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Multivariable control-oriented modelling of a direct expansion (DX) air conditioning (A/C) system.

Author(s) : QI Q., DENG S.

Type of article: Article, IJR article

Summary

A dynamic mathematical model for a DX A/C system has been developed. The dynamic model, written in state-space representation which was suitable for designing multivariable control, was linearized at steady-state operating points. The linearized model has been validated by comparing the model simulation results with the experimental data obtained from an experimental DX A/C system. The simulated results agreed well with the experimental data, suggesting that the model developed was able to capture the transient characteristics of the DX A/C system modelled. It is expected that the model developed can be useful in designing a multi-input multi-output controller to simultaneously control indoor air temperature and humidity in a space served by a DX A/C system.

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Pages: 841-849

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Details

  • Original title: Multivariable control-oriented modelling of a direct expansion (DX) air conditioning (A/C) system.
  • Record ID : 2008-1718
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 5
  • Publication date: 2008/08

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