Abstract
The future internal-combustion (IC) engines should have minimum emissions level under lowest feasible fuel consumption. This aim can be achievable with a homogeneous combustion process in diesel engines. We used a porous medium (PM) to homogenize the combustion process. This research studies simulation of a direct-injection diesel engine, equipped with a chemically inert hemispherical PM. Methane is injected into a hot PM, assuming mounted up the cylinder in head. Combustion with lean mixture occurs inside PM. A numerical model of PM engine was carried out using a modified version of the KIVA-3V code. PM results were evaluated with experimental data of unsteady combustion-wave of methane in a porous tube. The results show the mass fraction of methane, CO, NO and temperature in solid and gas phases of the PM and in-cylinder fluid. Also presented are the effects of injection timing and compression ratio on combustion.
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Arash Mohammadi recived B.S., MS.C., and Ph.D. in Mechanical Engineering from Kerman University, Shiraz University and KNT University of Technology, respectively. In 2015, he joined Shahid Rajaee Univerity as Assistant Professor. His research interests and activity include CFD, IC engines, Combustion in porous media, two phase flow simulation.
Mostafa Varmazyar recived his B.S, M.S. and Ph.D. in Mechanical Engineering from Iranian university of Science and Technology, KNT University of Technology, respectively. In 2014, he joined Shahid Rajaee University as assistant professor. His research interests and activity include lattice Boltzmann method and supercritical fluid flow simulation.
Reza Hamzeloo received his B.S. in Manufacturing from University of Tabriz, and M.S. and Ph.D. in Mechanical Engineering from Amirkabir University of Technology in 2007 and 2012, respectively. He is currently an Assistant Professor at Shahid Rajaee University. His main activity and interest focus on structural health monitoring, mechatronics, manufacturing procedures and analysis with finite element method.
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Mohammadi, A., Varmazyar, M. & Hamzeloo, R. Simulation of combustion in a porous-medium diesel engine. J Mech Sci Technol 32, 2327–2337 (2018). https://doi.org/10.1007/s12206-018-0444-x
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DOI: https://doi.org/10.1007/s12206-018-0444-x