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Dynamics of a heat transformer working with the mixture soda/water.

Author(s) : STEPHAN K., SCMITT M., HEBECKER D., BERGMANN T.

Type of article: Article, IJR article

Summary

The model described in the paper is based on the balance equations for mass and energy for the different apparatus such as absorber, generator, evaporator, condenser and solution heat exchanger. It simulates a heat transformer process and ensures calculations not too time-consuming and much faster than in real time. With the aid of the model the transient behaviour of a heat transformer working with the mixture soda/water is examined. For steady state operation the simulations agree well with experiments on a pilot plant. With soda/water as working substances high COPs up to 0.49 were obtained with the heat transformer. For unsteady state operation the deviations between experiments and simulations were slightly higher than those for steady state. The model nevertheless predicts the transient behaviour with a satisfying accuracy. Also the startup and shutdown behaviour of a heat transformer was investigated under different conditions.

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Format PDF

Pages: 483-495

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Details

  • Original title: Dynamics of a heat transformer working with the mixture soda/water.
  • Record ID : 1998-1912
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 20 - n. 7
  • Publication date: 1997/11

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