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Cooling performances enhancement of adsorption bed with topology-optimized fins and stepwise porosity.

Author(s) : CHENG Z., LI X., SHEN G., XU M., HUAI X.

Type of article: IJR article

Summary

Low-temperature-driven water-based adsorption refrigeration system is considered environmentally friendly alternatives with the potential to reduce carbon emissions and improve energy sustainability, especially when utilizing renewable or waste heat sources. However, the poor heat and mass transfer of conventionally-used particle-filled adsorption beds largely limits the performance of adsorption chillers. To address this challenge, this study proposes an innovative adsorption bed configuration that integrates topology-optimized fins with stepwise porosity distributions. A two-dimensional transient numerical model is developed to simulate the adsorption/desorption processes under realistic operating conditions. With a 10 % fin volume proportion, the topology-optimized structure increases SCP by 12.9 % and COP by 1.9 % relative to a straight-fin configuration, and by 194.7 % (SCP) and 8.7 % (COP) relative to a no-fin configuration. Further enhancement is achieved by combining stepwise porosity design, where the Type-4 configuration yields SCP and COP increases of 190.4 % and 10.8 % compared to the non-optimized structure. This study is among the first to explore the combined effect of topology optimization and stepwise porosity in adsorption bed design, demonstrating that the synergistic design significantly enhances thermal and mass transfer effectiveness, providing valuable guidance for the development of high-performance adsorption cooling systems.

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Pages: 16 p.

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Details

  • Original title: Cooling performances enhancement of adsorption bed with topology-optimized fins and stepwise porosity.
  • Record ID : 30034765
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 185
  • Publication date: 2026/05
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2026.02.001

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