【摘 要】
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This paper illustrated a way to increase pressure ratio and improve efficiency with addition of multi splitters in centrifugal impeller with a vaneless diffuser in order to increase the pressure ratio
【机 构】
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College of Power and Energy Engineering,Harbin Engineering University,Harbin 150001,China
论文部分内容阅读
This paper illustrated a way to increase pressure ratio and improve efficiency with addition of multi splitters in centrifugal impeller with a vaneless diffuser in order to increase the pressure ratio and analyze effects of the location of the splitter between two main blades,keeping all flow conditions same as experimentally validated impeller.Back swept impeller studied through experiment was modified and a sample impeller was designed with big splitter close to the suction surface of main blade and smaller splitter close to pressure surface.The overall performance of impeller is improved with the addition of big splitter close to suction surface of main blade and small splitter close to pressure surface of main blade due to less separation and lower pressure loss.It was observed that total pressure ratio is increased from 4.1 to 4.4 with 2 points increase in efficiency with the addition of multi splitter blades.
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