Research Of The Multifunctional Combustion Bomb

Engine Combustion Simulator can use to study the internal combustion engine combustion technologies and alternative fuels, they can solve the internal combustion engine problem of the simulation and control on whole boundary condition. In this thesis, a multifunction combustion bomb will be designed which can used to simulation the combustion of the combustion chamber. The advantages of the device is that,able to change the thermodynamic parameters (including excess air coefficient , temperature and pressure), the ignition parameters, and so on; able to use multi-fuel; can be pre-mixed homogeneous charge compression ignition (HCCI), premixed ignition, injection compression-ignition, and constant-volume combustion of the four modes of combustion test; able to gather the data of the combustion pressure and spectral through data acquisition and control system during the process of combustion.According to the functions that the multifunction combustion bomb should be realized, based on the work principle of rapid compression machine and constant volume combustion bomb, the work principle of the multifunction combustion bomb will be design. According the work principle of the multifunction combustion bomb, the Fuel-air hybrid system, heating system, drive systems, combustion system, fuel injection system and ignition system will be design and machine.According the work principle of the multifunction combustion bomb, the data acquisition and control systems will be design. By using NI PCI-6220 card, the program will be writ in LabVIEW environment, will be used to static data acquisition and control system. The function of the program is to monitor the temperature and pressure of the mixture storage and combustion chamber, and to control the piston motion of the drive system. By using high speed data acquisition device to collect combustion pressure and displacement of piston synchronism, collected the data saved to the hard disk.After the installation of the multifunction combustion bomb is complete, its various systems were debugged. Finally the multifunctional combustion bomb will be proven achieves the design demands by ethanol HCCI combustion experiments.