In this communication, an attempt has been made to study the effect of absorptivity, water depth and bottom heat loss coefficient on the evaporative heat transfer coefficient. The variation of hourly and daily yield with basic variable parameters has been studied. Numerical computations have been carried out for a typical day of Delhi climate. On the basis of numerical results, it is observed that the evaporative heat transfer is a strong function of water depth and absorptivity of the basin as expected.
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