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A novel heat pumping cycle in a rotation heat pump for latent process heat supply using sensible heat sources.

Number: 1113

Author(s) : ZOTTER G., ADLER B., LÄNGAUER A.

Summary

A unique design of the Rotation Heat Pump (RHP) featuring a diffusion-bonded heat exchanger operates at high rotation speeds and gas pressure levels, achieving sink outlet temperatures of up to 200°C with a 100K temperature lift in a single stage. Utilizing a new kind of supercritical refrigerant cycle with noble gas mixtures and centrifugal forces for compression and expansion circumvents concerns about lubrication, flammability, GWP, or PFAS. This design also allows an isothermal state of changes by heat transferring during compression and, therefore, offers flexibility by optimizing the rotor for diverse applications. Within this paper, a thermodynamic analysis, including a cycle comparison with conventional Perkin/Evans- and reverse Joule cycle, is presented, underlining the significant potential of this innovative approach, minimizing exergy losses and enhancing performance for supplying high-pressure hot water or steam for the industry, while meeting high coefficient of performance.

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Pages: 11 p.

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Details

  • Original title: A novel heat pumping cycle in a rotation heat pump for latent process heat supply using sensible heat sources.
  • Record ID : 30032651
  • Languages: English
  • Source: 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
  • Publication date: 2024/08
  • DOI: http://dx.doi.org/10.18462/iir.gl2024.1113

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