Siddiqui, M.A.
July 1997
Fuel and Energy Abstracts, vol 38-4, p. 243
In order to obtain experimental data, studies on heat transfer and the resulting fluid flow through the collector tubes of a closed loop thermosyphonic solar water heater have been conducted at Aligarh. The data, in terms of temperatures, were collected for hot water withdrawal rates of 0, 50 and 60 l/h on various days. The local and length averaged heat transfer coefficients were calculated for some tubes on the collector using the global radiation recorded near the heater. Various dimensionless parameters governing the heat transfer and the fluid flow were subsequently estimated. The collector efficiency and flow factors were made the bases for selecting the data and standardisation of the system under study.
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