Results 41 to 50 of about 10,186 (228)

A shock tube study of fuel concentration effect on high-pressure autoignition delay of ammonia

Applications in Energy and Combustion Science, 2023
Fulfilling the role of ammonia as a viable energy vector and clean alternative fuel for combustion systems requires an improved understanding of its fundamental chemical kinetics. In this work, autoignition delay time (IDT) measurements of ammonia/oxygen/
Yuzhe Peng, Devesh Ranjan, Wenting Sun
doaj   +1 more source

Imaging gas in a combustion engine with high‐energy X‐ray Compton scattering

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 788-793, May 2026.
Compton‐scattering imaging has been applied to a combustion engine under operation for the first time. With a time‐resolved technique, a crank‐angle dependency of Compton‐scattered X‐ray intensity is obtained at different positions in a combustion chamber.We have developed a time‐resolved Compton‐scattering imaging technique for visualizing gas ...
Yuki Mizuno, Hiroaki Suzuki, Naruki Tsuji, Takuyo Oguchi, Go Matsubara, Hiroyuki Yamase, Yoshiharu Sakurai   +6 more
wiley   +1 more source

Autoignition temperature of alcohol/air mixtures

Chemical Engineering Transactions, 2022
The alcohol/air mixtures are successful in the practical use as gasoline and diesel fuel additives and this has motivated the full investigation of their combustion chemistry.
Jan Poledník, Tomáš Jastrzembski, David Rybanský, Jan Skrínský   +3 more
doaj   +1 more source

Fuel Consumption and Emissions Reductions of Hybrid Electric Regional‐Haul Trucks Equipped with a High‐Pressure Direct Injection Natural Gas Engine in Real‐World Driving Conditions

Energy Technology, Volume 14, Issue 4, April 2026.
Integrating powertrain electrification with efficient engines using low‐carbon fuels like natural gas (NG) improves energy conversion efficiency and mitigates greenhouse gas (GHG) emissions in heavy‐duty (HD) trucks. High‐pressure direct injection (HPDI) NG engines, using less than 5% diesel (energy basis) as pilot fuel, offer diesel‐like efficiency ...
Sina Moghadasi, Navid Balazadeh‐Meresht, Gordon McTaggart‐Cowan, Mahdi Shahbakhti   +3 more
wiley   +1 more source

Construction of a Small-Sized Simplified Chemical Kinetics Model for the Simulation of n-Propylcyclohexane Combustion Properties

Energies
The development of a compact mechanism has made a great contribution to work on the combustion of hydrocarbon species and facilitates the investigations on chemical kinetics and computational fluid dynamics (CFD) studies.
Hossein S. Saraee, Kevin J. Hughes, Mohamed Pourkashanian   +2 more
doaj   +1 more source

Energy attenuation behavior on propane–air premixed combustion on account of nonmetallic spherical spacers in confined space with two perforated plates

Energy Science & Engineering, 2023
Energy attenuation behavior on propane premixed combustion on account of nonmetallic spherical spacers (NSSs) was investigated in a constant volume combustion bomb with two accelerative perforated plates.
Huwei Dai, Dasuo Yao, Yangyang Yu, Junhong Zhang, Dan Wang   +4 more
doaj   +1 more source

Combustion regimes in sequential combustors: Flame propagation and autoignition at elevated temperature and pressure

, 2018
This numerical study investigates the combustion modes in the second stage of a sequential combustor at atmospheric and high pressure. The sequential burner (SB) features a mixing section with fuel injection into a hot vitiated crossflow.
Noiray, Nicolas, Schulz, Oliver
core   +1 more source

Modeling and Experimental Study of a Dual‐Receiver Parabolic Solar Concentrator for Direct Electricity Generation and Thermal Storage for Isolated Sites

Energy Science &Engineering, Volume 14, Issue 4, Page 2206-2224, April 2026.
Approximately 64% of the population in sub‐Saharan Africa lacks access to electricity, despite the region's high solar potential, making concentrated solar power a promising solution for decentralized and sustainable energy supply. This study presents the design, construction, and testing of a parabolic solar concentrator with two focal‐point receivers
Sani Dan Nomao Harouna, Nabil Alkassoum, Noma Talibi Soumaila, Ali Aboubacar, Hamza Abarchi Halarou, Boubou Bagre, Makinta Boukar   +6 more
wiley   +1 more source

Stratospheric cruise emission reduction program [PDF]

, 1977
A recently implemented NASA effort specifically aimed at reducing cruise oxides of nitrogen from high-altitude aircraft is discussed. The desired emission levels and the combustor technology required to achieve them are discussed. A brief overview of the
Diehl, L. A., Marek, C. J., Reck, G. M., Szaniszlo, A. J.   +3 more
core   +1 more source

Computational Analysis of Spray Angle Effects on Combustion and Emissions in Methane‐Diesel Dual‐Fuel Engine

Energy Science &Engineering, Volume 14, Issue 3, Page 1100-1112, March 2026.
This study concluded that wider spray angles produce wall impingement and greater unburned hydrocarbons in methane‐diesel dual‐fuel engines, whereas 110° balances efficiency and emissions. ABSTRACT A diesel methane dual fuel engine appears as a potential means for lowering emissions while retaining useful thermal efficiency.
Abdullah Al Rifat, Md. Arafat Rahman, Md. Mizanur Rahman, Tafsirul Hassan, Md Nazmul Haque   +4 more
wiley   +1 more source