Constant Volume The Development Of The Incendiary

Constant Volume Combustion Bomb is a device which can simulate the combustion of the engine.It is good for both theoretical analysis and practical application. Combustion can be analyzed comprehensively by being combined with the engine test, simulation of combustion processes and other means.The device is constituted by heating and controling system,gas pipeline system,ignition system,data acquisition and control systems,as Well as the combustion bomb.By using the Advantech PCI1712L card,and its' DLL driver,the program had been written in the LabVIEW8.5 environment for data acquisition and control.The aim of the continuous high-speed data acquisition and preservation for the temperature and pressure data,and also the ignition control function had been achieved.Experiments show that the constant combustion bomb applies to the study of homogeneous constant volume combustion and combustion of different fuels.It is used to anolog the combustion of the combustion chamber when the piston is at top dead center.It is characterized by simple structure,which can easily change the thermodynamic parameters(including air-fuel ratio,residual gas coefficient,pressure and temperature),the ignition parameters(spark plug location,the electrode gap and ignition energy) and so on.Impacts of these parameters on combustion process can be studied.By changing the pressure of gas-and-air and the temperature and pressure of the mixed gas after combustion,different gas status of different engines when injecting can be easily simulated.