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Regenerative liquid ring pumps review and advances on design and performance

Author

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  • Karlsen-Davies, N.D.
  • Aggidis, G.A.

Abstract

The regenerative liquid ring (RLR) pump is a type of rotodynamic machine which has the ability to develop high heads at relatively low flow rates in only one impeller stage. Although the exact principle of operation of this type of pump has been a phenomenon not fully understood, it has nevertheless been widely applied for over a century in areas of liquid pumping. Despite the low efficiency, RLR pumps have several advantages over other turbomachines with similar tip speed due to relatively low manufacturing costs, simplicity, high reliability, enhanced priming behaviour and can in many applications offer a more efficient alternative. Efficiency improvements are key to reducing energy consumption and ultimately combatting the global climate change. This paper offers an extensive review into the development, performance challenges and design improvements of RLR pumps in order to provide some useful insight on future research and next steps, with a particular focus on improving efficiency throughout the pump life cycle.

Suggested Citation

  • Karlsen-Davies, N.D. & Aggidis, G.A., 2016. "Regenerative liquid ring pumps review and advances on design and performance," Applied Energy, Elsevier, vol. 164(C), pages 815-825.
    • Handle: RePEc:eee:appene:v:164:y:2016:i:c:p:815-825
    DOI: 10.1016/j.apenergy.2015.12.041
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    Citations

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    Cited by:

    1. Strušnik, Dušan & Marčič, Milan & Golob, Marjan & Hribernik, Aleš & Živić, Marija & Avsec, Jurij, 2016. "Energy efficiency analysis of steam ejector and electric vacuum pump for a turbine condenser air extraction system based on supervised machine learning modelling," Applied Energy, Elsevier, vol. 173(C), pages 386-405.
    2. Seok-Yun Jeon & Joon-Yong Yoon & Choon-Man Jang, 2019. "Optimal Design of a Novel ‘S-shape’ Impeller Blade for a Microbubble Pump," Energies, MDPI, vol. 12(9), pages 1-17, May.
    3. Feroskhan M. & Sreekanth M. & Karunamurthy K. & Sivakumar R. & Nazaruddin Sinaga & T. M. Yunus Khan, 2022. "Regression-Analysis-Based Empirical Correlations to Design Regenerative Flow Machines," Energies, MDPI, vol. 15(11), pages 1-23, May.
    4. Moradi, Ramin & Habib, Emanuele & Bocci, Enrico & Cioccolanti, Luca, 2020. "Investigation on the use of a novel regenerative flow turbine in a micro-scale Organic Rankine Cycle unit," Energy, Elsevier, vol. 210(C).
    5. Seok-Yun Jeon & Joon-Yong Yoon & Choon-Man Jang, 2018. "Bubble Size and Bubble Concentration of a Microbubble Pump with Respect to Operating Conditions," Energies, MDPI, vol. 11(7), pages 1-13, July.

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