dc.contributor.author | Munkejord, Svend Tollak | |
dc.contributor.author | Hammer, Morten | |
dc.date.accessioned | 2020-02-20T13:54:01Z | |
dc.date.available | 2020-02-20T13:54:01Z | |
dc.date.created | 2015-03-27T13:25:32Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | International Journal of Greenhouse Gas Control. 2015, 37 398-411. | nb_NO |
dc.identifier.issn | 1750-5836 | |
dc.identifier.uri | http://hdl.handle.net/11250/2643012 | |
dc.description.abstract | We present and discuss two-phase flow models to simulate transient flow of CO2-rich mixtures in pipes, which is of relevance for design, operation and safety. The model predictions are compared to data from five depressurization experiments from three facilities. Two flow-model formulations are considered. One is a homogeneous equilibrium model in which the phases travel at the same velocity. The other is a more complex two-fluid model in which the slip between the phases is modelled. The thermodynamic equilibrium of the multi-component mixture, constrained by energy and volume, is computed simultaneously with the flow equations. In general, good agreement with the experiments is obtained, including the dry-out point where the liquid in the pipe has evaporated. For the friction and heat-transfer models tested, the two-fluid model did not provide substantially better predictions than the homogeneous equilibrium model. The effect of different heat-transfer models is also discussed. In our case, it is necessary to take the pipe heat capacity into account. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.relation.uri | http://www.sintef.no/co2dynamics | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.subject | Carbon dioxide | nb_NO |
dc.subject | CO2 transport | nb_NO |
dc.subject | Pipeline | nb_NO |
dc.subject | Transient simulation | nb_NO |
dc.subject | CFD | nb_NO |
dc.subject | Fluid dynamics | nb_NO |
dc.subject | Thermodynamics | nb_NO |
dc.subject | Depressurization | nb_NO |
dc.title | Depressurization of CO2-rich mixtures in pipes: Two-phase flow modelling and comparison with experiments | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 398-411 | nb_NO |
dc.source.volume | 37 | nb_NO |
dc.source.journal | International Journal of Greenhouse Gas Control | nb_NO |
dc.identifier.doi | 10.1016/j.ijggc.2015.03.029 | |
dc.identifier.cristin | 1234871 | |
dc.relation.project | Norges forskningsråd: 189978 | nb_NO |
dc.relation.project | Egen institusjon: 16X86303 | nb_NO |
dc.relation.project | Egen institusjon: 502000610 | nb_NO |
cristin.unitcode | 7548,60,0,0 | |
cristin.unitname | Gassteknologi | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 2 | |