Analysis of the use of waste heat in the oxy-combustion power plant to replace the steam cycle heat regeneration

• Autorzy: Job M. , Bartela Ł. , Skorek-Osikowska A.
• Języki publikacji: EN

Abstrakty

EN

Oxy-combustion technology is based on the burning of fuel in an oxidant atmosphere with increased proportion of oxygen. By eliminating the nitrogen from the combustion process flue gas mainly consist of carbon dioxide and water vapor, allowing for the separation of CO2 from flue gas at a relatively low energy cost. Yet, production of high purity oxygen is bound with significant electricity consumption. The object of the analysis is a supercritical oxy-combustion coal-fired power plant. Auxiliary power demand is associated with the work of compressors in the cryogenic air separation unit and the installation of flue gas conditioning. The paper presents the results of thermodynamic analysis for different cases of compression installations organization extracted from individual blocks of the oxy-combustion unit. Analyzes were aimed to identify the potential for reducing energy consumption in the compression process by its appropriate organization and to define the energy potential of using the heat recovered in cooling and condensation in the individual sub-processes to replace the low-pressure regeneration.

Słowa kluczowe

EN

thermodynamic analysis; oxy-combustion; gas compression; replacement of regenerative heat exchangers

PL

analiza termodynamiczna; oksyspalanie; sprężanie gazu; wymiana regeneracyjnych wymienników ciepła

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2013
• Tom: Vol. 93, nr 3
• Strony: 133--141
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Job M.

• Institute of Power Engineering and Power Turbomachinery, Silesian University of Technology, Poland

autor

Bartela Ł.

• Institute of Power Engineering and Power Turbomachinery, Silesian University of Technology, Poland

autor

Skorek-Osikowska A.

• Institute of Power Engineering and Power Turbomachinery, Silesian University of Technology, Poland

Bibliografia

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