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Turbulent compressible flow analysis on multi-stage high pressure reducing valve

Chen, Fu qiang ; Qian, Jin yuan LU ; Chen, Min rui ; Zhang, Ming ; Chen, Li long and Jin, Zhi jiang (2018) In Flow Measurement and Instrumentation 61. p.26-37
Abstract

Pressure reducing valve plays an important role in thermodynamic systems. Under extreme operating conditions, greater demands are requested on pressure reducing systems. In this paper, a novel multi-stage high pressure reducing valve (MSHPRV) is proposed, which can achieve multi-stage pressure reducing processes, improve the flow characteristics and deal with complex conditions. Here, the effects of different structural parameters on turbulent compressible flow inside MSHPRV are numerically investigated to achieve low valve noise and energy consumption. Mach number is taken as the parameter to reflect the fluid compressibility. Higher Mach number can cause serious aerodynamic noise and large amount of energy consumption. Based on this,... (More)

Pressure reducing valve plays an important role in thermodynamic systems. Under extreme operating conditions, greater demands are requested on pressure reducing systems. In this paper, a novel multi-stage high pressure reducing valve (MSHPRV) is proposed, which can achieve multi-stage pressure reducing processes, improve the flow characteristics and deal with complex conditions. Here, the effects of different structural parameters on turbulent compressible flow inside MSHPRV are numerically investigated to achieve low valve noise and energy consumption. Mach number is taken as the parameter to reflect the fluid compressibility. Higher Mach number can cause serious aerodynamic noise and large amount of energy consumption. Based on this, transmission loss of MSHPRV is also studied to achieve better noise control performances. Meanwhile, larger turbulent dissipation rate means larger degree of energy consumption, so it is with the exergy loss. Thus, numerical models with different valve openings, perforated plate diameters, chamfer radii of perforated plates, pressure ratios and stages of perforated plates are established, and the effects of these structural parameters on the compressible turbulent flow and energy consumption of MSHPRV are investigated. Results show that different structural parameters have significant impacts on compressible turbulent flow and energy consumption performance in MSHPRV. The best noise control and least energy consumption of MSHPRV is achieved with such parameters as pressure ratio 7, perforated plate diameter 4 mm and 4 stage plates. This work can benefit the further research work on energy saving and multi-stage design of pressure reducing devices.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Computational fluid dynamics, Energy consumption, Multi-stage high pressure reducing valve, Thermodynamic system, Turbulent compressible flow
in
Flow Measurement and Instrumentation
volume
61
pages
12 pages
publisher
Elsevier
external identifiers
  • scopus:85044978213
ISSN
0955-5986
DOI
10.1016/j.flowmeasinst.2018.03.013
language
English
LU publication?
yes
id
0e5eb57f-7d65-4714-9a7a-01279f9fae2a
date added to LUP
2018-04-17 13:11:05
date last changed
2020-04-02 01:53:42
@article{0e5eb57f-7d65-4714-9a7a-01279f9fae2a,
  abstract     = {<p>Pressure reducing valve plays an important role in thermodynamic systems. Under extreme operating conditions, greater demands are requested on pressure reducing systems. In this paper, a novel multi-stage high pressure reducing valve (MSHPRV) is proposed, which can achieve multi-stage pressure reducing processes, improve the flow characteristics and deal with complex conditions. Here, the effects of different structural parameters on turbulent compressible flow inside MSHPRV are numerically investigated to achieve low valve noise and energy consumption. Mach number is taken as the parameter to reflect the fluid compressibility. Higher Mach number can cause serious aerodynamic noise and large amount of energy consumption. Based on this, transmission loss of MSHPRV is also studied to achieve better noise control performances. Meanwhile, larger turbulent dissipation rate means larger degree of energy consumption, so it is with the exergy loss. Thus, numerical models with different valve openings, perforated plate diameters, chamfer radii of perforated plates, pressure ratios and stages of perforated plates are established, and the effects of these structural parameters on the compressible turbulent flow and energy consumption of MSHPRV are investigated. Results show that different structural parameters have significant impacts on compressible turbulent flow and energy consumption performance in MSHPRV. The best noise control and least energy consumption of MSHPRV is achieved with such parameters as pressure ratio 7, perforated plate diameter 4 mm and 4 stage plates. This work can benefit the further research work on energy saving and multi-stage design of pressure reducing devices.</p>},
  author       = {Chen, Fu qiang and Qian, Jin yuan and Chen, Min rui and Zhang, Ming and Chen, Li long and Jin, Zhi jiang},
  issn         = {0955-5986},
  language     = {eng},
  month        = {06},
  pages        = {26--37},
  publisher    = {Elsevier},
  series       = {Flow Measurement and Instrumentation},
  title        = {Turbulent compressible flow analysis on multi-stage high pressure reducing valve},
  url          = {http://dx.doi.org/10.1016/j.flowmeasinst.2018.03.013},
  doi          = {10.1016/j.flowmeasinst.2018.03.013},
  volume       = {61},
  year         = {2018},
}