Abstract
Fuel air mixture, completely evaporated and mixed in a closed vessel, was ignited at one end by an electric spark. Recording the arrivals of the flame front at the fixed points on the way of its propagation by the use of electric conductivity of the flame, the locus and velocity of the propagation have been found out. At the same time variations of the combustion pressure were recorded on the same oscillogram. The experiments were carried out with many kinds of liquid fuels under the different initial conditions. One of the main results of this experiment is that benzene and alcohol have greater flame velocities and increase the flame velocity of petrol by blending with them. Therefore, the increase in flame velocity is one of the reasons why these mixed fuels show more resistance for knocking.
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More From: Transactions of the Japan Society of Mechanical Engineers
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