Results 51 to 60 of about 373,196 (153)

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

The Canadian Journal of Chemical Engineering, Volume 104, Issue 9, Page 4787-4808, September 2026.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada, Saleh S. Baakeem, Mabkhot BinDahbag, M. Daniela Contreras‐Mateus, Jesus Botett, Afif Hethnawi, Nashaat N. Nassar   +6 more
wiley   +1 more source

The Synthesis and Mechanism of AlB2‐KAlF4 Composites Prepared by Self‐Propagating High Temperature Synthesis Method

Engineering Reports, Volume 8, Issue 9, September 2026.
AlB2‐KAlF4 composites were fabricated via SHS using Al and KBF4. Phase evolution, microstructure, and reaction mechanism were characterized. KBF4/Al melting initiates the reaction; BF3‐Al redox yields AlB2 and KAIF4 with distinct morphologies. ABSTRACT Using Al and KBF4 as raw materials, AlB2‐KAlF4 composites were synthesized by self‐propagating high ...
Yu Li, Pan Yang, Weijun Tian
wiley   +1 more source

Non-premixed ammonia combustion in porous media to promote thermal cracking of NH3: A low-emission burner concept

Applications in Energy and Combustion Science
This study investigates spatially-distributed, non-premixed ammonia/air combustion in porous media burners (PMBs) as a strategy to mitigate NOx emissions and improve flame stability, two key challenges for ammonia as a carbon-free fuel.
D. Kretzler, R. Puri, B. Stelzner, T. Zirwes, G. Vignat, F.P. Hagen, O.T. Stein, M. Ihme, D. Trimis   +8 more
doaj   +1 more source

Hydrogen‐Enriched Tri‐Fuel Combustion for Low‐Carbon Engines at Medium Engine Load: A Comprehensive CFD Analysis

Energy Science &Engineering, Volume 14, Issue 9, Page 4130-4151, September 2026.
CFD analysis of a diesel–CH4–H2 tri‐fuel engine shows that increasing hydrogen energy share (HES) enhances mixing and accelerates combustion, improving pressure, efficiency, and reducing CO and soot. At 60% HES, ISFC improves 26.2%, soot drops 95%, while NOx increases due to higher temperatures. ABSTRACT The global commitment to achieve net‐zero carbon
Md. Ifthaker Alam, Tafsirul Hassan, Md Imtiaz Hossen, Md. Shaib Hossain, Bandhon Saha Bijoy   +4 more
wiley   +1 more source

Effect of HBr on Explosion Limits of Stoichiometric Hydrogen‐oxygen Mixture

International Journal of Chemical Kinetics, Volume 58, Issue 9, Page 646-657, September 2026.
ABSTRACT This work, based on numerical simulations, discusses the effect of HBr as an inhibitor on the explosion limit of stoichiometric hydrogen‐oxygen gas mixture in a closed spherical vessel. The numerical simulation solves the complete governing equations for mass, momentum, species and energy.
Chunkan Yu, Peter Glarborg
wiley   +1 more source

Perfluorohexanone for Clean Fire Suppression: Mechanisms, System Design, Applications, and Future Directions

Safety Science and Technology, Volume 1, Issue 3, September 2026.
Driven by halon and high GWP agent phase out, perfluorohexanone is increasingly deployed in enclosures such as data centers, marine machinery spaces, and industrial process lines. This review summarizes application performance, discharge and distribution design, material compatibility, and byproduct control and maps practical gaps for large volume and ...
Zhilei Yu, Haibin Dong, Yanfeng Sheng, Xuelei Xian, Dehua Zhang, Feiran Li, Liang Liu, Junchao Zhao, Heping Zhang   +8 more
wiley   +1 more source

Experimental Study on Laminar Burning Velocity and Flame Instability of Liquefied Petroleum Gas/Dimethyl Ether Blended Gas: Effects of Equivalence Ratio and Blended Ratio

Safety Science and Technology, Volume 1, Issue 3, September 2026.
This study reveals the regulatory effect of LPG addition on laminar burning velocity of DME/air mixtures, and elucidates the governing mechanisms of flame instability under varying initial conditions. ABSTRACT Liquefied petroleum gas/dimethyl ether (LPG/DME) blended gas is a promising clean alternative fuel, characterized by high efficiency and clean ...
Qi Zhang, Bowen Liu, Zezheng Miao, Gang Zhou, Wenchao Song, Jun Wang, Yixiang Fu, Kunyu Li, Hongda Cao, Yuhang Ji, Xiajiaoyang Ning, Yi Xie, Yang Kong   +12 more
wiley   +1 more source

Partially-charged advanced low-temperature combustion in diesel engine: Progress and prospects

Alexandria Engineering Journal
Stringent mandates relating to emission management forced scientists, engine manufacturers, and policymakers to have more tightly bound relationships aiming at the strategies of cleaner combustion and more efficient fuel use from internal combustion ...
Thanh Tuan Le, Dhinesh Balasubramanian, Anh Tuan Le, Dao Nam Cao, Wei-Hsin Chen, Inbanaathan Papla Venugopal, Ümit Ağbulut, Thanh Hai Truong, Xuan Phuong Nguyen, Van Ga Bui, Anh Tuan Hoang   +10 more
doaj   +1 more source

In situ mapping of iron oxidation in laminar metal fuel flames using X‐ray absorption spectroscopy

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1418-1427, September 2026.
For the first time an iron metal flame has been mapped by in situ X‐ray absorption spectroscopy. Strong gradients in oxidation state and phase composition across the metallic core and the flame front were found with FeO peaking at the visible flame front and Fe3O4 forming further beyond.Metal fuels such as iron are promising carbon‐free energy carriers
Lukas Braun, Fabian P. Hagen, Michal Fedoryk, Malte Seitz, Björn Stelzner, Dimosthenis Trimis, Jan-Dierk Grunwaldt, Dmitry E. Doronkin   +7 more
wiley   +1 more source

Reaction-diffusion effects on species mixing rates in turbulent premixed methane-air combustion

, 2009
The scalar mixing time scale, a key quantity in many turbulent combustion models, is investigated for reactive scalars in premixed combustion. Direct numerical simulations of threedimensional, turbulent Bunsen flames with reduced methane-air chemistry ...
Grout, R.W., Sankaran, R., Richardson, E.S., Chen, J.H.   +3 more
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