Enhancement of Heat Transfer in Solar Air Heater

Bys: Singh, Gurpreet, Singh Gill, Kulbir, Singh, Mandeep

An investigation is done in relation to heat transfer enhancement in solar air heaters with circular V-shaped down ribs. Ribs were attached to the absorber plate, having an angle of attack (α= 60 ⁰). The ratio of rib height to hydraulic diameter (e/D) was 0.047, while the range of rib pitch-to-height ratio was (P/e = 4, 8, and 16) mm for three different sheets, with the Reynolds number ranging from (Re = 1825-7759). The roughened wall of the duct is heated by direct sunlight, while the remaining three walls are insulated. The concept of a V-shaped rib was developed to capitalise on this span-wise variation of heat transfer for inclined ribs. The V-shaped rib reduced the span-wise variation of heat transfer and increased average heat transfer.

• Format: Paperback
• Language: English
• ISBN: 6206178897
• ISBN13: 9786206178897
• Release Date: June 2025
• Publisher: LAP Lambert Academic Publishing
• Length: 104 Pages
• Weight: 0.33 lbs.
• Dimensions: 0.3" x 6.0" x 9.0"