A new modification on RK EOS for gaseous carbon dioxide
2005 (English)In: Proceedings of ECOS 2005, Vols 1-3: Shaping Our Future Energy Systems / [ed] Kjelstrup, S; Hustad, JE; Gundersen, T; Rosjorde, A; Tsatsaronis, G, 2005, 733-739 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
2005. 733-739 p.
CO2, Redlich-Kwong EOS, thermodynamic properties
IdentifiersURN: urn:nbn:se:kth:diva-43314ISI: 000232156000091ScopusID: 2-s2.0-84924408641ISBN: 82-519-2041-8OAI: oai:DiVA.org:kth-43314DiVA: diva2:448526
18th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2005) Location: Trondheim, NORWAY Date: JUN 20-22, 2005
QC 201110172011-10-172011-10-142011-10-17Bibliographically approved