Thermodynamic analysis and profitability study of a power unit with an added CO2 capture plant

• Autorzy: Kowalczyk Ł. , Niegodajew P. , Drobniak S. , Elsner W.
• Języki publikacji: EN

Abstrakty

EN

Concerns over greenhouse gas emissions are driving a requirement for newly built coal power units to satisfy the so-called “capture ready” conditions. This paper presents the a thermo-economic analysis supplemented by a cost evaluation of a power unit for ultra-supercritical parameters expanded by an amine-based CO2 capture plant. The analysis was performed with the use of an integrated package containing the IPSEpro, MATLAB and Revenue Requirement Method implemented in MOExcel. The 0D model of a post combustion capture installation was developed based on complex CFD calculations of the absorber and stripper. A number of CFD simulations were conducted to create a large database, which was then utilized to develop suitable correlations describing the process Thermodynamic and economic calculations were performed in respect of a power plant coupled with a CO2 separation unit for a varying ratio of amine solvent to the exhaust gas stream (L/G). A local minimum for reboiler heat duty was found for L/G≈3.5 revealing the optimal post combustion capture configuration. It was observed that complementing the power unit with a post-combustion capture (PCC) installation causes a slight increase in the investment costs due to the drop in efficiency, but more important is the rise in total cost due to the investment associated with the CO2 capture plant. It was found that about 14 years is required to compensate the investment cost of the PCC installation.

Słowa kluczowe

EN

ultra-supercritical power plant; thermal cycle; post-combustion capture; CCS; MEA

PL

elektrownia; cykl termiczny; wychwyt wtórny; CCS; MEA

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2016
• Tom: Vol. 96, nr 4
• Strony: 276--284
• Opis fizyczny: Bibliogr. 36 poz., rys., tab., wykr.

Twórcy

autor

Kowalczyk Ł.

• Institute of Thermal Machinery, Częstochowa University of Technology, al. Armii Krajowej 21, 42-200 Częstochowa, Poland

autor

Niegodajew P.

• Institute of Thermal Machinery, Częstochowa University of Technology, al. Armii Krajowej 21, 42-200 Częstochowa, Poland

autor

Drobniak S.

• Institute of Thermal Machinery, Częstochowa University of Technology, al. Armii Krajowej 21, 42-200 Częstochowa, Poland

autor

Elsner W.

• Institute of Thermal Machinery, Częstochowa University of Technology, al. Armii Krajowej 21, 42-200 Częstochowa, Poland

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).