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Throttling components effect on aerodynamic performance of superheated steam flow in multi-stage high pressure reducing valve

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  • Chen, Fu-qiang
  • Jin, Zhi-jiang

Abstract

Superheated steam (SHS) is widely used in various integrated energy systems. Multi-stage continuous-resistance perforated sleeves and n-stage adjustable-resistance perforated plates are the two key throttling components in the multi-stage high pressure reducing valve (MSHPRV) to control SHS flow. However, no general design guidelines on the relationship between aerodynamic features and throttling components were found. In this paper, the fluid dynamics of SHS flow are revealed by using both the experimental and numerical methods. Then, the effects of typical parameters on the pressure drop and Mach number are investigated. Furthermore, an orthogonal design method with array L9(34) is adopted to achieve the optimized design of throttling components. The results show that SHS flow in the MSHPRV is transonic and shows linear flow rate. Here, the smaller valve opening (L/Lmax), chamfer radii (r/D0) and the larger sleeve diameter (D1/D0) relate to the larger pressure drop and smaller Mach raise. Moreover, the n stages achieve n-level pressure drop and Mach raise. The smaller plate diameter (D2/D0) and the larger pressure ratio (π) relate to larger pressure drop and smaller Mach raise. Finally, optimized design of throttling components is achieved with plate diameter D2/D0 = 0.4, plate stage n = 3, sleeve diameter D1/D0 = 0.8 and chamfer radii r/D0 = 0.1.

Suggested Citation

  • Chen, Fu-qiang & Jin, Zhi-jiang, 2021. "Throttling components effect on aerodynamic performance of superheated steam flow in multi-stage high pressure reducing valve," Energy, Elsevier, vol. 230(C).
    • Handle: RePEc:eee:energy:v:230:y:2021:i:c:s0360544221010173
    DOI: 10.1016/j.energy.2021.120769
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    References listed on IDEAS

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    1. Asim, Taimoor & Oliveira, Antonio & Charlton, Matthew & Mishra, Rakesh, 2019. "Improved design of a multi-stage continuous-resistance trim for minimum energy loss in control valves," Energy, Elsevier, vol. 174(C), pages 954-971.
    2. Sonawat, Arihant & Kim, Seung-Jun & Yang, Hyeon-Mo & Choi, Young-Seok & Kim, Kyung-Min & Lee, Yong-Kab & Kim, Jin-Hyuk, 2020. "Positive displacement turbine - A novel solution to the pressure differential control valve failure problem and energy utilization," Energy, Elsevier, vol. 190(C).
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    Cited by:

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    3. Li, Naian & Wan, Shengjun & Du, Wei & Zhang, Shangyi & Luo, Lei, 2024. "Effects of the geometrical features of flow paths on the flow behaviour of a multi-stage labyrinth pressure reducing valve throttling components," Energy, Elsevier, vol. 296(C).
    4. Zhang, Zhi & Sun, Baojiang & Wang, Zhiyuan & Mu, Xiaojie & Sun, Dalin, 2023. "Multiphase throttling characteristic analysis and structure optimization design of throttling valve in managed pressure drilling," Energy, Elsevier, vol. 262(PB).

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