Advances on solar thermal cogeneration processes based on thermoelectric devices: A review

摘要

This review reports the most recent developments of solar thermoelectric generators and their promising integration options within various solar thermal collectors and processes. These combined structures provide thermal energy with additional electric power which implies better harnessing of solar irradiation. First, fundamentals of combined solar thermal conversion systems including thermoelectric generators are presented along with a basic mathematical formulation of the physical problem. The main assessment indexes used to evaluate the performance of such systems are as well summarized. Recent investigations related to the utilization of thermoelectric generators in the various solar thermal stationary and concentrating collectors and processes are reviewed and analyzed. A deep analysis of the major technical, operational and financial challenges is provided as well as research directions related to the development of high-efficiency solar thermoelectric hybrid configurations.