Simulation of combustion process in cylinder of compression ignition methanol engine
A four-cylinder compression combustion engine was taken as the research object,and the in-cylinder combustion model of internal combustion engine was established,and calibrated and verified by experimental values.The combustion in the methanol cylinder was studied by changing the operating parameters such as the intake temperature and injection timing of the internal combustion engine.The calculation and analysis results showed that with the increase of intake air temperature,the ignition was advanced,the ignition delay was shortened,the burning area and high temperature area were increased,the temperature of mixture at the top dead center of compression increased,peak pressure value in cylinder decreased,flame front element reaction speed increased;with fuel injection timing advancing,peak pressure and cylinder peak temperature rose.The calculation and analysis results provide a basis for the fuel system design and combustion control of compression ignition methanol engine.
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