Generic dynamic model for heat exchangers.

Summary

A generic dynamic heat exchanger model for transient and steady state simulation has been developed. This model allows the user to easily create and customize a heat exchanger with any level of complexity and choose from a variety of working fluids. A combined moving boundary and finite volume method is implemented to solve the coupled energy and mass conservation equations for a given time step. The point is determined where the flow regime of the refrigerant changes within the heat exchanger and the segment is subdivided to improve the accuracy of the model. Correlations are used for the evaluation of convective heat transfer, pressure drop and void fraction on the refrigerant and air side. A comparison with another, extensively used and verified simulation tool is presented for the validation of the model.

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Details

  • Original title: Generic dynamic model for heat exchangers.
  • Record ID : 2008-2087
  • Languages: English
  • Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2006/07/17

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