In this work, the melting behavior and the thermal efficiency of phase change materials PCM RT28 filled between two walls with distinct brick cavity configurations 8–8 and 12–8 cavities are analyzed numerically using CFD (computational fluid dynamics) code. The paper aims to predict the effect of the brick geometry on the PCM melting rate using Ansys Fluent R15 software, in terms of temperature contours and liquid fraction under identical external solar radiation and temperature conditions in Tatouine, Tunisia. The results show that the results demonstrate that the PCM RT28 can delay the transfer of heat from the exterior to the interior throughout the day in august month. In comparison to the 12–8 cavity design, the 8–8 cavity layout provides better heat transport, resulting in faster melting and even more temperature distribution.

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CFD Analysis of Heat Transfer Improvement in Double Brick Wall Design Filled with PCM

  • Jaweher Hamden,
  • Fatma Kriaa,
  • Sirine Chtourou,
  • Moez Hammami,
  • Mounir Baccar

摘要

In this work, the melting behavior and the thermal efficiency of phase change materials PCM RT28 filled between two walls with distinct brick cavity configurations 8–8 and 12–8 cavities are analyzed numerically using CFD (computational fluid dynamics) code. The paper aims to predict the effect of the brick geometry on the PCM melting rate using Ansys Fluent R15 software, in terms of temperature contours and liquid fraction under identical external solar radiation and temperature conditions in Tatouine, Tunisia. The results show that the results demonstrate that the PCM RT28 can delay the transfer of heat from the exterior to the interior throughout the day in august month. In comparison to the 12–8 cavity design, the 8–8 cavity layout provides better heat transport, resulting in faster melting and even more temperature distribution.