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A new modification on RK EOS for gaseous carbon dioxide
Royal Institute of Technology, Stockholm, Sweden .
Royal Institute of Technology, Stockholm, Sweden .
Mälardalens högskola, Institutionen för samhällsteknik.ORCID-id: 0000-0003-0300-0762
2005 (engelsk)Inngår i: ECOS 2005 - Proceedings of the 18th International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, 2005, s. 733-739Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Mitigation technologies including CO2 capture and storage in various energy conversion systems have been intensively developed in recent years. However, it is of importance to develop an equation of state (EOS) with simple structure and reasonable accuracy for engineering application for both pure CO2 and CO2 mixtures. In this paper, Redlich-Kwong equation of state was modified for gaseous CO2. In the new modification, parameter 'a' was correlated as a function of temperature and pressure from reliable experimental data in the range: 220K to 750K and 0.1MPa to 400MPa. To verify the accuracy of the new parameters, densities were calculated and compared with experimental data. The average error is 1.68 %. Other thermodynamic properties of CO2, such as enthalpy and heat capacities, were also calculated; results fit experimental data well except critical region. This method can be further developed for CO2 mixture systems.

sted, utgiver, år, opplag, sider
2005. s. 733-739
Emneord [en]
CO2, Redlich-Kwong EOS, Thermodynamic properties, Digital storage, Environmental impact, Equations of state, Mixtures, Energy conversion systems, Engineering applications, Equation of state, Reasonable accuracy, Redlich-Kwong, Redlich-kwong equation of state, Simple structures, Temperature and pressures, Carbon dioxide
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Identifikatorer
URN: urn:nbn:se:mdh:diva-27713Scopus ID: 2-s2.0-84924408641ISBN: 8251920418 (tryckt)OAI: oai:DiVA.org:mdh-27713DiVA, id: diva2:796532
Konferanse
18th International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2005, 20 June 2005 through 22 June 2005
Tilgjengelig fra: 2015-03-19 Laget: 2015-03-19 Sist oppdatert: 2015-03-19bibliografisk kontrollert

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