Comprehensive Review of Nanoparticle-Based Coating's Effect on Solar Energy Harvesting System Efficiency

Nowadays, solar energy is used for various applications due to the non-emission of any harmful gases like the greenhouse effect or carbon dioxide gases. Solar energy harvesting systems can convert solar energy into heat energy for which solar collectors have been widely used. The efficiency of the solar collector depends on many factors, like the coating on the flat plate solar collector, nanofluid, insulation, the thickness of the glass transmission in the emission of the glass, convection between the air gaps and conduction between the plate & connector. Nanoparticles and nanofluids have good thermal properties to increase the efficiency of solar collectors. A variety of coatings for absorber plates and fluid tubes were examined in this study to determine their impact on the thermal performance of solar energy harvesting systems. According to the results, other researchers have found that solar harvesting systems with coatings have far better thermal performance. This review seeks to encourage more study and improvement in this fascinating topic by offering a comprehensive grasp of the fundamental ideas and current developments.