Solidification effect of MXene nano-enhanced phase change material on 2E’s analysis of latent heat thermal energy storage

Abstract

In the present study, systems efficiency, heat transfer rate, exergy destruction, entropy generation number, exergetic efficiency, liquid fraction, and solidification temperature contours are determined for double-tube thermal energy storage (DT-TES) and triple-tube thermal energy storage (TT-TES) systems using MXene-based nano-enhanced phase changes material (NEPCM). The findings showed that the DT-TES using pure beeswax PCM in pure solidification has a discharge exergy 14.76% lower than that of MXene-based NEPCM. Using the TT-TES system, pure PCM and MXene NEPCM produced 2.47% and 3.62% less entropy at 2400 s than pure beeswax. Over 2400 s, DT-TES using pure beeswax discharged more effectively. Because of the superior thermophysical characteristics of MXene nanoparticles, the TT-TES system solidified beeswax PCM 18.53% faster than pure PCM. Consequently, under TT-TES latent heat, MXene-based nano-enhanced beeswax PCM solidifies more quickly per volume. © Akadémiai Kiadó Zrt 2024.