Analysed Outlet Ignition Energy Of The Plasma Ignition With Numerical Simulation Method

The ignition of the combustor is the important problem during the startup of the gas turbine. by it, can import the energy to the combustor, ignites host fuel torch directly; Or make a little fuel be burning first, forming firing torch, and then depend on it, ignites the host fuel torch of the combustor. When the host flame of the combustor could maintain stably, firing process is over at this point.The plasma ignition is one of the new ignition device that produced when the plasma technology applied in the power and energy project domain. High density energy of the plasma ignition carries on the heat and chemical effect to the air and the fuel mixture, produced a great deal plasma activation carrier. The air and fog fuel experienced extremely complex process, which involves the turbulence folw, heat transfer, chemical reaction, radiation and so on. For the non-linear controls simultaneous differential equation that descript the process we can not solve it with the analysis law. As for the burning equipment if we can not profoundly understand and accurately descripe its work process, that will difficult to construct effective equipment.This article has carried on the three dimensional simulation to the combustion process that in the plasma ignition, constituting some the equations which reflect the flow law and building many mathematical models of physical and chemical reactions in the plasma ignition: applying k -εturbulence model to calculate the turbulence parameters; applying the non-premixed combustion model to simulate the turbulence combustion; applying the DO model to simulate the radiation heat transfer. Using the mixing format to disperse the equations and applying SIMPLE algorithm method to solve pressure-velocity coupling.Through the numerical simulation, discussed impact on the parameters by changed the air coefficient, these parameters include the composition of the combustion, internal energy, chemical energy and the total energy in the outlet of the plasma ignition by changed the air coefficient Analysed the impact on the parameters that have mentioned above in the outlet of the plasma ignition through changed the combustion composition. These results are significant to design and improve the plasma ignition.