Investigating & Improving the Drooping Curve of a Two-Stage Feed Pump
Abstract
A two-stage feed pump exhibited a drooping head-flow characteristic during its shop test. Impeller reworks were done to improve the drooping curve. CFD study was performed to examine the pump flow behaviour and a more stringent test procedure was implemented. The key lesson learnt from this case is not to overly push the efficiency of the pump at a single best efficiency point, but to have a more balanced design between achieving good pump efficiency and attaining a stable curve.
Description
Case StudySubject
Pumping machineryCollections
Citation
Bin Ng, Tzuu (2018). Investigating & Improving the Drooping Curve of a Two-Stage Feed Pump. Turbomachinery Laboratory, Texas A&M Engineering Experiment Station. Available electronically from https : / /hdl .handle .net /1969 .1 /174972.