Study of two types of cylindrical absorber of a spherical concentrator

The main purpose of this work is the study of types of cylindrical canister with a spherical hub and our have two types of receptor, the first cylindrical closed and the second coil is a cylindrical Inside a receiver, we are particularly attached to the determination of operating characteristics, the temperature of the absorber, the various power and efficiency. The energy balance is used to determine the thermal characteristics of the absorber in order to calculate the temperature concentrated at the surface captor, in the first absorber, the heat equation is solved by implicit finite difference method and the second from the power output determining a temperature difference between the edges of the coil. The comparison of numerical results with those obtained through an experimental study conducted in parallel, showing good reliability of the computer code developed.