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CFD simulation and experimental validation of ethanol adsorption onto activated carbon packed heat exchanger.

Author(s) : JRIBI S., MIYAZAKI T., SAHA B. B., et al.

Type of article: Article, IJR article

Summary

Experimental validation of simulated adsorber/desorber beds for sorption cooling applications is essential to obtain reliable results. We have conducted rigorous simulation of the adsorption process occurring in a finned tube adsorber utilizing 2D-axisymmetric geometry. The adsorber uses activated carbon–ethanol as adsorbent–refrigerant pair. It is cooled with water at nearly 30?°C and experiencing a sharp pressure increase of ethanol from 0.95?kPa initially to 6?kPa. The simulated temperatures at adsorbent thicknesses of 0, 1, 5 and 10?mm from tube outer diameter showed an increase in adsorbent temperature up to 20 °C from its initial temperature. They were slightly higher at start of adsorption and were consistent with experimental data at higher flow time. The validated CFD model will serve as a base for evaluating and optimizing activated carbon–ethanol adsorption cooling cycle. It can be extended also to different adsorber designs and other adsorbent–adsorbate pairs.

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Format PDF

Pages: 343-351

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Details

  • Original title: CFD simulation and experimental validation of ethanol adsorption onto activated carbon packed heat exchanger.
  • Record ID : 30020116
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 74
  • Publication date: 2017/02

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