Analysis of the thermodynamic and economic effciency of a supercritical power unit with a lignite-fed CFB boiler and an air separation unit based on high-temperature membrane technology
Abstract
This paper presents a thermodynamic and economic analysis of the supercritical power unit with OXY type circulating fluidized bed boiler fed with lignite and air separation unit based on a three-end type high-temperature membrane. The fluidized bed boiler model is integrated with the installation of fuel drying, flue gas dehumidifier and the flue gas stream compression unit for further transportation. Models of the CFB boiler with fuel drying installation, air separation unit (ASU) and flue gas compression installation (CCS) were built using GateCycle™ computer program. For the fuel drying process the expanded nitrogen and oxygen mixture stream from the air separation unit was used. Thermodynamic analysis of the power unit assumed examining of certain characteristics of the block as a function of the oxygen recovery rate in the high-temperature membrane and selecting the appropriate calculation point for further economic analysis. Within the economic analysis for a selected operation point of the block the estimated capital expenditures and break-even price of electricity under the assumption that the net present value of investment (NPV) is equal to zero were determined.References
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[2] A. Dryja´nska. Analiza sprawno´sci elektrowni na parametry nadkrytyczne z cyrkulacyjnym kotłem fluidalnym typu oxy. Rynek Energii, 1(104):11–15, 2013.
[3] H. Stadler et al. Oxyfuel coal combustion by ecient integration of oxygen transport mmembrane. International Journal of Greenhouse Gas Control, 5:7–15, 2011.
[4] J. Kotowicz and A. Balicki. Method of increasing the efficiency of a supercritical lignite-fired oxy-type fluidized bed boiler and high-temperature three-end membrane for air separation. In Proceedings of the 25th International Conference ECOS, Perugia, Italy, 26-29 June 2012.
[5] J. Kotowicz and K. Janusz-Szyma´nska. Wpływ systemu separacji CO2 na efektywno´s´c elektrowni w˛ eglowej na parametry nadkrytyczne. Rynek Energii, 2(93):8–12, 2011.
[6] J. Kotowicz, A. Dryja´nska, and A. Balicki. Wpływ wybranych parametrów na sprawno´s´c kotła cfb typu oxy. Rynek Energii, 2(99):120–126, 2012.
[7] Jarosław Milewski, R Bernat, and J Lewandowski. Reducing CO2 emissions from a gas turbine power plant by using a molten carbonate fuel cell. Proceedings of the World Congress on Engineering, 3, 2012.
[8] A. Skorek-Osikowska, Ł. Bartela, J. Kotowicz, and M. Job. Thermodynamic and economic analysis of the dierent variants of a coal-fired, 460 MW power plant using oxycombustion technology. Energy Conversion and Management, 76:109-120, 2013.
Published
2013-12-03
How to Cite
KOTOWICZ, Janusz; BALICKI, Adrian.
Analysis of the thermodynamic and economic effciency of a supercritical power unit with a lignite-fed CFB boiler and an air separation unit based on high-temperature membrane technology.
Journal of Power Technologies, [S.l.], v. 93, n. 5, p. 308--313, dec. 2013.
ISSN 2083-4195.
Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/490>. Date accessed: 05 nov. 2024.
Issue
Section
RDPE 2013 Conference
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