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Document IIF

Mise en place d'une régulation à vitesse variable pour un système frigorifique afin d'améliorer la performance.

Implementation of adaptative control for a refrigeration system to improve performance.

Auteurs : BANDARRA FILHO E. P., GARCIA F. E. M., MENDONZA O. S. H.

Résumé

This paper reports an experimental investigation using adaptative control in a refrigeration system. This system is composed basically for a semi-hermetic alternative compressor, concentrical tubes condenser and evaporator heat exchangers and a thermostatic expansion valve. The refrigerant used in the refrigeration system was the R-22 and also an AC frequency inverter has been used to control the compressor rotation. The temperatures were measured by PT-100 sensors and the pressures were measured using piezoresistive pressure transducers, the data acquisition was implemented using the software Labview, it was also used an electronic card with analogical signal output. These analogical signals are converted into digital through a programmable logic controller and then sent to the computer through a PC serial port. The tests were performed with a variable speed compressor in range 30 to 70 Hz and the experimental results showed the high performance (COP) to 50 Hz with fuzzy control.

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Format PDF

Pages : ICR07-B2-942

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    20 €

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Détails

  • Titre original : Implementation of adaptative control for a refrigeration system to improve performance.
  • Identifiant de la fiche : 2008-0578
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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