A SINGLE THREE PARABOLIC TROUGH COLLECTOR THERMAL EFFICIENCY AND PERFORMANCE

Abstract

A bank of three Parabolic Trough Collectors in the same
plane maintained to face normal incidence of solar
radiation in Iraq at (34°35'N, 43°37'E). The influence of
rim angle, effective length, and reflector width is being
taking care off. A two flow regimes experimented for
0.03 and 0.06 kg/sec in a coated S.S. Steel pipe
unshielded. The results showed a remarkable behavior in
term of decreasing temperature difference to have an
increase in efficiency but with regard to the increasing
mass flow rate having a decrease of the losses an increase
in efficiency.