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Condenseurs : quels sont les points de consigne optimaux de la pression de refoulement du compresseur ?

What is the optimum compressor discharge pressure set point for condensers?

Auteurs : LOVE R. J., CLELAND D. J., MERTS I., et al.

Type d'article : Article

Résumé

Optimization of condenser set points to minimize energy use requires a trade-off between high compressor energy use at high head pressures and high condenser fan and pump energy use to achieve low head pressures. It is shown that for most condenser selections used in New Zealand industrial applications, floating the head pressure is the best strategy. Multi-speed fans and variable speed drive fan controls only give significant energy use reductions compared with on/off control if compressors operate highly unloaded and/or the condenser is grossly oversized. Oil separators, discharge and high pressure liquid lines, and expansion and other refrigerants control valves should be designed to operate satisfactorily across the full range of discharge pressures likely to be encountered if discharge pressure is floated.

Détails

  • Titre original : What is the optimum compressor discharge pressure set point for condensers?
  • Identifiant de la fiche : 2006-1198
  • Langues : Anglais
  • Source : EcoLibrium - vol. 4 - n. 7
  • Date d'édition : 08/2005

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