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Ammonia refrigeration system with heat recovery for a retrofit cold warehouse.

Author(s) : MINEA V.

Summary

Ammonia refrigeration systems in medium and large cold warehouses operate with discharge and condensing temperatures allowing efficiently recovering heat for space and industrial hot water heating. This paper presents the thermal design of a heat recovery system from five retrofit ammonia compressors totalling 2361 kW of maximum heat rejection with desuperheater/condenser and cascading heat pumps. About 33.5% of the available thermal power is recovered and used for heating 12 250-m2 service and office areas with brine-to-air heat pumps connected on a brine reverse closed-loop. When at least two compressors simultaneously are operating, whole available sensible heat and up to 93.9% of condensing enthalpy have to be recovered to satisfy the building peak heating demand.

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Pages: 2007-2

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Details

  • Original title: Ammonia refrigeration system with heat recovery for a retrofit cold warehouse.
  • Record ID : 2007-2335
  • Languages: English
  • Source: Ammonia Refrigeration Technology for Today and Tomorrow.
  • Publication date: 2007/04/19

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