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dc.contributor.authorJokiel, Michael
dc.contributor.authorBantle, Michael
dc.contributor.authorKopp, Christian Andre
dc.contributor.authorClaussen, Ingrid Camilla
dc.contributor.authorTolstorebrov, Ignat
dc.date.accessioned2020-02-11T11:32:45Z
dc.date.available2020-02-11T11:32:45Z
dc.date.created2020-01-23T13:08:41Z
dc.date.issued2019
dc.identifier.isbn978-2-36215-035-7
dc.identifier.urihttp://hdl.handle.net/11250/2641009
dc.description.abstractDrying is an energy and time intensive process which thermal energy demand is mostly provided by fossil resources. Especially in the food processing industry it is important to increase the energy efficiency of drying processes in terms of organic products and sustainability. The potential of using a heat pump with R744 (CO2) as a working media to provide the thermal energy was investigated for typical food drying temperature of 50 °C at a relative humidity of 20 %. A dynamic heat pumpassisted dryer model has been developed and validated. The model was created with respect to heat transfer, pressure loss and flow requirements. The simulated results showed that a closed-loop heat pump assisted drying process has the potential to reduce the energy demand by around 80 % compared to conventional open-loop drying processes with fossil resources as energy source. Furthermore, the implementation of a bypass in the air cycle was examined to further enhance the energy efficiency of the system.nb_NO
dc.language.isoengnb_NO
dc.publisherInternational Institute of Refrigerationnb_NO
dc.relation.ispartofProceedings of the 25th IIR International Congress of Refrigeration. Montréal, Canada, August 24-30, 2019
dc.titleDesign of a CO2 heat pump drier with dynamic modelling toolsnb_NO
dc.typeChapternb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber3202-3209nb_NO
dc.identifier.doihttp://dx.doi.org/10.18462/iir.icr.2019.1333
dc.identifier.cristin1780834
dc.description.localcodeThis chapter will not be available due to copyright restrictions (c) 2019 by International Institute of Refrigerationnb_NO
cristin.unitcode194,64,25,0
cristin.unitnameInstitutt for energi- og prosessteknikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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