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Flow rate analysis of compressible superheated steam through pressure reducing valves

Qian, Jin yuan LU ; Wei, Lin; Zhang, Ming; Chen, Fu qiang; Chen, Li Long; Jiang, Wei kang and Jin, Zhi-jiang (2017) In Energy 135. p.650-658
Abstract

Steam flow is the main form for energy transfer in power plants, process industries, etc. The flow rate of the steam relates to the energy transfer amount directly. Pressure reducing valves are used for flow rate control of the compressible superheated steam in these piping systems. In this paper, a pressure reducing valve with a novel valve core is proposed. In order to analyze the internal flow characteristics of the compressible superheated steam and the flow rate adjustment performance of the proposed pressure reducing valve, a numerical model of DN80 pressure reducing valve is established. Then, the flow characteristics inside are studied numerically. Meanwhile, the flow rate adjustment performance is also carried out... (More)

Steam flow is the main form for energy transfer in power plants, process industries, etc. The flow rate of the steam relates to the energy transfer amount directly. Pressure reducing valves are used for flow rate control of the compressible superheated steam in these piping systems. In this paper, a pressure reducing valve with a novel valve core is proposed. In order to analyze the internal flow characteristics of the compressible superheated steam and the flow rate adjustment performance of the proposed pressure reducing valve, a numerical model of DN80 pressure reducing valve is established. Then, the flow characteristics inside are studied numerically. Meanwhile, the flow rate adjustment performance is also carried out experimentally. Compared with the numerical and experimental results, it shows an agreement and both of them are similar to linear flow rate. Furthermore, a fitting equation for the flow rate prediction is carried out for the engineering applications under different working conditions.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Adjustment performance, Compressible superheated steam, Computational fluid dynamics (CFD), Flow rate, Pressure reducing valve
in
Energy
volume
135
pages
9 pages
publisher
Elsevier
external identifiers
  • scopus:85021715334
  • wos:000412043300057
ISSN
0360-5442
DOI
10.1016/j.energy.2017.06.170
language
English
LU publication?
yes
id
d86a54c3-9ae0-4d55-873e-d5abb2823a1a
date added to LUP
2017-07-18 13:34:42
date last changed
2018-01-16 13:21:20
@article{d86a54c3-9ae0-4d55-873e-d5abb2823a1a,
  abstract     = {<p>Steam flow is the main form for energy transfer in power plants, process industries, etc. The flow rate of the steam relates to the energy transfer amount directly. Pressure reducing valves are used for flow rate control of the compressible superheated steam in these piping systems. In this paper, a pressure reducing valve with a novel valve core is proposed. In order to analyze the internal flow characteristics of the compressible superheated steam and the flow rate adjustment performance of the proposed pressure reducing valve, a numerical model of DN80 pressure reducing valve is established. Then, the flow characteristics inside are studied numerically. Meanwhile, the flow rate adjustment performance is also carried out experimentally. Compared with the numerical and experimental results, it shows an agreement and both of them are similar to linear flow rate. Furthermore, a fitting equation for the flow rate prediction is carried out for the engineering applications under different working conditions.</p>},
  author       = {Qian, Jin yuan and Wei, Lin and Zhang, Ming and Chen, Fu qiang and Chen, Li Long and Jiang, Wei kang and Jin, Zhi-jiang},
  issn         = {0360-5442},
  keyword      = {Adjustment performance,Compressible superheated steam,Computational fluid dynamics (CFD),Flow rate,Pressure reducing valve},
  language     = {eng},
  month        = {09},
  pages        = {650--658},
  publisher    = {Elsevier},
  series       = {Energy},
  title        = {Flow rate analysis of compressible superheated steam through pressure reducing valves},
  url          = {http://dx.doi.org/10.1016/j.energy.2017.06.170},
  volume       = {135},
  year         = {2017},
}