Experimental investigation of photo-thermal analysis of blended nanoparticles (Al_2O_3/Co_3O_4) for direct absorption solar thermal collector

摘要

The demand of non-renewable energy resources is increasing due to increase of population. Due to the dependency on these resources the environment is degrading. In order to mitigate the effects on the environment, the usage of renewable energy resources is highly encouraged. Solar energy is the renewable energy, which is freely and widely available on the earth's surface. In recent time, the heat transfer fluids suspended with nanoparticles have shown that nanofluids have an immense potential to harness the solar energy. In the present experimental study, the photo-thermal analysis has been conducted with both surface absorption-based system (SAS) as well as blended nanofluid absorption-based system (BNAS). In the blended nanofluid absorption system (BNAS), the mixture of aluminum oxide (Al2O3) and cobalt oxide (Co3O4) nanoparticles has been used.