A Review on Application of Solar Stirling Engine

Abstract

The Stirling solar dish system has proven to be the most effective way to use solar energy to produce electricity. The need to improve total performance and minimise errors and costs is becoming an essential concern for scientists due to the growing commercialization of this innovation. Study on modelling, thermodynamic efficiency analysis, simulation studies and techno-economic research of Stirling solar dish engines has gained momentum in recent years.For performance study of dish-Stirling systems, several parameters such as concentration ratio, absorber temperatures, high temperatures, freezing temperatures, regenerator efficacy, working fluid, dead volume and average working pressure values are usually considered. Researchers have found that thermal efficiency improves by increasing the concentration ratio and absorber temperature. For an absorber temperature of 850K and a concentration ratio of 1300, the optimum thermal efficiency recorded for the dish-Stirling device is 32 per cent. While loses from regenerators tend to decrease overall efficiency.Energy and energy consumption for the dish-Stirling system were stated to be 17% and 19%, respectively, in which the recipient experienced substantial losses. For the receiver, nevertheless, thermal efficiency as strong as 84 percent could be achieved. A review of results reveals that, with relatively higher results, dish-Stirling innovation could cost-effectively generate power than most other renewable energy systems. In addition, the integration of hybridization and thermal storage has arisen as an especially desirable choice for the device to run more continuously.