A Review on Experimental and Numerical Investigations on Using Nanofluid in Volumetric Solar Energy Collectors

摘要: By a simple research in the scholarly articles, it can be realized that tendency to using solar thermal energy has risen recent years due its many reasonable advantages. In conventional systems, HTFs (Heat Transfer Fluids) are pumped through piping of collector and after absorbing radiant conveys water make steam. No need say this method contains some losses via all methods heat transfer. To solve problem, researchers have shown with direct steam generation, which working fluid directly absorbs becomes vapor, power plants potential more productive. However, aforesaid don’t efficient enough properties improved. For reason nanofluid become extent popular transfer facilities like collectors. present study, we going identify advantages disadvantages nanoparticles absorption systems (DSASs). achieve this, general review on experimental numerical studies field is done. Additionally most effective particles for such special case, should good radiative characteristics, introduced. Finally, discussion about highlighted challenges nanofluids DSASs, helpful suggestions overcome these problems will presented.Copyright © 2014 by ASME