Heat Transfer and Friction Characteristics of an Artificially Roughened Solar Air Heater

In the present work improvement of warmth conveying rate by creating harshness underside of onlooker surface in sun-powered air warmer has been explored. CFD examine has been done, to appraise warm course through convection and grinding factor in SAH pipe in which symmetrical triangular formed transverse rib unpleasantness is utilized. Computational outcomes are accomplished utilizing CFD apparatus Ansys-Fluent. The computational area has a width five times of stature (W/H = 5), relative unpleasantness tallness (e/D) of 0.042, and vertical projection (e) is 1.4 mm. The separation between two back to back ribs (P/e) and Reynolds numbers (Re) are in the scope of 7.14-17.86 and 3800-18,000 separately. The powerful scope of working parameters unpleasantness on Nusselt no. (Nu) and Friction factor (f) is watched and the result is exhibited to make an examination with the smooth pipe of a sun-based air radiator. The most extreme value of Nu and f in this present work are accomplished s 2.94 and 3.27 individually.