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Modelling and analysis of the cooling system of an ammonia compressor.

Author(s) : BONJOUR J., CLAUSSE M.

Summary

A simplified model for a water-cooled ammonia compressor was developed. This model is based on a discretized description of the compression and heat transfer processes. The compressor is hence viewed as a heat exchanging device including a heat source. The model is used to highlight some features of cooling circuits. First, such a circuit cannot be designed using conventional heat exchanger theories, because the fluids temperature profiles usually cross-over each other, and because their shape is clearly different from usual heat exchangers temperature profiles: depending on the conditions, the coolant temperature exhibit a maximum or minimum along its path. An analysis of the cooling efficiency to various parameters is provided: the effect of co-current or counter flow on the discharge temperature, the effect of coolant mass flow rate, etc. will be particularly pointed out.

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Pages: ICR07-B1-939

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Details

  • Original title: Modelling and analysis of the cooling system of an ammonia compressor.
  • Record ID : 2007-2552
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

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