| Recently,the position of gas turbine in the power generation market grows very fast because of its benefits such as relatively high efficiency and low emissions of pollutants.Due to such characteristics,gas turbine is the most commonly used as power generation systems.The traditional gas turbine is operated using natural gas as fuel composed methane but the combustion of low heating value gases composed high hydrogen carbon will become increasingly important as premium fuels are depleted.Fuel variability has profound influences upon four combustor operability issues: blowout,flashback,combustion instability,and auto-ignition.In addition,during the transient operating state of the fuel changes,each component shows low performance and even operability of a gas turbine itself can be a critical problem.Accordingly,a clear understanding of transient behavior of a gas turbine is required to establish adequate control strategies,thus to avoid unstable and dangerous operation.In order to cope actively with the transient behaviors of gas turbine for power generation during fuel heating value variations and fuel composition.The present study numerically investigated dynamic performance on the effect of changes in fuel heating value and fuel composition. |
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