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Optimization of refrigeration plants for off-design operating conditions.

Author(s) : GLUCKMAN R.

Type of article: Periodical article

Summary

The author outlines the load variations experienced hourly and annually by most refrigeration plants. Frequently the minimum loads are concurrent with minimum required lift from evaporating to condensing temperatures due to variations in ambient and load related to ambient temperatures. Optimization for peak design conditions may give poor results as peak loads often occur for only short periods annually. All plants should be designed for best efficiency at all operating conditions, but particularly at most common conditions. To this end both evaporation and condensation temperatures must be allowed to swing, also intermediate pressures in multi-stage systems. Plant must be controlled to maintain best efficiency under all conditions. Only proper analysis of annual requirements and the effect of ambient on plant operation can enable efficient selection of plant components or control systems. D.W.H.

Details

  • Original title: Optimization of refrigeration plants for off-design operating conditions.
  • Record ID : 1994-1534
  • Languages: English
  • Subject: General information
  • Source: Inst. Refrig., Adv. Proof - 10 p.; 9 fig.; 10 tabl.
  • Publication date: 1993/04/01
  • Document available for consultation in the library of the IIR headquarters only.

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