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Property Impacts on Plate-fin Multi-stream Heat Exchanger (Cold Box) Design in CO2 Cryogenic Process: Part II. Evaluation of Viscosity and Thermal Conductivity Models
Royal Institute of Technology, Sweden.
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0001-7328-1024
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0002-6279-4446
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0002-3485-5440
Vise andre og tillknytning
2017 (engelsk)Inngår i: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 105, s. 4595-4600Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Viscosity and thermal conductivity are key transport properties in the design of plate-fin multi-stream heat exchanger in CO2 cryogenic processes. It is necessary to evaluate the reliabilities of viscosity and thermal conductivity models. In addition, the differences in design of multi-stream heat exchanger by using different property models need to be studied as well. In this paper, viscosity models and thermal conductivity models of CO2 mixtures with non-condensable gas impurities were evaluated separately by comparison with existing experimental data. Recommendations were given on model selections and their impact on the design of plate-finmulti-stream heat exchanger were analyzed.

The results show that for viscosity, the uncertainty range of Wilke’s model is the smallest with a maximum absolute deviation of 6.1%. This model is therefore recommended to be used. For thermal conductivity, GERG model, with a maximum absolute deviation of 8.7% is preferred. The choice of thermal conductivity model has a noticeabl eimpact on the plate-fin multi-stream heat exchanger design, and the maximum deviation by using different thermal conductivity models is 7.5%

sted, utgiver, år, opplag, sider
2017. Vol. 105, s. 4595-4600
HSV kategori
Identifikatorer
URN: urn:nbn:se:mdh:diva-37567DOI: 10.1016/j.egypro.2017.03.992ISI: 000404967904106Scopus ID: 2-s2.0-85020744268OAI: oai:DiVA.org:mdh-37567DiVA, id: diva2:1169154
Tilgjengelig fra: 2017-12-22 Laget: 2017-12-22 Sist oppdatert: 2018-07-25bibliografisk kontrollert

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