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Performance enhancement of centrifugal pump by minimizing casing losses using coating
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Performance enhancement of centrifugal pump by minimizing casing losses using coating
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Journal Article
Performance enhancement of centrifugal pump by minimizing casing losses using coating
2020
Overview
Present study focuses on the experimental and numerical investigation of the effect of surface roughness of casing and adhesive coating on the efficiency of centrifugal pump. It consists of two parts; in the first part, effect of coating centrifugal pump casing by ultra-smooth ceramic based coating on the efficiency of the centrifugal pump is investigated experimentally. In the second part, effect of change in surface roughness of casing is investigated numerically by using the CFD tool. The surface roughness of casing is modeled in terms of effective sand grain size parameters and investigated by solving Reynolds-averaged Navier–Stokes equation at volume mesh. Effects of three surface roughnesses, i.e., 100 μm, 200 μm and 300 μm, are investigated numerically. It is observed that surface roughness of casing has considerable effect on pump performance, and pump head decreases by 9.06–14.73% by change in surface roughness from 100 to 300 μm for different mass flow rates values. For same flow rate, centrifugal pump with coated casing produces more head than that of pump without coating. Coating casing with the ultra-smooth adhesive material results in maximum efficiency enhancement of 9.6%.
Publisher
Springer International Publishing,Springer Nature B.V
