Abstract
Water pumps, which usually require fuels or power, are for carrying water from water sources to a facility, generally a household or a farm in the countryside. The present study consists of conducting an experimental validation of a mathematical model that was developed in a previous work for simulating the functioning of a new form of the hydraulic ram pump, also known as the hydram pump. This new configuration differs from the conventional ones in that a springs system is incorporated. As this type of pump uses only water energy to operate, thanks to an overpressure called the «water hammer» phenomenon, the experiment could be carried out on a small scale in Antananarivo, Madagascar. Hence, this paper opens new research perspectives on the hydram pump. The recalibration of the model according to its experimental validation allows the dimensioning of any system, in any field, using this type of water pump.
Highlights
The hydraulic ram pump can carry up water over a certain height between the watercourse and end-users (Sengupta and Narula, 2013)
This paper presents the experimental validation of a mathematical model that was developed in a previous study (Rajaonison and Rakotondramiarana, 2019) for simulating the operation of a hydram pump equipped with a springs system
That implies the experimental (Table 2 first column) and the adjusted (Table 2 second column) values of the waste valve stroke. The objective of such recalibration is to have the pumped water flow values given by the model best approach those obtained experimentally
Summary
The hydraulic ram pump can carry up water over a certain height between the watercourse and end-users (Sengupta and Narula, 2013). Unlike other water pumps, the hydram pump uses only water energy to operate. This is possible due to an overpressure called « water hammer » phenomenon. It results from the sudden stop of moving water having taken a certain velocity through a supply pipe. It could be harmful to pipelines, the overpressure pushes up water through a delivery pipe. The pump studied in the present work is different from the others as a springs system equips both the waste valve and the delivery valve. At our state of knowledge, a scientific experimental study of this pump named the RASETA pump (Rasetarivelo, 2004) has never been done anteriorly
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