Results 21 to 30 of about 1,556,072 (396)

CFD Analysis of the Fuel–Air Mixture Formation Process in Passive Prechambers for Use in a High-Pressure Direct Injection (HPDI) Two-Stroke Engine

Energies, 2020
The research on two-stroke engines has been focused lately on the development of direct injection systems for reducing the emissions of hydrocarbons by minimizing the fuel short-circuiting. Low temperature combustion (LTC) may be the next step to further
M. Ciampolini, S. Bigalli, F. Balduzzi, A. Bianchini, L. Romani, G. Ferrara   +5 more
semanticscholar   +1 more source

Modeling of two-stroke aviation piston engines for control applications

Advances in Mechanical Engineering, 2023
Two-stroke Aviation Piston Engines are multivariable systems with severe non-linear dynamics, making their modeling challenging for control engineers. Although many studies have been conducted on simplified modeling of four-stroke gasoline engines and ...
Hanjie Jiang, Ye Zhou, Hann Woei Ho, Elmi Abu Bakar   +3 more
doaj   +1 more source

Systematic Investigation of a Large Two-Stroke Engine Crankshaft Dynamics Model

Energies, 2020
The crankshaft dynamics model is of vital importance to a multitude of aspects on engine diagnostics; however, systematic investigations of such models performance (especially for large two-stroke diesel engines that are widely used in the power ...
K. Tsitsilonis, G. Theotokatos, N. Xiros, M. Habens   +3 more
semanticscholar   +1 more source

Effectiveness of the Speed Reduction Strategy on Exhaust Emissions and Fuel Oil Consumption of a Marine Generator Engine for DC Grid Ships

Journal of Marine Science and Engineering, 2022
Recent developments in power electronics, energy storage systems, and renewable energy; increased market demands for more efficient and cleaner electric power to meet stricter environmental regulations; and development in gigawatt (GW)-class DC (direct ...
Van Chien Pham, Hanseok Kim, Jae-Hyuk Choi, Antony J. Nyongesa, Jongsu Kim, Hyeonmin Jeon, Won-Ju Lee   +6 more
doaj   +1 more source

Mean value first principle engine model for predicting dynamic behaviour of two-stroke marine diesel engine in various ship propulsion operations

International Journal of Naval Architecture and Ocean Engineering, 2022
Analysis of ship propulsion system performance is often performed using detailed hydrodynamic models to assess load changes, which are subsequently compared to static engine limits, or by detailed engine models that are rarely integrated with ...
Congbiao Sui, Peter de Vos, Douwe Stapersma, Klaas Visser, Hans Hopman, Yu Ding   +5 more
doaj   +1 more source

Determining the characteristics for the rational adjusting of an fuel-air mixture composition in a two-stroke engine with internal carburation

, 2020
An operating process for engines with spark ignition and direct fuel injection engines which ensures the formation of a stratified lean fuel-air charge under the modes of partial loads and the power composition of the fuel-air mixture at high loads has ...
V. Korohodskyi, S. Kryshtopa, V. Migal, A. Rogovyi, Andrii Polivyanchuk, G. Slyn’ko, Volodymyr Manoylo, Oleh Vasylenko, O. Osetrov   +8 more
semanticscholar   +1 more source

Catalytic enhancement in the performance of the microscopic two-stroke heat engine. [PDF]

Physical Review E
We consider a model of heat engine operating in the microscopic regime: the two-stroke engine. It produces work and exchanges heat in two discrete strokes that are separated in time.
Tanmoy Biswas, Marcin Łobejko, P. Mazurek, Michał Horodecki   +3 more
semanticscholar   +1 more source

Effects of Various Fuels on Combustion and Emission Characteristics of a Four-Stroke Dual-Fuel Marine Engine

Journal of Marine Science and Engineering, 2021
A numerical study was carried out to investigate the effects of methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), and dimethyl ether (DME) on the combustion and emission characteristics of a four-stroke gas-diesel dual-fuel (DF) marine engine
Van-Chien Pham, B. Rho, Jun-Soo Kim, Won-Ju Lee, Jae-Hyuk Choi   +4 more
semanticscholar   +1 more source

Performance of direct injected propane and gasoline in a high stroke-to-bore ratio SI engine: Pathways to diesel efficiency parity with ultra low soot

International Journal of Engine Research, 2021
This work explores pathways to achieve diesel-like, high-efficiency combustion with stoichiometric 3-way catalyst compatible combustion in a single-cylinder spark ignition (SI) research engine.
D. Splitter, V. Boronat, Fdf Chuahy, John M. E. Storey   +3 more
semanticscholar   +1 more source

Simulation Modeling and Optimization of Uniflow Scavenging System Parameters on Opposed-Piston Two-Stroke Engines

Energies, 2018
Based on the introduction of opposed-piston two-stroke (OP2S) gasoline direct injection (GDI) engines, the OP2S-GDI engine working principle and scavenging process were analyzed.
Fukang Ma, Lei Zhang, Tiexiong Su
doaj   +1 more source