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A promising CO2 heat pump.

Une pompe à chaleur au CO2 prometteuse.

Author(s) : GROLL E. A., KURTULUS O., YAZAWA K., et al.

Type of article: Article

Summary

In food processing, here are significant simultaneous demands of cooling. (range: 0°C -15°C), warm water (range: 25°C -70°C) and hot water (range: 75°C -100°C) for washing, blanching, pasteurization, CIP (Cleaning-in-Place), and other processes. Most of the heated water is used only once rather than recycled. The water to be heated usually comes from environment and its temperature will vary as ambient temperature changes. In order to reduce energy consumption and greenhouse gases emission, a transcritical CO2 heat pump system is proposed that can supply not only cooling, but also warm water and hot water simultaneously tome et the thermal demands of food processing. Simulation results showed that the potential primary energy saving rate of the proposed CO2 heat pump is from 50% to 60% when inlet water temperature ranges from 5°C to 30°C during a year.

Details

  • Original title: Une pompe à chaleur au CO2 prometteuse.
  • Record ID : 30018391
  • Languages: French
  • Source: Revue générale du Froid & du Conditionnement d'air - n. 1156
  • Publication date: 2016/03

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