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dc.contributor.authorVerpe, Espen Halvorsen
dc.contributor.authorSchlemminger, Christian
dc.contributor.authorBantle, Michael
dc.contributor.authorAhrens, Marcel Ulrich
dc.date.accessioned2021-02-10T07:49:46Z
dc.date.available2021-02-10T07:49:46Z
dc.date.created2020-12-11T12:08:34Z
dc.date.issued2020
dc.identifier.isbn978-2-36215-040-1
dc.identifier.urihttps://hdl.handle.net/11250/2727043
dc.description.abstractThis paper evaluates a water based (R718) high temperature heat pump with novel high-pressure lift turbo compressors. The first stage turbo compressor is designed for steam compression and the second stage is designed for air, both are based on economic standard components from the automotive industry. A 500 kW compressor test rig was built by SINTEF to test the 2-stage configuration in superheated steam conditions. Compressor efficiency and system COP was calculated based on measurements from the test rig. Also, compressor maps for the two compressors was created. For the 1st stage compressor, the maximum isentropic efficiency was 67% and maximum pressure ratio 2.4. The second stage yielded 77% and 2.0. The two-stage configuration was able to produce 4.23 bar steam, from atmospheric inlet conditions. The system COP corresponded to 4.5 and a Carnot efficiency of 49.5 %. Keywords: Heat pumps, HTHP, Water R718, turbo compressor, energy efficiency, steam productionen_US
dc.language.isoengen_US
dc.publisherInternational Institute of Refrigerationen_US
dc.relation.ispartofProceedings of the 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants
dc.titleExperimental evaluation of a water based high temperature heat pump with novel high pressure lift turbo compressorsen_US
dc.typeChapteren_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber49-54en_US
dc.identifier.doi10.18462/iir.gl.2020.1019
dc.identifier.cristin1858708
dc.relation.projectEC/H2020/723576en_US
dc.description.localcodeThis chapter will not be available due to copyright restrictions (c) 2020 by International Institute of Refrigerationen_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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