Results 31 to 40 of about 915,298 (301)

Optimization of Marine Medium Speed Diesel Engine Performance based on Multi-Injector System [PDF]

E3S Web of Conferences, 2021
Multi-injector system is potential to improve thermal efficiency and NOx emission of diesel engine at the same time. In order to optimize the combustion and emission of Marine medium speed diesel engine, the engine combustion with a multi-injector system
Liu Dai, Guo Yingzhu, Liu Long, Xia Qian, Gui Yong   +4 more
doaj   +1 more source

New Insights into Abnormal Combustion Phenomena Induced by Diesel Spray-Wall Impingement under Engine-Relevant Conditions

Energies, 2022
High altitude and low temperature is the common extreme environment for internal combustion engines. Under such operating conditions, heavy-duty diesel engines often suffer from serious abnormal combustion, such as knocking combustion, which results in ...
Zhijie Li, Jie Pan, Wei Li, Xiangting Wang, Haiqiao Wei, Jiaying Pan   +5 more
doaj   +1 more source

Quasi-Dimensional Modelling and Parametric Studies of a Heavy-Duty HCCI Engine

Journal of Combustion, 2011
A quasi-dimensional modelling study is conducted for the first time for a heavy duty, diesel-fuelled, multicylinder engine operating in HCCI mode. This quasidimensional approach involves a zero-dimensional single-zone homogeneous charge compression ...
Sunil Kumar Pandey, Muralitharan N., Ravikrishna R. V.   +2 more
doaj   +1 more source

NH3 combustion using three-layer stratified fuel injection for a large two-stroke marine engine: Experimental verification of the concept

Applications in Energy and Combustion Science, 2022
A unique liquid NH3 spray combustion concept for a compression ignition engine, which applies a ''three-layer stratified fuel injection comprising a supporting fuel / liquid NH3 / supporting fuel (i.e., NH3 stratified injection)” concept, in which the ...
Yasuhisa Ichikawa, Yoichi Niki, Koji Takasaki, Hideaki Kobayashi, Akihiro Miyanagi   +4 more
doaj   +1 more source

Numerical study of novel OME1−6 combustion mechanism and spray combustion at changed ambient environments

Frontiers in Energy
For a climate-neutral future mobility, the so-called e-fuels can play an essential part. Especially, oxygenated e-fuels containing oxygen in their chemical formula have the additional potential to burn with significantly lower soot levels. In particular,
F. Wiesmann, Zeyan Qiu, Dong Han, Lukas Strauβ, Sebastian Rieβ, Michael Wensing, Thomas Lauer   +6 more
semanticscholar   +1 more source

Numerical Prediction on In-Cylinder Mixture Formation and Combustion Characteristics for SIDI Engine Fueled with Hydrogen: Effect of Injection Angle and Equivalence Ratio

Energies, 2023
Although their ease of transport, storage, and use makes hydrocarbon fuels dominant in commercial energy systems, the emission of harmful gases, including greenhouse gases, is a fatal disadvantage.
Sehyun Oh, Jungsoo Park
doaj   +1 more source

Joint Study of Impingement Combustion Simulation and Diesel Visualization Experiment of Variable Injection Pressure in Constant Volume Vessel

Energies, 2020
In this paper, the visualization experiments of spray, ignition, and combustion of diesel under variable injection pressure (from 90 to 130 MPa) were studied by using a constant volume vessel and impinging combustion plate system. With the development of
Yuanzhi Tang, Diming Lou, Chengguan Wang, Piqiang Tan, Zhiyuan Hu, Yunhua Zhang, Liang Fang   +6 more
doaj   +1 more source

Impact of pilot swirling combination on the flow and emission characteristics of staged lean direct injection combustors

Energy Reports, 2022
This paper considers a concentric staged triple swirler lean direct injection (LDI) combustor and conducts numerical analysis to investigate the impact of inner and outer swirl flow of the pilot stage on the spray combustion characteristics and NOx ...
Tao Zhou, Kai Zhao, Feng Li, Kefu Wang, Nan Meng, Duo Wang   +5 more
doaj   +1 more source

In cylinder visualization of stratified combustion of E85 and main sources of soot formation [PDF]

, 2015
The combustion process and soot formation in spark ignited spray guided stratified combustion of E85 was investigated in a single cylinder optical engine with direct injection of fuel using an outward opening piezo actuated injector. The effect of engine
Hemdal, Stina, Johansen, Lars Christian Riis   +1 more
core   +1 more source

A COMPARATIVE ANALYSIS OF SPRAY COMBUSTION OF KAPOK SEED OIL AND JATROPHA OIL AS AN ALTERNATIVE BIOFUEL [PDF]

Journal of Engineering Science and Technology, 2018
This study is aimed to analyse the comparison of the spray combustion using kapok seed oil and jatropha oil through the combustion length, combustion width and combustion stage by using a video camera with the speed of 420 fps in the spray nozzle tester ...
A. WIBOWO, I. N. G.WARDANA, S. WAHYUDI, DENNY W. YANURIYAWAN   +3 more
doaj