Results 81 to 90 of about 22,726 (315)

A computational study of operating range extension in a natural gas SI engine with the use of hydrogen

, 2015
The performance of a natural gas fueled spark ignition engine was studied to investigate the effect of hydrogen enrichment on the engine operating range and combustion characteristics.
Gharehghani, A., Mirsalim, M., Hosseini, R., Yusaf, Talal F.   +3 more
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Influence of shaft motor/generator on dynamic behavior of natural gas/diesel dual-fuel engine in ship hybrid propulsion system under various operating conditions

International Journal of Naval Architecture and Ocean Engineering
To reduce shipping emissions, natural gas is a viable alternative fuel for marine engines. However, natural gas (or natural gas/diesel dual-fuel) engines exhibit poor dynamic performance, potentially compromising ship safety in adverse conditions.
Rui Wang, Yu Ding, Congbiao Sui, La Xiang   +3 more
doaj   +1 more source

CHOOSING OF PERFORMANCE PARAMETERS OF LIGHT-DUTY ENGINE RUNNING ON NATURAL GAS AND HYDROGEN MIXTURE [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2011
The results of investigation of light-duty gas engine running on natural gas and hydrogen mixture has been given. The mathematical model of combustion process with variable Vibe combus-tion factor for this engine type has been specified.
Y. Dube, R. Maamri, O. Kabanov, F. Abramchuk, L. Toubal, A. Kodjo   +5 more
doaj  

METHOD OF CONVERSION OF HIGH- AND MIDDLE-SPEED DIESEL ENGINES INTO GAS DIESEL ENGINES

Facta Universitatis. Series: Mechanical Engineering, 2017
The paper aims at the development of fuel supply and electronic control systems for boosted high- and middle-speed transport engines. A detailed analysis of different ways of converting diesel engine to operate on natural gas was carried out.
Mikhail G. Shatrov, Vladimir V. Sinyavski, Andrey Yu. Dunin, Ivan G. Shishlov, Andrey V. Vakulenko   +4 more
doaj   +1 more source

Survey for the development of compressed natural gas systems (CNG) for vehicles [PDF]

, 2005
Compressed Natural Gas (CNG) vehicles have been used internationally by fleets for decades. The use of CNG vehicles results in less petroleum consumption, resulting in fewer air pollutants and greenhouse gas emissions in most applications. In Europe, the
Abulamosha, A.M.
core  

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Emission Characteristics of a CI Engine Running with a Range of Biodiesel Feedstocks

, 2014
Currently, alternative fuels are being investigated in detail for application in compression ignition (CI) engines resulting in exciting potential opportunities to increase energy security and reduce gas emissions.
Gu, Fengshou, Ball, Andrew, Fengshou Gu, Rakesh Mishra, Andrew Ball, Tesfa, Belachew, Mishra, Rakesh, Belachew Tesfa   +7 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Assessment of CH₄ Emissions in a Compressed Natural Gas-Adapted Engine in the Context of Changes in the Equivalence Ratio

Energies
The results of diagnostic tests under steady-state speed conditions of an unloaded engine do not fully reflect the emissivity of vehicles adapted to run on natural gas.
Artur Jaworski, Hubert Kuszewski, Krzysztof Balawender, Paweł Woś, Krzysztof Lew, Mirosław Jaremcio   +5 more
doaj   +1 more source