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First results of a directly air-cooled fixed-bed adsorber for a refrigerator driven by waste heat.

Number: pap. n. 516

Author(s) : HURTIG K., DÜWEL K., JÄGER M., et al.

Summary

In the paper at hand first results of testing a directly air-cooled adsorption refrigerator with fixed-bed adsorbers are presented.
The refrigerator utilizes water as refrigerant and silica gel as adsorbent. In contrast to the most common water-cooled adsorbers, the investigated adsorber is cooled with ambient air. The adsorber has a plate geometry with vertical fins. Low power fans are installed to increase the heat transfer. The configuration of the adsorber is introduced, followed by a discussion of its temperature distribution and an outlook on future improvements.The results show that the adsorber’s surface temperature varies by up to 10 K over the height. The minimum temperature difference between surface and cooling air occurs at the inlet of the air flow. The temperature difference between inlet and outlet on the surface cannot be induced by the air’s temperature increase with flow length only, but is also influenced by the adsorption characteristics.

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Details

  • Original title: First results of a directly air-cooled fixed-bed adsorber for a refrigerator driven by waste heat.
  • Record ID : 30026002
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0516

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