In present study mathematical modelling and analysis of conventional and plasma combustion is done using Ansys (Fluent). Performance of two turbulence models, standard k-ε model and SST model, are compared. The effect of particle dispersion on predicted results is found to be insignificant. Pulverized coal fired boilers are basic steam generators in power plants. The conventional start up of this type of boilers require of heavy oil till the pulverised coal burners could start. We compared the

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... oth type of combustion on the basic of mass fraction of CO, CO 2 , NO NO 2 emissions and stability phenomenon in whole systems. Simulations results gives a clear indication that due to increasing resting time of combustion in plasma type , complete combustion is possible and emission percentages is decreasing as compare to the conventional oil fuel . In plasma combustion there is no need oil for start up operation and flame stabilization, that why it is a cost effective method also. Plasma activation of coal particles instead of using fuel-oil burners promotes more effective and environment friendly combustion.