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Techno-economic evaluation of the evaporative gas turbine cycle with different CO(2) capture options
Royal Inst Technol.
Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling. (MERO)ORCID-id: 0000-0002-6279-4446
Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling. (MERO)ORCID-id: 0000-0003-0300-0762
2012 (engelsk)Inngår i: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 89, nr 1, s. 303-314Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The techno-economic evaluation of the evaporative gas turbine (EvGT) cycle with two different CO(2) capture options has been carried out. Three studied systems include a reference system: the EvGT system without CO(2) capture (System I), the EvGT system with chemical absorption capture (System II), and the EvGT system with oxyfuel combustion capture (System III). The cycle simulation results show that the system with chemical absorption has a higher electrical efficiency (41.6% of NG LHV) and a lower efficiency penalty caused by CO(2) capture (10.5% of NG LHV) compared with the system with oxyfuel combustion capture. Based on a gas turbine of 13.78 MW, the estimated costs of electricity are 46.1 $/MW h for System I. while 70.1 $/MW h and 74.1 $/MW h for Systems II and III, respectively. It shows that the cost of electricity increment of chemical absorption is 8.7% points lower than that of the option of oxyfuel combustion. In addition, the cost of CO(2) avoidance of System II which is 71.8 $/tonne CO(2) is also lower than that of System III, which is 73.2 $/tonne CO(2). The impacts of plant size have been analyzed as well. Results show that cost of CO(2) avoidance of System III may be less than that of System II when a plant size is larger than 60 MW.

sted, utgiver, år, opplag, sider
2012. Vol. 89, nr 1, s. 303-314
HSV kategori
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URN: urn:nbn:se:mdh:diva-16532DOI: 10.1016/j.apenergy.2011.07.034ISI: 000296114700036Scopus ID: 2-s2.0-80053350189OAI: oai:DiVA.org:mdh-16532DiVA, id: diva2:575935
Tilgjengelig fra: 2012-12-11 Laget: 2012-12-11 Sist oppdatert: 2017-12-07bibliografisk kontrollert

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