An Experimental and Numerical Study of N-Dodecane/Butanol Blends for Compression Ignition Engines
AuthorsWakale, Anil Bhaurao
Im, Hong G.
KAUST DepartmentChemical Engineering Program
Clean Combustion Research Center
Combustion and Pyrolysis Chemistry (CPC) Group
Computational Reacting Flow Laboratory (CRFL)
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/627594
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AbstractAlcohols are potential blending agents for diesel that can be effectively used in compression ignition engines. This work investigates the use of n-butanol as a blending component for diesel fuel using experiments and simulations. Dodecane was selected as a surrogate for diesel fuel and various concentrations of n-butanol were added to study ignition characteristics. Ignition delay times for different n-butanol/dodecane blends were measured using the ignition quality tester at KAUST (KR-IQT). The experiments were conducted at pressure of 21 and 18 bar, temperature ranging from 703-843 K and global equivalence ratio of 0.85. A skeletal mechanism for n-dodecane and n-butanol blends with 203 species was developed for numerical simulations. The mechanism was developed by combining n-dodecane skeletal mechanism containing 106 species and a detailed mechanism for all the butanol isomers. The new mixture mechanism was validated for various pressure, temperature and equivalence ratio using a 0-D homogeneous reactor model from CHEMKIN for pure base fuels (n-dodecane and butanol). Computational fluid dynamics (CFD) code, CONVERGE was used to further validate the new mechanism. The new mechanism was able to reproduce the experimental results from IQT at different pressure and temperature conditions.
CitationWakale AB, Mohamed SY, Naser N, Mubarak ali MJ, Banerjee R, et al. (2018) An Experimental and Numerical Study of N-Dodecane/Butanol Blends for Compression Ignition Engines. SAE Technical Paper Series. Available: http://dx.doi.org/10.4271/2018-01-0240.
SponsorsThis work was funded by competitive research funding from King Abdullah University of Science and Technology (KAUST) under the Clean Combustion Research Center internship program in collaboration with IIT Hyderabad. We would like to express our gratitude to Research Scholar Mr. Eshan Singh, for his support in carrying out Experiments at KAUST.
JournalSAE Technical Paper Series
Conference/Event name2018 SAE World Congress Experience, WCX 2018