Development of a Positive Displacement Micro-Hydro Turbine
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- PHOMMACHANH Dousith
- Division of Systems Integration, Graduate School of Engineering, Yokohama National University
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- KUROKAWA Junichi
- Division of Systems Research, Faculty of Engineering, Yokohama National University
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- CHOI Young-Do
- Division of Systems Research, Faculty of Engineering, Yokohama National University
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- NAKAJIMA Noboru
- Engineering Group, CATV Products Division, URO ELECTRONICS IND. CO., LTD.
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Abstract
The objective of this study is to develop an efficient turbine that can be used to extract micro hydropower potential of a water supply system. For the case of high head and critical low flow rate range of micro hydropower resources, it requires very low specific speed turbines which are lower than conventional impulse turbines’ specific speed. For this purpose, we develop a new Positive Displacement Turbine (PDT). In order to reveal the performance characteristics of the new turbine, one conventional impulse turbine, which is used for automatic water faucet system, was tested for comparison. The test results show that the PDT was much more efficient than a conventional turbine and it can sustain high efficiency under the wide range of operating conditions. In addition, the efficiency of the PDT is much improved when reducing its side clearance. The pressure pulsations at the inlet and outlet of the PDT can be considerably minimized by using simple dampers.
Journal
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- JSME International Journal Series B
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JSME International Journal Series B 49 (2), 482-489, 2006
The Japan Society of Mechanical Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390282679651670144
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- NII Article ID
- 110004717704
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- NII Book ID
- AA10888815
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- ISSN
- 13475371
- 13408054
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- NDL BIB ID
- 7903148
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed