Share

IIR document

Results and perspective of an ammonia-water cycle with high temperature lift using reverse rectification.

Author(s) : KAHN R., HUGO H., ALEFELD G.

Summary

The COP of a conventional ammonia-water cycle can be significantly improved by a reverse rectification-column and a second absorber which is combined with a two-stage refrigerant expansion. At an internal temperature lift of 85 K (-20 to 65 deg C) these modifications result in a 50% higher COP for cooling-assuming ideal components. The proposed cycle with reverse rectification was realized in a laboratory test plant with a refrigeration capacity of 10 kilowatts at -20 deg C. This machine was operated at a solution temperature up to 225 deg C and a condenser pressure up to 3 megapascals. The authors mesured the COP versus temperature lift and the load behaviour. A COP of 0.38 was achieved at a temperature lift of 85 K.

Available documents

Format PDF

Pages: 1996-3

This document is to be digitised and will be available within 10 working days

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Results and perspective of an ammonia-water cycle with high temperature lift using reverse rectification.
  • Record ID : 1997-2836
  • Languages: English
  • Source: Applications for Natural Refrigerants
  • Publication date: 1996/09/03
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (88)
See the conference proceedings

Indexing