THE STUDY OF THE CONSTRUCTION FRICTION MODEL OF DIESEL ENGINES USING DUAL FUEL DIESEL-ETHANOL

Abstract

Techniques use simulation internal combustion engine model to determine engine performance have been greatly researchers interested in. Using this model, we can predict with reasonable accuracy the heat release rate inside the engine cylinder. Also in conjunction with the volume change rate of the combustion chamber, we can then estimate the indicated power output of the engine. However, in order to obtain the brake engine power output we must have an indication for the mechanical losses, a great part of which are friction losses. According to previous studies that the the frictional mean effective pressure as a function mainly of engine speed, load and cylinder pressure. So the authors study friction modeling of diesel engines using dual fuel diesel-ethanol. The results show that the model accurately predicts the friction loss at the experimental and test regimes of the engine by evaluating the power and torque of the engine.