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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
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
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2017 (English)In: 8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016, Elsevier, 2017, Vol. 105, 4595-4600 p.Conference paper, Published paper (Refereed)
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-fin multi-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 noticeable impact on the plate-fin multi-stream heat exchanger design, and the maximum deviation by using different thermal conductivity models is 7.5%.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 105, 4595-4600 p.
Series
Energy Procedia, ISSN 1876-6102 ; 105
Keyword [en]
CO2 mixture, Model evaluation, Multi-stream heat exchanger, Thermal conductivity, Viscosity
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-210202DOI: 10.1016/j.egypro.2017.03.992ISI: 000404967904106Scopus ID: 2-s2.0-85020744268OAI: oai:DiVA.org:kth-210202DiVA: diva2:1117612
Conference
8th International Conference on Applied Energy, ICAE 2016, Beijing, China, 8 October 2016 through 11 October 2016
Note

QC 20170629

Available from: 2017-06-29 Created: 2017-06-29 Last updated: 2017-10-31Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
  • html
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  • asciidoc
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