Parabolic Trough Collector Performance in a Hot Climate

Abstract

AbstractKuwait receives annual total radiation of roughly 5,280 MJ/m2 with nearly 3,347 h of sunshine. The potential for reduction of greenhouse gas emissions motivates widespread of renewable energy systems. In the research reported in this paper, a numerical model is developed to study the effect of different collector parameters and operating conditions on the performance of parabolic trough solar collector (PTSC) in Kuwait climate. The proposed model considers all thermal losses which have been neglected in existing models. New equations were developed and used in the present model as well as reviewing the equations for convective heat transfer losses. The effects of heat conduction in the collector tube wall and mixed convection in the inner tube neglected in previous studies are included in the proposed model. In addition, a case study is presented to examine the feasibility of integrating renewable energy systems in existing buildings. Solar energy absorption system is considered in the research r...