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Development and testing of a steam compression heat pump for low-grade waste heat recovery.

Number: 1210

Author(s) : RAMIREZ M., OTERO RODRIGUEZ G., SCHEEPENS D., WEIJER G. van, SPOELSTRA S.

Summary

Industrial high-temperature compression heat pumps are considered a technology suitable for decarbonizing industrial processes through electrification. This technology utilizes synthetic or natural working media to operate. Depending on the type of working medium, each of these has a specific disadvantage: (1) the environmental impact of the synthetic and (2) the flammability or toxicity of the natural working media (i.e., hydrocarbons or ammonia). Water is a non-flammable, non-toxic, environmentally friendly alternative, and it has been studied extensively as a natural working medium. However, industrial waste heat is usually below its atmospheric boiling point, making it challenging to implement. In this work we developed and tested a 250 kWth semi-open type Steam Compression Heat Pump (SCHP) for steam generation. The SCHP can use waste heat from 60°C as a heat source. Steam is generated in a vacuum boiler and later compressed by a two-stage compressor to deliver steam at 5 bara.

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Pages: 12 p.

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Details

  • Original title: Development and testing of a steam compression heat pump for low-grade waste heat recovery.
  • Record ID : 30032723
  • 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.gl2024.1210

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