A study of transcritical carbon dioxide cycles with heat regeneration

• Autorzy: Trela M. , Kwidziński R. , Butrymowicz D.
• Języki publikacji: EN

Abstrakty

EN

The paper presents an efficiency analysis of two transcritical CO₂ power cycles with regenerative heaters. For the proposed cycles, calculations of thermal efficiency are given for selected values of operating parameters. It was assumed that the highest working temperature and pressure are in the range from 600 to 700°C and 40 to 50 MPa, respectively. The purpose of the calculations was optimization of the pressure and mass flows in the regenerative heaters to achieve maximum cycle efficiency. It follows that for the assumed upper CO₂ parameters, efficiency of 51-54% can be reached, which is comparable to the efficiency of a supercritical advanced power cycle considered by Dostal.

Słowa kluczowe

EN

CO2 thermodynamic cycle; near-critical region; heat regeneration; thermal efficiency

PL

CO2; cykl termodynamiczny; obszar około-krytyczny; regeneracja ciepła; sprawność cieplna

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2013
• Tom: Vol. 34, no. 3
• Strony: 197--217
• Opis fizyczny: Bibliogr. 13 poz., il.

Twórcy

autor

Trela M.

• University of Warmia and Mazury, Faculty of Technical Sciences, Oczapowskiego 11, 10-719 Olsztyn, Poland

autor

Kwidziński R.

• The Szewalski Institute of Fluid Flow Machinery of the Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland

autor

Butrymowicz D.

• The Szewalski Institute of Fluid Flow Machinery of the Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland

Bibliografia

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