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Pumps as turbines for efficient energy recovery in water supply networks

Author

Listed:
  • Kramer, M.
  • Terheiden, K.
  • Wieprecht, S.

Abstract

The present work aims to enhance the energy efficiency of water supply networks by investigating technical and economical feasibility of energy recovery plants at low installed capacities. A cost effective stainless steel machine is investigated in pump and turbine operation and established conversion methods are used for predicting the best efficiency point of the turbine. The obtained results show a reasonable agreement of the BEP, but experimental investigations are still indispensable for a determination of complete Q-H-characteristics.

Suggested Citation

  • Kramer, M. & Terheiden, K. & Wieprecht, S., 2018. "Pumps as turbines for efficient energy recovery in water supply networks," Renewable Energy, Elsevier, vol. 122(C), pages 17-25.
    • Handle: RePEc:eee:renene:v:122:y:2018:i:c:p:17-25
    DOI: 10.1016/j.renene.2018.01.053
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    References listed on IDEAS

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    1. Bozorgi, A. & Javidpour, E. & Riasi, A. & Nourbakhsh, A., 2013. "Numerical and experimental study of using axial pump as turbine in Pico hydropower plants," Renewable Energy, Elsevier, vol. 53(C), pages 258-264.
    2. Jain, Sanjay V. & Patel, Rajesh N., 2014. "Investigations on pump running in turbine mode: A review of the state-of-the-art," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 841-868.
    3. Yang, Sun-Sheng & Derakhshan, Shahram & Kong, Fan-Yu, 2012. "Theoretical, numerical and experimental prediction of pump as turbine performance," Renewable Energy, Elsevier, vol. 48(C), pages 507-513.
    4. Kramer, Matthias & Terheiden, Kristina & Wieprecht, Silke, 2015. "Optimized design of impulse turbines in the micro-hydro sector concerning air detrainment processes," Energy, Elsevier, vol. 93(P2), pages 2604-2613.
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