Results 61 to 70 of about 14,848 (204)

A Review of Marine Dual-Fuel Engine New Combustion Technology: Turbulent Jet-Controlled Premixed-Diffusion Multi-Mode Combustion

Energies
Driven by stringent emission regulations, advanced combustion modes utilizing turbulent jet ignition technology are pivotal for enhancing the performance of marine low-speed natural gas dual-fuel engines.
Jianlin Cao, Zebang Liu, Hao Shi, Dongsheng Dong, Shuping Kang, Lingxu Bu   +5 more
doaj   +1 more source

LES of n-Dodecane Spray Combustion Using a Multiple Representative Interactive Flamelets Model

Oil & Gas Science and Technology, 2017
A single-hole n-dodecane spray flame is studied in a Large-Eddy Simulation (LES) framework under Diesel-relevant conditions using a Multiple Representative Interactive Flamelets (MRIF) combustion model. Diesel spray combustion is strongly affected by the
Davidovic Marco, Falkenstein Tobias, Bode Mathis, Cai Liming, Kang Seongwon, Hinrichs Jörn, Pitsch Heinz   +6 more
doaj   +1 more source

Advances on Deflagration to Detonation Transition Methods in Pulse Detonation Engines

Energies
Pulse detonation engines (PDEs) have become a transformative technology in the field of aerospace propulsion due to the high thermal efficiency of detonation combustion. However, initiating detonation waves within a limited space and time is key to their
Zhiwu Wang, Weifeng Qin, Lisi Wei, Zixu Zhang, Yuxiang Hui   +4 more
doaj   +1 more source

Spray characteristics of a multi-hole injector for direct-injection gasoline engines [PDF]

, 2006
The sprays from a high-pressure multi-hole nozzle injected into a constant-volume chamber have been visualized and quantified in terms of droplet velocity and diameter with a two-component phase Doppler anemometry (PDA) system at injection pressures up ...
Arcoumanis, C., Gavaises, M., Mitroglou, N., Nouri, J. M.   +3 more
core   +1 more source

CFD Simulation of Pre-Chamber Spark-Ignition Large Bore CNG Engine: Model Development, Practical Applications, and Experimental Validation

Energies
This study develops and validates a three-dimensional CFD model for a 12 L large-bore active-type pre-chamber spark-ignition (PCSI) engine fueled by natural gas.
Soo-Jin Jeong, Seokpan Seo, Seong-Joon Moon   +2 more
doaj   +1 more source

Further experimental results on the structure and acoustics of turbulent jet flames [PDF]

, 1975
The structure of open turbulent jet flames is experimentally studied in the context of their noise emission characteristics. The differences between premixed and (co-flow) non-premixed flames are explored.
Kumar, R. N.
core  

Experimental Study of the Performance of Turbo-Charged Gasoline Direct-Injection Engine Based on Different Pre-Chamber Structures

Energies
In this paper, in order to improve the fuel economy of the actual application of the engine under multi-operating conditions, an experimental study is carried out on a turbo-charged direct-injection engine based on different pre-chamber structures.
Xiaowei Zhao, Yuedong Sun, Zhendong Zhang, Congbo Yin   +3 more
doaj   +1 more source

An SMLD joint PDF model for turbulent non-premixed combustion using the flamelet progress-variable approach

, 2015
This paper provides an improved flamelet/progress variable (FPV) model for the simulation of turbulent combustion, employing the statistically most likely distribution (SMLD) approach for the joint probability density function (PDF) of the mixture ...
Coclite, Alessandro, Cutrone, Luigi, De Palma, Pietro, Ihme, Matthias, Pascazio, Giuseppe   +4 more
core   +1 more source

Experimental investigation on the effect of compression ratio on detonation combustion characteristics of active pre-chamber engine

Case Studies in Thermal Engineering
Turbulent Jet Ignition (TJI) engines show promising potential for enhancing engine efficiency. However, they differ significantly from conventional spark ignition engines in terms of in-cylinder combustion modes, rendering traditional detonation ...
Jingxun Yang, Fangxi Xie, Xiaoping Li, Beiping Jiang, Zhaohui Jin, Bo shen, Yu Liu   +6 more
doaj   +1 more source

Diffusive ignition and combustion in a wall jet [PDF]

Hydrogen is injected from a downstream facing step in a wall into a high-temperature stream. Temperature and hydroxyl radical concentration are measured downstream of the injection plane by means of ultraviolet absorption spectroscopy.
Gaugler, R. E., Kurkov, A. P.
core   +1 more source