کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5146239 1497348 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of blade wrap angle in hydraulic turbine with forward-curved blades
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Effect of blade wrap angle in hydraulic turbine with forward-curved blades
چکیده انگلیسی
Hydraulic turbine is used for recovering power by using reverse running pump. In order to improve the efficiency of turbine working condition, the impeller with forward-curved blades was applied instead of the impeller with backward-curved blades. The effects on the performance of hydraulic turbine and inner flow character with different blade wrap angles were studied by the method of numerical simulation. The results show that: with the blade wrap angle growth, the maximum efficiency increases, but the range of the flow rate at the high efficiency decreases rapidly; the flow state of hydraulic turbine which in small flow area obtains a remarkable improvement; the flow within the impeller improves and the friction loss increases; the hydraulic loss in the small flow area inside the impeller declines but it grows in the large flow area.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 29, 20 July 2017, Pages 18709-18717
نویسندگان
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