Comparison of real and theoretical data in high temperature GaSb cell thermophotovoltaic systems

In this study, it is aimed to compare real and theoretical data in high temperature GaSb cell thermophotovoltaic systems. The thermophotovoltaic system can be defined as a system that converts the waste heat energy emitted from the heat sources into electrical energy at high temperature. The thermophotovoltaic energy conversion system consists of heat source, selective emitter, filter and photovoltaic cell module.The temperature parameters used are cell temperature and source temperature. With these graphs, energy efficiency, fill factor, effect of open circuit voltage and short circuit current values have been determined. While the efficiency value of the GaSb thermophotovoltaic cell systems was calculated, the radiation source temperature values have been taken in increments of 300 K between 1300 K and 3100 K. The theoretical and real datas obtained from the analysis have been compared. In the theoretical (lossless) analysis, the optimum energy conversion efficiency value of GaSb solar cell structure was found to be 33.14% while it was found to be 21.5763% in real (lossy) analysis. As a result of the obtained results, opinions about the feasibility, efficiency and development of thermophotovoltaic energy conversion systems have been stated and suggestions are presented.