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친환경 연소에 따른 가스 터빈 내 유동 및 성능 특성의 수치해석적 연구
김병욱(Byungwook Kim),마이탄담(Thanh Dam Mai),보두이딴(Duy Tan Vo),장성호(Sungho Chang),유재영(Jaiyoung Ryu) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
The need to reduce greenhouse gas emissions from gas turbines has raised in response to the international demand for greenhouse gas reduction. Eco-friendly combustion, which can be represented by hydrogen combustion and oxy-fuel combustion, have potential of enormous reduction of greenhouse gases. However, previous researches hardly considered about the effect of such combustion in the turbine part. In this study, hydrogen combustion and oxy-fuel combustion simulation were performed to analyze the characteristics of flow in combustor. Quantitative investigation of the gas turbine flow characteristics and performance by each combustion condition were performed by following gas turbine simulation. The gas turbine used for computational analysis is GE-E3 1.5 stage model, and conditions of the flow were based on combustion simulation results. The analysis shows that the output of hydrogen increased due to the fast flow velocity, but the total-to-total efficiency diminished compared to natural gas.