Transient exergy analysis for the performance of cylindrical parabolic solar collector


Eskin N., Kilic A.

International Conference on Efficiency, Costs, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 95), İstanbul, Turkey, 11 - 14 July 1995, pp.566-573 identifier

  • Publication Type: Conference Paper / Full Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.566-573

Abstract

In this study, the cylindrical parabolic concentrating solar collector that has been developed by MKEK (Makina Kimya Endustrisi Kurumu) for process heat generation, was analyzed through the first and second law of thermodynamics. They together help to define the optimum system that satisfies the imposed thermal and economical constraints and minimizes exergy loss. In an unsteady state the analysis considers the thermal masses of the absorber pipe, pyrex cover and the working fluid of the system separately. The instantaneous exergetic efficiencies and energy efficiencies are compared for daily insolation and flow rates for the cylindrical parabolic collector that traces sun daily.