Thermal energy storage of R1234yf/MOF-5 and R1234ze(Z)/MOF-5 nanofluids: A molecular simulation study

Abstract Thermal energy storage can be carried out by working fluid adsorb and desorb in porous materials. In this paper, the energy storage properties of two allotropes of R1234 (R1234yf and R1234ze(Z)) with MOF-5 nanoparticle are investigate based on molecular dynamics simulations and grand canonical Monte Carlo simulations. The adsorption amount of R1234ze(Z) in MOF-5 is more than that of R1234yf. However, the increment ratio of thermal energy storage properties of R1234yf/MOF-5 mixture is better than that of R1234ze(Z)/MOF-5 mixture. And the negative enhancement is found in the R1234ze(Z)/MOF-5 mixture when the temperature difference is low.