Analysis of Local Heat Exchange in Combustion Chamber and Injection Nozzle of Dual-Fuel Engine
Revaz Zurabovich Kavtaradze1, Dmitry Olegovich Onishchenko2, Andrey Victorovich Kozlov3, Alexey Stanislavovich Terenchenko4, Andrey Sergeevich Golosov5
1Revaz Zurabovich Kavtaradze, Bauman Moscow State Technical University, Moscow, Russia.
2Dmitry Olegovich Onishchenko, Bauman Moscow State Technical University, Moscow, Russia.
3Andrey Victorovich Kozlov, Federal State Unitary Enterprise CentralScientific Research Automo-bileand Automotive Institute “NAMI” (FSUE “NAMI”), Moscow, Russia.
4AlexeyStanislavovichTerenchenko, Federal State Unitary Enterprise Central Scientific Research Automo-bileand Automotive Institute“NAMI” (FSUE “NAMI”), Moscow, Russia.
5Andrey Sergeevich Golosov, Federal State Unitary Enterprise Central Scientific Research Automo-bileand Automotive Institute “FSUE “NAMI”), Moscow, Russia.
Manuscript received on 02 June 2019 | Revised Manuscript received on 10 June 2019 | Manuscript published on 30 June 2019 | PP: 2804-2811 | Volume-8 Issue-8, June 2019 | Retrieval Number: H6999068819/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This work discusses features of local heat exchange in an advanced gas engine with ignition by pilot diesel fuel. Numerical study is performed using 3D nonstationary equations of energy, motion, diffusion, and continuity in the Reynolds form supplemented by k-ζ-f model of turbulence. Simultaneous combustion of gas and diesel fuels is described using the coherent flame model (CFM) supplemented by the model of ignition by pilot diesel fuel. Predictions were performed using AVL FIRE simulation package. As a consequence, the boundary conditions of the second order (local thermal flows) were determined, as well as of the third order (coefficients of heat exchange and gas temperature) with consideration for actual geometry of combustion chamber, gas exchange, and fuel injection. Local thermal loads on injection nozzle have been determined, its thermal stress–strain state has been simulated.
Keyword: Dual-fuel engine, Local heat exchange, Mathematical simulation, Natural gas, Reciprocating engine.
Scope of the Article: Predictive Analysis.