CFD ANALYSIS OF WATER RING VACUUM PUMP OF 904 SERIES FOR DIFFERENT OPERATING PARAMETERS

Abstract

With increasing demand of vacuum pump also require high performance of pump demanded by market.
Vacuum pumps to give their function properly but many vacuum pumps not give work properly as per requirement just
because of poor design of vacuum pump. So design of pump being changed to improve function, but it is costly and time
consuming using experimental work. So CFD analysis use for this purpose.
The main objective of this project is to improve vacuum level of water ring vacuum pump. In Fine tech engineering ,
during testing process of water ring vacuum pump see that in WRVP the vacuum level is very low as per requirement and
therefore efficiency is low.
To improve the efficiency of SV-20water ring vacuum pump, Computational Fluid Dynamics analysis is one of the
advanced tools used in the pump industry. A detailed CFD analysis is used to predict the flow pattern inside the impeller
which is an active pump component. From the results of CFD analysis, vacuum level of the impeller is justified and
validated with experiment result here with very low deviation in result of 2.24%. Now modified impellers are modeled
using CAD modeling software. Here we changed thickness of blade, inlet and outlet angle of impeller based on empirical
relation and literature. Here 11 modified impellers are modeled. These models are analyzed individually using CFD
analysis to find the performance of the modified impeller WRVP. By using CFD analysis impellers with the improved
value of vacuum level 485.88 mm of hg vacuum get and by means improved efficiency achieve.