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http://dx.doi.org/10.5916/jkosme.2007.31.5.522

Performance Prediction Method of n Positive Displacement Turbine with 4-Lobe Helical Type Rotor  

Choi, Young-Do (한국해양대학교 산학협력단)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.31, no.5, 2007 , pp. 522-530 More about this Journal
Abstract
In order to extract small hydropower in the very low specific speed range of $n_s<10$, a Positive Displacement Turbine (PDT) has been proposed and steady performances have been determined experimentally. However, the suppression of large pressure fluctuation is inevitable for practical application of PDT. Therefore, present study adopted 4-lobe helical type robe to reduce the pressure fluctuation. The results show that 4-lobe helical type robe can be adopted to suppress the pressure fluctuation drastically. Moreover, efficiency and unit power of the turbine with newly proposed 4-lobe helical type lobe are higher than those of the turbine with 3-lobe straight type robe.
Keywords
Helical type rotor; Positive displacement turbine; Performance prediction method; Small hydropower;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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