Performance analysis of a counter-rotating tubular type micro-turbine by experiment and CFD

N. J. Lee*, J. W. Choi, Y. H. Hwang, Y. T. Kim, Y. H. Lee

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


Micro hydraulic turbines have a growing interest because of its small and simple structure, as well as a high possibility of using in micro and small hydropower applications. The differential pressure existing in city water pipelines can be used efficiently to generate electricity in a way similar to that of energy being generated through gravitational potential energy in dams. The pressure energy in the city pipelines is often wasted by using pressure reducing valves at the inlet of water cleaning centers. Instead of using the pressure reducing valves, a micro counter-rotating hydraulic turbine can be used to make use of the pressure energy. In the present paper, a counter-rotating tubular type micro-turbine is studied, with the front runner connected to the generator stator and the rear runner connected to the generator rotor. The performance of the turbine is investigated experimentally and numerically. A commercial ANSYS CFD code was used for numerical analysis.

Original languageEnglish
Article number042025
JournalIOP Conference Series: Earth and Environmental Science
Issue numberPART 4
Publication statusPublished - 2012
Externally publishedYes
Event26th IAHR Symposium on Hydraulic Machinery and Systems - Beijing, China
Duration: 2012 Aug 192012 Aug 23

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)


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