{"product_id":"gurpreet-singh-enhancement-of-heat-transfer-in-solar-air-heater-9786206178897","title":"Enhancement of Heat Transfer in Solar Air Heater","description":"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 (¿= 60 ¿). 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.","brand":"LAP LAMBERT Academic Publishing","offers":[{"title":"Default Title","offer_id":53623097033046,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/5829\/5382\/files\/product_image_9786206178897_1_8e44bdd1-12a2-424d-960f-ec3a34c58435.jpg?v=1781724729","url":"https:\/\/www.momoxbooks.com\/products\/gurpreet-singh-enhancement-of-heat-transfer-in-solar-air-heater-9786206178897","provider":"momoxbooks","version":"1.0","type":"link"}