Results 81 to 90 of about 755 (242)

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

Energy Science &Engineering, EarlyView.
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

A Detailed Study of Boost Pressure and Injection Timing on an RCCI Engine Map Fueled with Iso-Octane and N-Heptane Fuels

Journal of Applied Fluid Mechanics, 2019
By using two types of different fuels and changing the ratios of these fuels, Reactivity Controlled Compression Ignition Engine (RCCI) is able to provide a more effective control over combustion phase at different loads and speeds.
H. R. Fajri, A. H. Shamekhi, S. Rezaie, M. J. Jafari, S. A. Jazayeri   +4 more
doaj  

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Architecting nano‐Al/HMX/CuO energetic micro‐units unlocks superior interface and highly efficient combustion

InfoMat, EarlyView.
Improving the dispersion of nano‐aluminum is of great importance in explosives and propellants. The spherical Al/HMX/CuO energetic micro‐units were prepared using microchannel technology, which significantly improved the uniformity and dispersion of nano‐Al. It also enhanced the mass and heat transfer efficiency between the fuel and oxidizer components,
Gazi Hao, Tianxu Xi, Yong Kou, Cheng Zhang, Ronghuan Yang, Jiahao Yu, Qiangqiang Lu, Hongyu Yang, Chong Chen, Lei Xiao, Jun Di, Fengqi Zhao, Wei Jiang   +12 more
wiley   +1 more source

Engineering Phosphorus‐Modified Flame‐Retardant Thermoplastic Polyurethane via Reactive Melt Processing

Journal of Polymer Science, EarlyView.
Phosphorus‐modified TPUs are prepared by one‐step, solvent‐free reactive melt processing using phosphate‐ or phosphonate‐containing diols and PEG or PPG soft segments. Fire behavior and mechanical response depend strongly on both chemistries. Peak heat release rate decreases by up to 54%, but reduced tensile strength and V‐2 dripping behavior reveal a ...
Léa Gratier, Jean‐Marie Raquez, Marianne Cochez, Fouad Laoutid, Henri Vahabi   +4 more
wiley   +1 more source

Evaluation of a novel laser‐system operating at 1940 nm for weed control and determining the influence of biological and operational factors

Pest Management Science, EarlyView.
The control efficacy of a novel laser pulse system operating at 1940 nm was tested. The new system allows effective control of young weeds with 1.5 J. Targeting the plant stem is 53‐fold more energy‐efficient than the meristem. Species morphology and beam diameter significantly influence weed control efficacy. Abstract BACKGROUND This study evaluates a
Ran Nisim Lati, Neria Suliman, Rotem Nahear, Evgeny Smirnov, Avital Bechar, Gilad Marcus, Salman Noach   +6 more
wiley   +1 more source

Combined effects of copper oxide nanoparticles and hydrogen enrichment on the performance and emissions of butanol enriched biodiesel in a diesel engine

Results in Engineering
This study explores a multi-faceted approach to improving the combustion, performance, and emission characteristics of a single-cylinder, four-stroke, direct injection (DI) compression ignition engine through the combined effects of butanol enrichment ...
Vijai C, M. Dinesh Babu, M. Naresh Babu, Kulmani Mehar, Ritesh Pratap Singh, Kamakshi Priya K   +5 more
doaj   +1 more source

From Waste to Value: A Data‐Driven Framework for Sustainable Raw Materials Substitution in the Ceramic Industry

Sustainable Development, EarlyView.
ABSTRACT With increasing geopolitical risks, environmental pressures, and regulatory demands, the sustainable sourcing of raw materials has become a global priority for achieving the United Nations Sustainable Development Goals (SDGs), particularly SDG 9 (Industry, Innovation and Infrastructure), SDG 12 (Responsible Consumption and Production), and SDG
Francesco Parisi, Luciana Randazzo, Davide Settembre Blundo, Isabella Ganci, Silvestro Antonio Ruffolo, Mauro Francesco La Russa   +5 more
wiley   +1 more source

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

Safety Science and Technology, EarlyView.
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, EarlyView.
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