Heat transfer analysis of a cylindrical receiver for a linear Fresnel System

The present work is carried out in the frame of the research project called CHAMS-1. This project, the first of its kind in Morocco, is supported by IRESEN (Institute of Research on Solar and New Energy-Morocco). It is dedicated to the conception and design of a new low cost CSP system based on a new generation of linear Fresnel technology. In this context, we are currently developing a complete code package for simulating linear Fresnel optical systems and heat and masse transfer processes in the collector tube. This will allows us to predict the response of all components of the solar field according to global efficiency. In this paper, we will focus in modeling heat transfer phenomena on a collector constituted by a secondary reflector, transparent cover and tubular absorber. The calculations are achieved by coupling the thermal model to Monte-Carlo ray tracing algorithm to obtain power generated over the receiver tube. Temperature of receiver surfaces, thermal and optical efficiency of the collector is checked versus time and geometrical parameters to enhance the global efficiency.