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An investigational analysis upon heat exchange and friction misfortunes was led on the roughened rectangular solar-oriented air heater channel. The counterfeit roughness as W-shaped ribs utilizing symmetrical gaps alongside staggered ribs was made using round wires on one side of the wall as it were. The scope of parameters was viewed as using Reynolds number (Re) from 4000 to 14000, relative roughness pitch (P/e) 10–14, relative gap width (g/e) 0.5–2.0, relative staggered rib length (w/e) 1.5–6.0, relative staggered pitch (p/P) 0.45–0.75, number of gaps (n) 1–4, approach angle (α) 60°, relative roughness height (e/D h ) 0.0423, duct aspect ratio (W/H) 10. Utilizing these parameters in the picked range, the far-reaching examination of the framework has been practised. The most extreme growth in Nusselt number proportion was recorded 4.10 practically equivalent to Re = 12000, P/e = 12, g/e = 1, w/e = 4.5, p/P = .65 and n = 2. THEP was likewise determined and the most extreme improvement was observed to be 3.24.

Investigational analysis of roughened solar air heater channel having W-shaped ribs with symmetrical gaps along with staggered ribs