publication . Conference object . Contribution for newspaper or weekly magazine . 2012

Ammonia and Carbon Dioxide Heat Pumps for Heat Recovery in Industry

Wiebke Brix Markussen; Christensen, Stefan W.; Markussen, Michael M.; Lars Reinholdt; Brian Elmegaard;
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  • Published: 01 Jan 2012
  • Country: Denmark
Abstract
This paper presents a generic, numerical study of high temperature heat pumps for waste heat recovery in industry using ammonia and carbon dioxide as refrigerants. A study of compressors available on the market today, gives a possible application range of the heat pumps in terms of temperatures. Calculations of cycle performances are performed using a reference cycle for both ammonia and carbon dioxide as refrigerant. For each cycle a thorough sensitivity analysis reveals that the forward and return temperatures of the heat sink (condenser or gas cooler) of the heat pump are most important for the coefficient of performance, COP. By comparing the cycles it is fo...
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Contribution for newspaper or weekly magazine . 2012
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