Thermodynamic analysis of the double Brayton cycle with the use of oxy combustion and capture of CO2

Archives of Thermodynamics

Oktawia KaczmarczykEnergy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-231 Gda?sk, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Janusz BadurEnergy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-231 Gda?sk, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Pawe? Zió?kowskiCorresponding authorEnergy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-231 Gda?sk, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Witold ZakrzewskiEnergy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-231 Gda?sk, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Energy Conversion Department, The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-231 Gda?sk, Poland

关键词: Keywords : Inverse Brayton cycle;    Brayton cycle;    gas-steam unit;    oxy combustion;    CCS;    thermodynamic analysis;    numerical analysis;    CFM;   

DOI  :  10.2478/aoter-2013-0008

学科分类：能源（综合）

来源: Polska Akademia Nauk * Oddzial w Gdansku, Instytut Maszyn Przeplywowych / Polish Academy of Sciences, Institute of Fluid-Flow Machinery

【 摘 要 】

In this paper, thermodynamic analysis of a proposed innovative double Brayton cycle with the use of oxy combustion and capture of CO2, is presented. For that purpose, the computation flow mechanics (CFM) approach has been developed. The double Brayton cycle (DBC) consists of primary Brayton and secondary inverse Brayton cycle. Inversion means that the role of the compressor and the gas turbine is changed and firstly we have expansion before compression. Additionally, the workingfluid in the DBC with the use of oxy combustion and CO2 capture contains a great amount of H2O and CO2, and the condensation process of steam (H2O) overlaps in negative pressure conditions. The analysis has been done for variants values of the compression ratio, which determines the lowest pressure in the double Brayton cycle.

【 授权许可】

Unknown