ABSTRACT MODELING THE FUEL BURNING RATE IN DIESEL ENGINES

Engineering. A four inch bore, open chamber, semi-quiescent diesel, in the Sloan Test Laboratory was used to study the fuel burning rate of a diesel engine. Operating conditions were adjusted to achieve cases of predominately second stage and third stage combustion. A simple mathematical model of the combustion process was constructed, assuming a perfect gas, and computerized to predict the amount of fuel burned as a function of crank angle. The measured pressure time data from the test engine was used in the computer model. It was necessary to include heat transfer effects to get acceptable agreement with the measured fuel flow rate