Abstract: A solar dish collector has been designed, fabricated
and tested for its performance on 10-03-2015 in Salem, Tamilnadu,
India. The experiments on cooking vessels of coated and un-coated
with 5 Liters capacity have been used for cooking Rice. The results
are shown in graphs. The solar cooker is always capable of cooking
food within the expected length of time and based on the solar
radiation levels. With minimum cooking power, the coated pressure
cooker of 5 Liters capacity cooks the food at faster manner. This is
due to the conductivity of the coating material provided in the cooker.
Abstract: This study presents the improvement of thermal
performance of heat pipe using copper nanofluid with aqueous
solution of n-Butanol. The nanofluids kept in the suspension of
conventional fluids have the potential of superior heat transfer
capability than the conventional fluids due to their improved thermal
conductivity. In this work, the copper nanofluid which has a 40 nm
size with a concentration of 100 mg/lit is kept in the suspension of
the de-ionized (DI) water and an aqueous solution of n-Butanol and
these fluids are used as a working medium in the heat pipe. The study
discusses about the effect of heat pipe inclination, type of working
fluid and heat input on the thermal efficiency and thermal resistance.
The experimental results are evaluated in terms of its performance
metrics and are compared with that of DI water.