Investigation on Under-filing of impeller vanes to improve the Performance of Centrifugal Pump

  Manan B Raval,  Amit D Modi

Now a days centrifugal pump is used in many fields like agriculture, industrial, power plant, irrigation etc. Proper head and discharge is prime requirement of customer. Sometimes modification is applied in centrifugal pump for high head and discharge. Impeller trimming is the only alternate practical solution without changing impeller design, manufacturing and modification or purchase a new impeller. Impeller trimming is the best way to increase head and discharge. Sometimes it may happen that user require more head and discharge in existing purchased pump, at that time impeller trimming is best solution to increase head and discharge. Basically impeller trimming is the procedure to decrease diameter of impeller, under-filing, over filing. Under-filing which is one of the methods of trimming is used as a concept. Under-filing means to cut or give a radius at non pressure side vane tip of impeller. Under-file the impeller vanes with 1.0 mm,2.0 mm at non pressure side of radial closed impeller of centrifugal pump , the head and discharge of pump can be improved. CFD Analysis has performed on both existing and trimmed impeller with predefined mass flow rates. After CFD analysis, compared the results of both trimmed and existing impeller. For Validation CFD results are compared with practical experiments performed on Aarohi embedded system which is used to check head and discharge of pump.

Keywords- Under-filing, impeller, trimming, Head, Discharge

Unique Identification Number - IJEDR1704221
Page Number(s) - 1384-1391
Pubished in - Volume 5 | Issue 4 | December 2017
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Manan B Raval,  Amit D Modi,   "Investigation on Under-filing of impeller vanes to improve the Performance of Centrifugal Pump", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 4, pp.1384-1391, December 2017, Available at :http://www.ijedr.org/papers/IJEDR1704221.pdf