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CoilDesigner: a general-purpose simulation and design tool for air-to-refrigerant heat exchangers.

Author(s) : JIANG H. B., AUTE V., RADERMACHER R.

Type of article: Article, IJR article

Summary

A simulation and design tool to improve effectiveness and efficiency in design, as well as an analysis of air-to-refrigerant heat exchangers, is introduced. A network viewpoint was adopted to establish the general-purpose solver and allow for analysis of arbitrary tube circuitry and maldistribution of fluid flow inside the tube circuits. A segment-by-segment approach within each tube was implemented, to account for two-dimensional non-uniformity of air distribution across the heat exchanger, and heterogeneous refrigerant flow patterns through a tube. Coupled heat exchangers with multiple fluids inside different subsets of tubes can be modelled and analyzed simultaneously. A further sub-dividing-segment model was developed in order to address the significant change of properties and heat transfer coefficients in the single-phase and two-phase regime when a segment experiences flow regime change. Object-oriented programming techniques were applied in developing the program to facilitate a modular, highly flexible and customisable design platform and in building a graphic user-friendly interface. A wide variety of working fluids and correlations of heat transfer and pressure drop are available at the user's choice. The model prediction with CoilDesigner was verified against experimentally determined data collected from a number of sources.

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Pages: 601-610

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Details

  • Original title: CoilDesigner: a general-purpose simulation and design tool for air-to-refrigerant heat exchangers.
  • Record ID : 2006-1724
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 4
  • Publication date: 2006/06

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