“…The results suggested that the characteristics of three of the four composites were suitable for integration into the solar collector, with the exception of sodium acetate trihydrate. Haillot et al [29] numerically evaluated the incorporation of PCM into the solar collector to enhance the performance of DHW systems based on the selection and synthesis of the PCMs reported in [28]. To improve the thermal performance of the DHW system, the researchers selected compressed and expanded natural graphite and RT65 composites.…”