dc.contributor.author | Bantle, Michael | |
dc.contributor.author | Schlemminger, Christian | |
dc.contributor.author | Gabrielii, Cecilia H | |
dc.contributor.author | Ahrens, Marcel Ulrich | |
dc.date.accessioned | 2020-02-03T13:15:15Z | |
dc.date.available | 2020-02-03T13:15:15Z | |
dc.date.created | 2019-09-17T13:54:37Z | |
dc.date.issued | 2019 | |
dc.identifier.isbn | 978-2-36215-035-7 | |
dc.identifier.uri | http://hdl.handle.net/11250/2639327 | |
dc.description.abstract | Water (R-718) is a safe and energy-efficient refrigerant. Mechanical vapour recompression (MVR), an open-loop heat pump using R718, can significantly reduce the energy consumption for steam-heated processes like drying, pasteurization, evaporation or distillation. However, the existing compression technology is not cost-efficient, especially in the capacity range from 500 kW to 4 MW. Therefore, a novel two-stage turbo-compressor system, developed for application in industrial superheated steam drying and based on mass-produced automotive turbocharger technology, was developed. Its performance was evaluated in a test facility, showing that it is possible to compress superheated steam from atmospheric pressure up to 3 bar, delivering 300 kW at 133°C, with a COP of 5.9, an isentropic efficiency of 74% and a Carnot efficiency of 48%. With an estimated investment cost of 150 €/kW installed heating capacity, the system clearly has the potential of being a cost-effective solution for heat recovery in steam-heated industrial processes. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | International Institute of Refrigeration | nb_NO |
dc.relation.ispartof | Proceedings of the 25th IIR International Congress of Refrigeration. Montréal, Canada, August 24-30, 2019 | |
dc.title | Turbo-compressors for R-718: Experimental evaluation of a two-stage steam compression cycle | nb_NO |
dc.type | Chapter | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 4567-4574 | nb_NO |
dc.identifier.cristin | 1725696 | |
dc.relation.project | EC/H2020/723576 | nb_NO |
dc.description.localcode | This chapter will not be available due to copyright restrictions (c) 2019 by International Institute of Refrigeration | nb_NO |
cristin.unitcode | 194,64,25,0 | |
cristin.unitname | Institutt for energi- og prosessteknikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |