, Zhi xin
; Zhang, Ming
and Qian, Jin Yuan
LU
- organization
- publishing date
- 2017-09-01
- 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
- volume
- 139
- issue
- 9
- article number
- 091102
- publisher
- American Society Of Mechanical Engineers (ASME)
- external identifiers
-
- wos:000412972500002
- 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
- 2025-01-07 17:22:12
@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>}},
author = {{Jin, Zhi-jiang and Gao, Zhi xin and Zhang, Ming and Qian, Jin Yuan}},
issn = {{0098-2202}},
keywords = {{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}},
title = {{Pressure Drop Analysis of Pilot-Control Globe Valve With Different Structural Parameters}},
url = {{http://dx.doi.org/10.1115/1.4036268}},
doi = {{10.1115/1.4036268}},
volume = {{139}},
year = {{2017}},
}