Abstract
Parabolic trough collectors are a well-established solar concentrating technology widely utilized for efficiently harnessing solar energy. The increasing demand for sustainable energy solutions has spurred extensive research into optimizing parabolic trough collector performance for diverse applications. This paper examines the fundamental principles of parabolic trough collectors and reviews advancements to improve their efficiency. The potential of parabolic trough collectors to harness solar energy efficiently and contribute to sustainable energy solutions motivates the exploration of innovative design and operational strategies. Additionally, enhancements to heat transfer structures, such as using volumetric absorption methods with nanofluids and metal foam in the receiver, significantly boost absorption and energy transfer. The method involves analyzing comparative studies that test various models, working fluids, and structural modifications in parabolic trough collector systems. Results highlight the potential of these advancements to increase thermal efficiency and overall energy output. The findings underscore the importance of parameter optimization in achieving superior parabolic trough collector performance. This review provides a comprehensive overview of current advancements, offering valuable guidance for future research and development in solar energy technologies.
