Results 21 to 30 of about 915,298 (301)

Challenges in charge preparation and combustion in homogeneous charge compression ignition engines with biodiesel: A review

open access: yesEnergy Reports, 2019
Homogeneous charge compression ignition (HCCI) engines have high efficiency and lower NOx-soot emissions than diesel and gasoline engines. However, these engines suffer from high HC, CO and unregulated emissions and combustion phasing control.
V.D. Chaudhari, D. Deshmukh
doaj   +1 more source

Effects of Injector Spray Angle on Performance of an Opposed-Piston Free-Piston Engine

open access: yesEnergies, 2020
A free-piston engine is a novel internal combustion engine which has the advantages of a variable compression ratio and multi-fuel adaptability. This paper focuses on numerical simulation for combustion process and spray angle optimization of an opposed ...
Qinglin Zhang   +3 more
doaj   +1 more source

Impact of Spray Cone Angle on the Performances of Methane/Diesel RCCI Engine Combustion under Low Load Operating Conditions

open access: yesEntropy, 2022
The behaviors of spray, in Reactivity Controlled Combustion Ignition (RCCI) dual fuel engine and subsequent emissions formation, are numerically addressed.
Fathi Hamdi   +6 more
semanticscholar   +1 more source

The Possibility of Active Attitude Control for Fuel Spray

open access: yesEngineering, 2019
The internal combustion engine (ICE) is an attractive power source for automobiles, with its superior storability, transportability, and suppliability of liquid fuel with high energy density.
Masataka Arai
doaj   +1 more source

Interpretative Review of Diesel Spray Penetration Normalized by Length and Time of Breakup (Similarity Law of Diesel Spray and Its Application)

open access: yesEnergies, 2022
Tip penetration of diesel spray is one of the most useful parameters to evaluate diesel combustion dynamics. It has strong relationships with ignition delay, premix/diffusion combustion and engine performance, including exhaust emissions.
Masataka Arai
doaj   +1 more source

Examination of diesel spray combustion in supercritical ambient fluid using large-eddy simulations

open access: yesInternational Journal of Engine Research, 2020
High-pressure conditions in diesel engines can often surpass the thermodynamic critical limit of the working fluid. Consequently, the injection of fuel at these conditions can lead to complex behaviors that remain only incompletely understood. This study
Wai Tong Chung, P. Ma, M. Ihme
semanticscholar   +1 more source

Effects of injection pressure and impingement distance on flat-wall impinging spray flame and its heat flux under diesel engine-like condition

open access: yesAdvances in Mechanical Engineering, 2019
Heat loss is one of the main causes of energy losses in modern direct injection diesel engines. This heat loss of the engine occurs during combustion, mainly due to the heat transfer between the impinging spray flame and the piston cavity wall.
Rizal Mahmud   +5 more
doaj   +1 more source

Numerical Study of Knocking Combustion in a Heavy-Duty Engine under Plateau Conditions

open access: yesEnergies, 2022
Diesel engine combustion becomes very rough and can lead even lead to deflagration under high altitude conditions, which is harmful to component durability.
Haiying Li   +7 more
doaj   +1 more source

Observation of OME-diesel blends spray injected by a single-hole nozzle injector under engine-relevant conditions

open access: yesNihon Kikai Gakkai ronbunshu, 2021
The fuel generated from CO2 and H2 derived from renewable energy is called “e-fuel”. Among the e-fuels, polyoxymethylene dimethyl ether (OME) is expected as a promising drop-in fuel for CI engines because it has good ignitability and low-soot combustion ...
Ouga SASAKI   +6 more
doaj   +1 more source

Computational Modeling of Diesel Spray Combustion with Multiple Injections

open access: yesSAE technical paper series, 2020
Multiple injection strategies are commonly used in conventional Diesel engines due to the flexibility for optimizing heat-release timing with a consequent improvement in fuel economy and engine-out emissions.
Qiyan Zhou   +5 more
semanticscholar   +1 more source

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