Energy and exergy analysis of biogas fired regenerative gas turbine cycle with CO2 recirculation for oxy-fuel combustion power generation

Mohammadreza Mohammadpour, Ehsan Houshfar, Mehdi Ashjaee and Amirreza Mohammadpour

Energy, 2021, vol. 220, issue C

Abstract: In this paper, thermodynamic performance of oxy-biogas regenerative gas turbine cycle with CO2 recirculation is evaluated. The CO2 stream is split into the primary and dilution zones. In the primary zone, chemical-equilibrium-model is applied for exergy analysis. Influences of relevant parameters—CO2-to-O2 molar ratio (CtO) in the primary zone and primary diluent ratio (PDR)—on the temperature of combustion chamber (CC) and turbine, net produced power, thermal efficiency, specific fuel consumption (SFC) and CO2 capturing mass flow rate are studied. Decreasing CtO and raising PDR result in high net produced power. Thermal efficiency has a maximum value in the range of CtO (1.5Keywords: Biogas; Oxy-combustion; Gas turbine; CO2 capture and storage; Chemical equilibrium; Exergy analysis (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:220:y:2021:i:c:s0360544220327948

DOI: 10.1016/j.energy.2020.119687

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