This paper investigates the feasibility of pumpinq up water from a water well using a temperature difference in the environment. A device usable for water lifting i9 the heat pressure pump. The evaporator-condenser cycle will expand and compress the air inside a flexible balloon which will drive water from the well to a higher level as required. It is proposed to build several heat pumps with different designs and measure the thermal efficiencies of each type. A parametric experimental program will be run on each design and the optimum conditions and design configuration will be examined.
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