Browse Publications Technical Papers 2007-01-0068
2007-01-23

Modelling of Premixed Laminar Combustion of Hydrogen and Oxygenated Fuels Inside a Closed Spherical Vessel 2007-01-0068

Premixed laminar combustion in closed vessels has been widely used for the evaluation of the combustion characteristics from the fundamental side. Evaluation of the combustion characteristics inside the closed vessel is significant because it provide in a single test run a set of data under varying temperature and pressure conditions, which are relevant for both fundamental combustion studies and engine conditions. In the present work the aim is to investigate the laminar combustion characteristic of the emerging alternative fuels to establish their comparative fundamental combustion behavior under the closed spherical vessel. A novel multiple burnt gas zone has been used to describe the different aspects of premixed laminar combustion of four different fuels: hydrogen, methanol, dimethyl ether, and diesel.
The modelling is performed to determine the comparative study of the temperature distribution within the burned gas for the four different fuels, generation of the pressure at varying equivalence ratios, initial temperatures and pressure conditions. Flame propagation for the four fuels at different initial pressures is studied for the four fuels. The variation of the burned gas products (CO2 CO, and NO) with the mass fraction burned is studied.

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