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Logic unconstrained multizone evaporator and condenser models.

Author(s) : SHAO L. L., ZHANG C. L.

Type of article: Article, IJR article

Summary

The multi-zone model is widely used in evaporator and condenser modeling. The basic two-zone evaporator model and three-zone condenser model might reduce to one-zone or two-zone model depending on the operating conditions. In the traditional multi-zone models, logic constraints are invoked to separate the possible running modes and trigger mode changes from one to another, which will lead to the complicated logic in implementation. A logic unconstrained multi-zone model has been developed in this paper. In the new model, all the logic constraints are transformed into continuously differentiable equations. As a result, all the equations can be solved simultaneously without any logic constraints. Numerical examples show that the new logic unconstrained multi-zone models are in good agreement with the traditional ones.

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Pages: 926-931

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Details

  • Original title: Logic unconstrained multizone evaporator and condenser models.
  • Record ID : 2007-1521
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 5
  • Publication date: 2007/08

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