Economic evaluation of A-USC power plant with CO2 capture unit

• Autorzy: Stępczyńska-Drygas K. , Dykas S. , Łukowicz H. , Czaja D.
• Języki publikacji: EN

Abstrakty

EN

Achieving CO2 emission control while keeping electricity prices competitive is one of the most important economic and technical challenges. The strategy for lowering the CO2 emission from the coal-based power plants includes first of all raising electricity generation efficiency. Currently, steam temperatures in ultra-supercritical (USC) power plants are limited to approximately 627ºC by the use of the most advanced commercially available ferritic steels. To go to higher temperatures, high-nickel alloys must be used. The nickel alloys are at an advanced stage of development and are expected to be available to support construction of a demonstration plant in Europe in 2021. For pulverized coal (PC) plants the development means progressing to advanced ultra-supercritical (A-USC) steam conditions - 35MPa/700/720ºC. It turned out that the concept consists in gradually raising the live steam temperature and pressure can become economically unjustified. Cost-effectiveness of new investments can be provided only by a significant increase in the efficiency of electricity generation. In the paper the economic evaluation of 900 MW PC unit is presented. The main aim is to compare the cost of electricity generation in USC (28MPa/600/620ºC) and A-USC (35MPa/700/720ºC) power unit. The variants with CO2 capture installation by chemical absorption MEA are considered. Compared to a USC design, the capital cost of the A-USC PC plant will be higher, but the operating cost will be lower. Because of the higher efficiency of the A-USC plant, the differential in operating cost increases as fuel price increases and CO2 cost charges are included.

Słowa kluczowe

EN

A-USC power plant; EPC power plant; CO2 capture system

PL

elektrownia A-USC; elektrownia EPC; wychwytywanie CO2

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2015
• Tom: Vol. 95, spec.
• Strony: 75--83
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Stępczyńska-Drygas K.

• Silesian University of Technology, Gliwice 44-100, Poland

autor

Dykas S.

• Silesian University of Technology, Gliwice 44-100, Poland

autor

Łukowicz H.

• Silesian University of Technology, Gliwice 44-100, Poland

autor

Czaja D.

• Silesian University of Technology, Gliwice 44-100, Poland

Bibliografia

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Uwagi

PL

Tytuł numeru spec. "Polish Energy Mix 2014"