A review of the use of nanofluids as heat-transfer fluids in parabolic-trough collectors

Due to their enhanced thermophysical properties, nanofluids have great potential for improving heat-transfer efficiency. Nanofluids are employed in various thermal applications the automotive industry, heat exchangers, solar power generation and more. Among of this technology, its use enhance transfer collectors appears promising. It is therefore not a surprise that has become popular research area. Still, there important obstacles with collectors. Stability most evident, addition environmental aspects need design suitable large-scale production processes application at required scale large collectors’ fields. In literature review, we study collectors, parabolic-trough particular, temperatures between 100 °C 300 °C. We present recent advances on consider progress understanding stability mechanisms, characterization preparation methods, as well properties. describe main gaps suggest areas further research.