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Efficient steam generation in industry – Combined heat pump cycle with mechanical vapor recompression.

Number: 0049

Author(s) : UHLMANN M., OLMEDO L. E., ARPAGAUS C., BLESS F., SCHIFFMANN J., BERTSCH S.

Summary

Replacing fossil fuels with alternative energy sources for steam production in industry can help fulfill the targets towards a more sustainable energy landscape. In this work, a high-temperature heat pump and a gas-bearing supported turbocompressor are combined in one system to reduce CO2 emissions for process steam production. The heat pump is designed to generate saturated steam at up to 120 °C by using waste heat of 50 to 100 °C as a heat source. It is based on commercial components and uses R600 (n-butane) as a working fluid. The steam from the heat pump is further compressed to a saturation temperature of 150 °C with an oil-free turbocompressor. This system configuration offers an efficient technological implementation to provide process steam. Based on simulations, an overall COP of 1.9 is predicted for the generation of steam at 150 °C by using waste heat at 50 °C.

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Pages: 11 p.

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Details

  • Original title: Efficient steam generation in industry – Combined heat pump cycle with mechanical vapor recompression.
  • Record ID : 30029678
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0049
  • Document available for consultation in the library of the IIR headquarters only.

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