Vapour Absorption Refrigeration System and Nanofluids: Recent Research, Development and Applications

Vapour Absorption Refrigeration Systems (ARS), which may efficiently use low-grade energy, are gaining more and more attention because of the primary energy deficit. However, ARS is more difficult to miniaturize and has poorer efficiency when compared to Vapour Compression Refrigeration Systems (CRS). As a result, there are some limitations on the advancement of ARS. Thankfully, though a growing number of attempts are being undertaken to enhance ARS performance, particularly with regard to mass transfer efficiency and heat transfer efficiency, using nanofluids. The stability of nanofluids is examined in this work as it plays a significant part in improving heat transfer for potential future uses. Analytical model’s measurement methods and characterization of nanofluids following one- or two-step method preparation are examined. This paper outlines current findings on synthesis, thermophysical features, heat transmission, pressure drop characteristics, potential uses and difficulties in employing nanofluids in ARS.