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On the performance enhancement of thermo-compressor and steam turbine blade cascade in the presence of spontaneous nucleation

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  • Ahmadpour, A.
  • Noori Rahim Abadi, S.M.A.
  • Meyer, J.P.

Abstract

In the present study, increasing the performance of thermo-compressors and steam turbines by volumetric cooling and inlet superheating is addressed. The efficacies of these two proposed methods are assessed using a numerical code developed based on Eulerian-Eulerian description of the two-phase fluid flow accounting for the spontaneous nucleation. The results show that maximum increase of 2.8% in entrainment ratio and 4.2% increase in isentropic efficiency are achieved for thermo-compressor and steam turbine blade cascade respectively. As the result, flow passage cooling and increasing the superheating level at the flow inlet could be considered as reliable techniques for wetness loss reduction in industrial apparatuses.

Suggested Citation

  • Ahmadpour, A. & Noori Rahim Abadi, S.M.A. & Meyer, J.P., 2017. "On the performance enhancement of thermo-compressor and steam turbine blade cascade in the presence of spontaneous nucleation," Energy, Elsevier, vol. 119(C), pages 675-693.
    • Handle: RePEc:eee:energy:v:119:y:2017:i:c:p:675-693
    DOI: 10.1016/j.energy.2016.11.022
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    References listed on IDEAS

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    1. Ji, MyoungKuk & Utomo, Tony & Woo, JuSik & Lee, YongHun & Jeong, HyoMin & Chung, HanShik, 2010. "CFD investigation on the flow structure inside thermo vapor compressor," Energy, Elsevier, vol. 35(6), pages 2694-2702.
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    3. Halama, Jan & Hric, Vladimír, 2016. "Numerical solution of steam flow in a nozzle using different non-equilibrium condensation models," Applied Mathematics and Computation, Elsevier, vol. 272(P3), pages 657-669.
    4. Wang, Xiaodong & Dong, Jingliang & Li, Ao & Lei, Hongjian & Tu, Jiyuan, 2014. "Numerical study of primary steam superheating effects on steam ejector flow and its pumping performance," Energy, Elsevier, vol. 78(C), pages 205-211.
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    Cited by:

    1. Yang, Yan & Zhu, Xiaowei & Yan, Yuying & Ding, Hongbing & Wen, Chuang, 2019. "Performance of supersonic steam ejectors considering the nonequilibrium condensation phenomenon for efficient energy utilisation," Applied Energy, Elsevier, vol. 242(C), pages 157-167.
    2. Aliabadi, Mohammad Ali Faghih & Lakzian, Esmail & Khazaei, Iman & Jahangiri, Ali, 2020. "A comprehensive investigation of finding the best location for hot steam injection into the wet steam turbine blade cascade," Energy, Elsevier, vol. 190(C).
    3. Vatanmakan, Masoud & Lakzian, Esmail & Mahpeykar, Mohammad Reza, 2018. "Investigating the entropy generation in condensing steam flow in turbine blades with volumetric heating," Energy, Elsevier, vol. 147(C), pages 701-714.
    4. Han, Xu & Zeng, Wei & Han, Zhonghe, 2019. "Investigation of the comprehensive performance of turbine stator cascades with heating endwall fences," Energy, Elsevier, vol. 174(C), pages 1188-1199.
    5. Kler, Alexander & Zakharov, Yuri, 2017. "Joint optimization of power plant cycle parameters and gas turbine flow path parameters with blade airfoils represented by cubic splines," Energy, Elsevier, vol. 137(C), pages 183-192.

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