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Heat pumps based on liquid metals absorption for very high temperatures. 1. Thermodynamical bases.

Pompes à chaleur à absorption à métaux liquides pour très hautes températures. 1. Bases thermodynamiques.

Author(s) : LIU B. Q., LE GOFF P.

Type of article: Article

Summary

There is actually no heat pump for temperature higher than 150 deg C. The use of mixtures of liquid metals enables to design type-I and type-II (thermotransformers) heat pumps which operate between 200 and 1000 deg C. The thermodynamical bases of the process are presented. The basic scheme of a thermotransformer using the mercury-sodium couple is described, which enables to valorize a heat flux from 400 deg C to a temperature higher than 700 deg C, the mercury vapour pressure in the system remaining everywhere lower than 1 bar.

Details

  • Original title: Pompes à chaleur à absorption à métaux liquides pour très hautes températures. 1. Bases thermodynamiques.
  • Record ID : 1994-0502
  • Languages: French
  • Source: Entropie - vol. 29 - n. 176
  • Publication date: 1993
  • Document available for consultation in the library of the IIR headquarters only.

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