A Numerical Study to Control Combustion Duration of Hydrogen-Fueled HCCI by Using Multi-Zone Chemical Kinetics Simulation 2001-01-0250
An engine cycle simulation code with detailed chemical kinetics has been developed to study Homogeneous Charge Compression Ignition (HCCI) combustion with hydrogen as the fuel. In order to attain adequate combustion duration, resulting from the self-accelerating nature of the chemical reaction, fuel and temperature inhomogeneities have been brought to the calculation by considering the combustion chamber to have various temperature and fuel distributions. Calculations have been done under various conditions including both perfectly homogeneous and inhomogeneous cases, changing the degree of inhomogeneity. The results show that intake gas temperature is more dominant on ignition timing of HCCI than equivalence ratio and that there is a possibility to control HCCI by introducing appropriate temperature inhomogeneity to in-cylinder mixture.
Nissan Motor Co., Ltd., University of Wisconsin-Madison
SAE 2001 World Congress
Advances in Combustion 2001-SP-1574, Hydrogen and Its Future as a Transportation Fuel-PT-95, Homogeneous Charge Compression Ignition (Hcci) Combustion-SP-1623, SAE 2001 Transactions Journal of Engines-V110-3