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Dynamic testing and modeling of a diffusion absorption refrigeration system.

Author(s) : BEN JEMAA R., MANSOURI R., BELLAGI A.

Type of article: Article, IJR article

Summary

This paper presents experimental investigations and modeling in dynamic or transient mode of a commercial diffusion-absorption refrigerator powered by an electric heater. The instantaneous cooling capacity is experimentally determined for different electric heater inputs. A first order transfer function with delay is found to be an adequate model of the refrigerator behavior for each heat input. The fitting quality of the model ranges between 93% and 97%. The three parameters of the model are expressed in a further step as functions of energy input to the machine in order to construct a generalized model for the machine. The steady state performances of the refrigerator are quite good predicted, with deviations in cooling capacity not exceeding 8%. The proposed generalized model could be very useful for the prediction of the transient behavior of the commercial diffusion-absorption refrigerator.

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Pages: 249-258

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Details

  • Original title: Dynamic testing and modeling of a diffusion absorption refrigeration system.
  • Record ID : 30017775
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 67
  • Publication date: 2016/07

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