dc.contributor.author | Schlemminger, Christian | |
dc.contributor.author | Bantle, Michael | |
dc.contributor.author | Jenssen, Sigmund | |
dc.contributor.author | Dallai, Mauro | |
dc.date.accessioned | 2022-11-03T11:21:51Z | |
dc.date.available | 2022-11-03T11:21:51Z | |
dc.date.created | 2022-10-17T10:35:03Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants - GL2022 - Proceedings - Trondheim, Norway, June 13-15th 2022 | en_US |
dc.identifier.isbn | 978-2-36215-045-6 | |
dc.identifier.issn | 0151-1637 | |
dc.identifier.uri | https://hdl.handle.net/11250/3029848 | |
dc.description.abstract | Industrial processes like dairy production, brewing etc. often require simultaneous cooling and heating. High temperature heat pumps (HTHP) with natural working fluids offer a cost-, energy efficient and sustainable solution. However, availability and performance data and components for HTHP are rare, which is addressed in this work. Here, the performance of a newly developed industrial scale propane-butane cascade HTHP is presented. It has a new developed semi-hermetic compressor, able to operate at high temperatures. The HTHP is installed in a Norwegian dairy and can lift from typical ice-water temperatures at 0.5°C to process hot-water at 112°C. Temperature glides are 4 K and 15 K at source and sink, respectively. Combined heating and cooling COP is 3.0 to 4.0 with a mean at 3.4 were measured. For this condition a temperature lift between heat sink and source was 88 K to 108 K. The highest temperature lift recorded between evaporation and condensation was 125 K. Condenser and evaporator capacities are within a range of 80 kW to 282 kW and 35 kW bis 134 kW, respectively. The cascade HTHP enables to utilizes waste heat form e.g. chilled/ice-water or dry-coolers effectively to supply process heat at 112°C. The HTHP is suited for a both retrofit and new installations reducing energy consumption by up to 64% and CO2-emissions by up to 94%. | en_US |
dc.description.abstract | Industrial high temperature heat pump for simultaneous production of ice-water and process-heat | en_US |
dc.language.iso | eng | en_US |
dc.publisher | IIR | en_US |
dc.relation.ispartof | 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants - GL2022 - Proceedings - Trondheim, Norway, June 13-15th 2022 | |
dc.relation.ispartofseries | Science et technique du froid; | |
dc.title | Industrial high temperature heat pump for simultaneous production of ice-water and process-heat | en_US |
dc.title.alternative | Industrial high temperature heat pump for simultaneous production of ice-water and process-heat | en_US |
dc.type | Chapter | en_US |
dc.type | Peer reviewed | en_US |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | Copyright © 2022 IIF/IIR. Published with the authorization of the International Institute of Refrigeration (IIR). The conference proceedings of GL2022 are available in the Fridoc database on the IIR website at www.iifiir.org | en_US |
dc.identifier.cristin | 2061890 | |
dc.relation.project | Norges forskningsråd: 296374 | en_US |
dc.relation.project | Norges forskningsråd: 257632 | en_US |
dc.source.articlenumber | 0166 | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |