University of Utah
75 S 2000 E
SALT LAKE CITY, UT 84112 801/581-6903
NSF Program(s):
WESTERN EUROPE PROGRAM, ENGINEERING RESEARCH CENTERS, ENVIRONMENTAL ENGINEERING, PARTICULATE &MULTIPHASE PROCES, COMBUSTION, FIRE, & PLASMA SYS, SPECIAL STUDIES AND ANALYSES
Field Application(s):
Program Reference Code(s):
OTHR, 1674, 0000
Program Element Code(s):
5980, 1480, 1440, 1415, 1407, 1385
ABSTRACT
The focus of this NIRT project on Investigating Nano-carbon Particles in the Atmosphere: Formation and Transormation is to gain a clearer understanding of the chemical and physical processes occurring in the formation of carbon nanoparticles and their subsequent transformation in the diesel engine exhaust. The project has three thrust areas: (1) development of theoretical and experimental methodologies to describe the formation of heavier hydrocarbons and particle inception; (2) modeling and measurement of the particle size distribution of nanoparticles formed in combustion and diesel exhaust; and (3) modeling of the optical properties of soot precursors an soot as it ages. This project includes a collaboration with the University of Naples, Italy. The Italian investigators will contribute to this activity by several measurements including optical measurements in flames, and conagulation models.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
A Violi, A. Venhatnathan. "Combustion generated nanoparticles produced ina benzene flame: a multiscale approach," J. Chem Phys, v.125, 2006, p. 0544302.
A. Violi
. "Modeling of Soot Particle Inception in Aromatic and Aliphatic Premixed Flames," Combustion and Flame, v.139, 2004, p. 279.
A. Violi, G. A Voth. "A multi-scale computational approach for nanoparticle growth in combustion environments," High performance computing & communications, Proceedings Lecture Note in Comp Sci, v.3726, 2005, p. 938.
A. Violi, G. A Voth, A. F. Sarofim. "The relative roles of acetylene and aromatic precursors during soot particle inception," Proc of combustion institute, v.30, 2005, p. 1343.
A. Violi, S. Izvekov. "Soot primary particle formation from multischale coarse-grained molecular dynamics simulation," Proc of combustion institute, v.31, 2007, p. 529.
S. H. Chung. A. Violi. "Insights on the Nanoparticle formation process in counterflow diffusion flames," Carbon, v.45, 2007, p. 2400.
S. Izvekov, A. Violi. "Systematic coarse-graining of nanoparticle interactions in molecular dynamics simulation," J. of Physical Chemistry B, v.109, 2005, p. 17019.
S. Izvekov, A. Violi. "A coarse-grained molecular dynamics study of carbon nanoparticle aggregration," J. Chem Theory Comput, v.2, 2006, p. 504.
S. L. Fiedler, S. Izvekov, A. Vioi. "The effect of temperature on nanoparticle clustering," Carbon, v.45, 2007, p. 1786.
Yan, SH; Jiang, YJ; Marsh, ND; Eddings, EG; Sarofim, AF; Pugmire, RJ. "Study of the evolution of soot from various fuels," ENERGY & FUELS, v.19, 2005, p. 1804-1811.
Zhiru Ma, et al.. "Solid State Effects on the 13C NMR Chemical Shifts Tensor Principal Values of 4,7 di t butylacenaphthene and 4,7 di t butylacenaphthylene: Evidence of Intermolecular Shielding due to Molecular Magnetic Susceptibility," J. Phys. Chem A, v.111, 2007, p. 2020.
