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HEAT RECOVERY FROM EQUIPMENT OPERATION IN AMMONIA REFRIGERATING SYSTEMS.

[In Czech. / En tchèque.]

Author(s) : ZÓLTANIECKI A.

Type of article: Article

Summary

THE CONDENSERS OF REFRIGERATING SYSTEMS ARE A POWERFUL SOURCE OF WASTE HEAT, WHICH CAN BE SUITABLY UTILIZED IN FOOD PROCESSING FACTORIES HAVING A RELATIVELY CONSTANT COLD CAPACITY DEMAND DURING THE YEAR ON 2 TEMPERATURE LEVELS. BY DESUPERHEATING OF AMMONIA VAPOURS AND REMOVING A PART OF CONDENSING HEAT, A HEAT FLOW IS RECLAIMED DIRECTLY AT A HIGH TEMPERATURE LEVEL, APPLICABLE TO MANY PRODUCTION PROCESSES. THE REST OF CONDENSING HEAT IS RECOVERED AT A LOWER TEMPERATURE AND STEPPED UP BY HEAT PUMPS. POSSIBLE USE OF A SREW-COMPRESSOR HEAT PUMP FOR CONDENSING HEAT RECOVERY WITH AN OUTLET TEMPERATURE OF 343 K (70 DEG C) IS DEMONSTRATED WITH THE EXAMPLE OF A FRUIT AND VEGETABLE PROCESSING FACTORY, CONSUMING 1,578 KILOWATTS OF HEAT, COVERING 47% OF THE TOTAL HEAT DEMAND AT A COP OF 3.6.

Details

  • Original title: [In Czech. / En tchèque.]
  • Record ID : 1991-1360
  • Languages: Czech
  • Source: Prum. Potravin - vol. 41 - n. 7
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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