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Integration of solar-assisted cooling and freezing into a micro-brewery process using a hybrid vapour-compression/sorption system.

Number: 0165

Author(s) : JAKOB U., KOHLENBACH P., WEISS M., WEISS W.

Summary

This paper describes the investigation into the design, performance, and economics of solar-assisted cooling processes/applications in a micro-brewery in California, USA. A solar assisted hybrid vapour-compression/sorption system supplies not only cold to maturing tanks, cold liquor tanks and walk-in freezers at temperatures below 0°C, but also to walk-in coolers and air-conditioning at standard chilled-water temperatures. It consists of two hybrid chillers, each a combination of R290 vapour-compression and silica gel adsorption chiller. The system has a combined cooling capacity of 70 kWr. Excess solar thermal energy from the solar thermal collector field with 412 m2 absorber area is used for further heat requirements in the brewing process, such as heating hot liquor tanks and cleaning. Approximately 431 MWhth per year thermal energy are required for the heating and cooling applications at the micro-brewery case study. In addition, the solar fraction is 66% and the payback time of the system is 6.2 years.

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Pages: 10 p.

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Details

  • Original title: Integration of solar-assisted cooling and freezing into a micro-brewery process using a hybrid vapour-compression/sorption system.
  • Record ID : 30029757
  • 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.gl2022.0165
  • Document available for consultation in the library of the IIR headquarters only.

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