ISSN Online: 2688-7231
ISBN Online: 978-1-56700-524-0
Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India
Numerical Analysis of a Flat Plate Solar Collector Integrated with Porous Copper Foam
As a possible alternative to limited fossil fuels, renewable
energy such as solar has stood out as an ideal candidate.
Commonly, the flat plate collector, is used to harness solar
energy, but it has limitations such as inherent thermal
resistance, deterioration of selective surface, and inefficient
heat dissipation. Recent studies corroborate the merit of
porous material in improving the performance of a flat-plate
collector. The porous material by virtue of its structural
arrangement provides an additional surface area within the
limited volume. In addition, the interconnected tortuous path
provided to working fluid, facilitates in improving thermal
mixing and heat transfer.
In this paper, a numerical study of a flat plate collector
integrated with porous copper foam is presented. The influence of the height of the porous foam, Darcy number (Da) and volumetric flow rate (V ) on the performance is resented. The optimum configuration is obtained when S = 1, where highest enhancement in Nusselt number (Nu) and bulk outlet temperature is obtained. Further, the numerical results also show lucrative improvement in Nu of about 5.7 % and 8.8 % with decrease in Da from 10-2 to 10-6 and increase in V from 0.25 L/min to 1 L/min.