Innovations in Solar Thermal Technologies, Including Improved Ingredients and the Integration of Hybrid Systems

Abstract

The increasing demand for sustainable energy solutions has intensified research into solar thermal systems, which play a critical role in harnessing renewable solar energy for various applications. This study explores innovative methods to improve the thermal efficiency of solar thermal systems, focusing on advanced materials, optimized fluid dynamics, energy storage solutions, and hybrid system architectures. The primary objective is to identify strategies that enhance energy absorption, transfer, and storage, thereby increasing the overall performance and cost-effectiveness of solar thermal energy generation. Key findings include the significant impact of advanced materials such as Graphene and Carbon Nanotubes (CNTs), which exhibit up to 30% higher heat absorption efficiency compared to traditional metals like Copper and Aluminium. Nanofluids, especially those with Copper Oxide and Alumina nanoparticles, were found to improve heat transfer efficiency by 20-25% over conventional fluids like water. Additionally, the study examined Thermochemical energy storage systems, which demonstrated superior energy retention, with 98% efficiency, compared to traditional Phase-Change Materials (PCMs). The integration of hybrid solar thermal systems combining Photovoltaic (PV) panels and battery storage resulted in an 18-20% increase in overall system efficiency. The results suggest that the adoption of these advanced materials and hybrid systems can significantly enhance the efficiency, scalability, and economic viability of solar thermal technologies, contributing to the global transition toward clean energy. This research underscores the importance of continuing innovation in solar thermal energy and emphasizes its potential for widespread application in both residential and industrial sectors.