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Sorption refrigeration research at Jet Propulsion Laboratory (JPL)/NASA.

Author(s) : JONES J. A.

Summary

Solid sorption refrigeration systems have long been developed for the cooling of cryogenic infrared sensors for spacecrft applications. This technology was recently applied to domestic heat pumps with predictions of cooling COPs of at least 1 and heating COPs of at least 2, using a preferred sorbent-sorbate combination of carbon-ammonia. A breakthrough carbon binding molding technique has allowed total cycle times of three minutes for heating and three minutes for cooling on a single 0.51 kg carbon sorbent bed with a resulting average 304 watts cooling capacity using a carbon-ammonia test bed. Unlike ammonia solid chemical absorption systems, this ammonia physical adsorption system is not subject to long term corrosion problems, because the physical adsorbent, carbon, is completely unreactive to metal containment vessels. Furthermore, the required pressures are lower for this physical adsorption system than for the advanced chemical absorption systems.

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Pages: 1992-1

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Details

  • Original title: Sorption refrigeration research at Jet Propulsion Laboratory (JPL)/NASA.
  • Record ID : 1994-0248
  • Languages: English
  • Publication date: 1992/11/18
  • Source: Source: C. R. Réun. Paris, IIF/Proc. Paris Meet., IIR
    1992-1; 143-153; 8 fig.; 2 tabl.; 19 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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