1Assistant Professor, Department of Mechanical Engg., B.I.T., Sindri, India
2Professor, Department of Mechanical Engg., B.I.T., Sindri, India
3Professor, Department of Mechanical Engg., N.I.T., Jamshedpur, India
Online published on 24 October, 2017.
An experimental investigation has been carried out for a range of system an operating parameters in order to analyze the effect of friction factoron thermal performance of roughened flat-plate solar air heater. Duct has an aspect ratio W/H of 7, thickness 3mm, 4mm & 5mm; mass flow rate range from 0.02–0.045 kg/s and Reynolds Number (Re) range from to 5100 to 28000. A considerable increase in friction factor has been observed as thickness of roughened element increases.
Solar air, Heat transfer, Energy
