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An insight into the application of the NTU-epsilon approach for modelling vapour-compression liquid chillers.

Author(s) : BROWNE M. W., BANSAL P. K.

Summary

The paper presents a steady-state model that is useful for predicting the performance of centrifugal liquid chillers over a wide range of operating conditions. The model employs an elemental number of transfer units (NTU-epsilon) methodology to model both the shell-and-tube condenser and the flooded evaporator. The model requires only those inputs that are readily available to the user (i.e. condenser inlet water temperature and evaporator water outlet temperature). The outputs of the model include system performance variables. The model is validated with data from a 450-kilowatt open-drive centrifugal chiller.

Details

  • Original title: An insight into the application of the NTU-epsilon approach for modelling vapour-compression liquid chillers.
  • Record ID : 1999-3535
  • Languages: English
  • Source: Proceedings of the 1998 Purdue International Refrigeration Conference.
  • Publication date: 1998/07/14
  • Document available for consultation in the library of the IIR headquarters only.

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