Performance of a solar water pump with ethyl ether as working fluid

This paper presents the description and operation of a solar-powered thermal water pump with ethyl ether as the working fluid. A simple flat-plate collector with an exposed area of 1 m2 is employed to pump water ranging from 700–1400 l/day depending upon the lift (6–10 m). Such a pumping system could achieve efficiency of about 0.42–0.34%.