• Ajay Kambale
• Sudhakar Umale

In this paper, a 2D compound parabolic collector (CPC) numerical modelhas been developed on ANSYS 16.0 software to analyze the heat transfer phenomenon inside the CPC air cavity, which is used to design efficient solar collectors. A steady-state CFD simulation was done to analyze, the complex process of heat transfer by considering materials, fluid physical properties and boundary conditions at the walls of the CPC. Simulated results of the temperature distribution over the CPC surface and collector efficiency were validated with the experimental values from literature. To increase the thermal efficiency of the solar collector, the glass baffle was used as convection suppression device. The baffle of size of 40 mm × 3 mm was placed at four different positions above the receiver surface in the air cavity of CPC. The total heat losses from the receiver surface to the CPC air cavity and outer environment were obtained and collector efficiency was calculated. The percentage reduction of heat losses were observed as 4.19, 4.44, 5.4 and 9.36 for 15 mm, 10 mm, 5 mm and 1 mm respectively as compared to the original CPC without baffle arrangement. The baffle arrangement at position 1 mm showed maximum suppression to convection heat loss. The glass baffle ceased the passage of hot air inside and obstructs its circulation from receiver tube to CPC glass cover surfaces separating out the convection phenomenon. It also prevents the heat losses to the environment and increased the collector efficiency up to 88.78%.

CFD, Compound Parabolic Collector (CPC), Convection, Radiation.

"HEAT TRANSFER ANALYSIS IN COMPOUND PARABOLIC COLLECTOR: A CFD APPROACH", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.362-367, June 2019, Available :http://www.jetir.org/papers/JETIR1907P53.pdf

"HEAT TRANSFER ANALYSIS IN COMPOUND PARABOLIC COLLECTOR: A CFD APPROACH", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp362-367, June 2019, Available at : http://www.jetir.org/papers/JETIR1907P53.pdf