Analisis Pengaruh Tinggi Tabung Udara Terhadap Debit Dan  Efisiensi Pompa Hidram

This study aims to analyze the effect of air tube height variation on the pumped water

discharge (delivery head) and hydraulic efficiency of a hydram pump. A hydram pump is

an autonomous water pumping technology that utilizes the potential energy of water flow

(water hammer principle) without requiring an external energy source (electricity or fuel).

However, the performance of the pump is greatly influenced by the dimensions of its

components, one of which is the height of the air tube. The research was conducted using

an experimental method by designing and testing a prototype of a hydram pump at a fixed

water drop height (input head) and lift height (delivery head). The independent variable

tested was three variations in air tube height (60 cm, 80 cm, and 100 cm). The test was

conducted by measuring the water inflow (Q_input), water outflow (Q_waste), and pumped

water flow (Q_output) for each variation in air tube height. The experimental results show

that the air tube height variable has a significant effect on the pumped water flow rate and

pump efficiency. An increase or decrease in the height of the air tube will affect the

compression of air inside it, which in turn affects the thrust force of water to the delivery

pipe. It was found that there is an optimal value for the height of the air tube that produces

the highest pumped water flow and maximum hydraulic efficiency at certain input head

conditions. In conclusion, determining the height of the air tube is crucial in hydram pump

design. Proper adjustment of the air tube height is necessary to maximize pump

performance, making it an effective and sustainable solution for water supply in remote

areas without access to electricity