Experimental and numerical measurement of the thermal performance for parabolic trough solar concentrators

Abstract

Parabolic trough mirror plants are a popular design for the conversion of solar energy to electricity via thermal processes. The receiver unit (RU) for absorbing the concentrated solar radiation is limited to maximum temperature (580 degree Celsius) and is responsible for efficiency losses mainly via thermal radiation. We built a RU in the laboratory to study the thermal performance for different designs and we companied this study with a mathematical module implemented on a simulation code. In this work, the simulation and the first set of experiments show a good agreement, validating the applicability of the code.