Transcription of HYDRAULIC TURBINES
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HYDRAULIC TURBINES
Hydraulics and HYDRAULIC MachinesD r . M . N . S h e s h a P r a k a s h , P r o f e s s o r , J . N . N . Co l l e g e o f E n g i n e e r i n g , S h i m o g a1 HYDRAULIC TURBINESI n t r o d u c t i o n :T h e d e v i c e w h i c h c o n v e r t s h yd r a u l i c e n e r g y i n t o m e c h a n i c a l e n e r g yo rv i c e v e r s a i s k n o w n a sH y d r a u l i c M a c h i n e h e h yd r a u l i c m a c h i n e sw h i c h c o n v e r t h yd r a u l i c e n e r g y i n t o m e c h a n i c a l e n e r g y a r e k n o w n a sT u r b i n e sa n d t h a t c o nv e r t m e c h a n i c a l e n e r g y i n t o h yd r a u l i c e n e r g y i sk n o w n a sP u m p s.
(i) Hydraulic Efficiency: ( h) It is the ratio of the power developed by the runner of a turbine to the power supplied at the inlet of a turbine. Since the power supplied is hydraulic, and the probable loss is between the striking jet and vane it is rightly called hydraulic efficiency. If R.P. is the Runner Power and W.P. is the Water Power
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