Theoretical and Experimental Analysis of Flat Plate Collector

  • Raed Sabri Hameed Technical College – Basrah
Keywords: A Area, m 2, h convection heat transfer coefficient, W m -2 K -1, h w wind loss coefficient, W m -2 K -1, k conductivity W m -1 K -1, N number of glass cover, L length of absorber pipes, m, Q Energy, W, T Temperature, ̊ C, t Thickness, m, U l Overall loss coefficient, W m -2 K -1, U t Overall top loss coefficient, W m -2 K -1, U Overall loss coefficient for the heat loss from back to ambient, W m -2 K -1, U e Overall loss coefficient for the heat loss from edge to ambient, W m -2 K -1

Abstract

In this work a flat plate collector was designed and manufactured with dimension of
(100cm×160cm×20cm) and analyzed experimentally and theoretically. The designed FPC
consist of Nine pipes with (2.223cm in diameter with 140cm long) welded above the plate to
act as heat removal fluid passage ways. The flow inside the pipes can takes place by forced
convection. However, certain energy absorbed by the plate is lost to atmosphere due to higher
temperature of the plate. Effect of plate temperature on efficiency and top loss coefficient
studied for different wind velocities and different air temperature. Effect of emissivity of
absorber plate on top loss coefficient was estimated.
The obtained result showed that the efficiency of FPC increase by 3% with the increase
in ambient temperature by 8 ̊ C, the efficiency decrease with the increase in plate temperature
and the top loss coefficient increase when the emissivity of absorber plate increase and when
wind velocity increase. The comparison of result showed a good agreement
Published
2019-04-27
Section
Articles