K. Sumathy et al., EFFECT OF DISCHARGE HEAD ON THE PERFORMANCE OF A SOLAR WATER PUMP, International journal of energy research, 18(6), 1994, pp. 623-629
Presented in the paper is a brief description of the solar thermal wat
er pump and its operation. The performance of such a solar water pump
working on a flat-plate collector of exposed area of 1 m2 is studied f
or three different discharge heads, namely 6, 8 and 10 metres. The the
rmodynamic analysis reveals that, while the number of cycles and the q
uantity of water pumped per day decrease with an increase in the disch
arge head the overall efficiency increases.