A mathematical model which simulates the performance characteristics of reciprocating handpumps is presented. The model is based on basic fluid-mechanics principles and consists of volumetric and mechanical efficiency submodels.
Title | Mathematical simulation of reciprocating handpump performance |
Publication Type | Journal Article |
Year of Publication | 1991 |
Authors | Mbigha, CC, Nalluri, C |
Pagination | p. 281-290: 10 fig., 1 tab. |
Date Published | 1991-10-01 |
Keywords | efficiency, hand pumps, hydraulics, laboratory testing, models |
Abstract | A mathematical model which simulates the performance characteristics of reciprocating handpumps is presented. The model is based on basic fluid-mechanics principles and consists of volumetric and mechanical efficiency submodels. The volumetric efficiency submodel considers loss of discharge as the leakage around the piston periphery and the mechanical efficiency submodel uses flow-resistance theory to predict the energy expended in lifting water. Pump-performance predictions using the model agree with laboratory measurements for parameters such as stroke length and speed, and delivery head. Both a piston-type and a 'lotus-valve' type handpump were used to test the model. |
Notes | 16 ref. |
Custom 1 | 232.2 |