J.Ganesh Moorthy M.E
1 PG Scholar, Solar Energy Anna University, Trichy, India.
1 PG Scholar, Solar Energy Anna University, Trichy, India.
Solar water heater is the
most popular means of solar energy utilization because of technological
feasibility and economic attraction compared with other kinds of solar energy
utilization. The system can supply hot water at 50 oC and 80 oC which
can be used for both domestic and industrial purposes. Heat transfer
enhancement in solar devices is one of the key issues of energy saving and
compact designs. Nanofluids are the new kind of heat transfer fluid containing
a very small quantity of nano particles that are uniformly and stably suspended
in fluids. Nanofluids are high thermal conductivity than conventional fluids.
Numerical model of the solar water heating system has been developed by using
water and nanofluid as a base fluid. The objective of this paper is to
improve the efficiency of solar water heating system by using nanofluids as a
working fluid and improving the efficiency of solar water heater than the water
as a working fluid by theoretically. The theoretical calculations were made and
the result shows that the 10.88% of an improved efficiency is observed at .025%
volume fraction of the nanofluids.
