Development and Validation of a Reduced Reaction Mechanism for Biodiesel-Fueled Engine Simulations- SAE 2008-01-1378
- ORNL
- University of Wisconsin
In the present study a skeletal chemical reaction mechanism for biodiesel surrogate fuel was developed and validated for multi-dimensional engine combustion simulations. The reduced mechanism was generated from an existing detailed methyl butanoate oxidation mechanism containing 264 species and 1219 reactions. The reduction process included flux analysis, ignition sensitivity analysis, and optimization of reaction rate constants under constant volume conditions. The current reduced mechanism consists of 41 species and 150 reactions and gives predictions in excellent agreement with those of the comprehensive mechanism. In order to validate the mechanism under biodiesel-fueled engine conditions, it was combined with another skeletal mechanism for n-heptane oxidation. This combined reaction mechanism, ERC-Bio, contains 53 species and 156 reactions, which can be used for diesel/biodiesel blend engine simulations. Biodiesel-fueled engine operation was successfully simulated using the ERC-Bio mechanism.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Fuels, Engines and Emissions Research Center (FEERC)
- Sponsoring Organization:
- USDOE Laboratory Directed Research and Development (LDRD) Program
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 936283
- Journal Information:
- Journal of the Society of Automotive Engineers of Japan, Journal Name: Journal of the Society of Automotive Engineers of Japan
- Country of Publication:
- United States
- Language:
- English
Similar Records
A computational investigation of diesel and biodiesel combustion and NOx formation in a light-duty compression ignition engine
A numerical study comparing the combustion and emission characteristics of biodiesel with petrodiesel.