Results 51 to 60 of about 9,329 (266)

Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine

Engineering Applications of Computational Fluid Mechanics, 2021
To improve the poor in-cylinder combustion condition of the small spark ignition Wankel rotary engine (SI-WRE) and improve its efficiency, this paper conducted a comprehensive optimization of its ignition environment.
Huichao Jiao, Jinxiang Liu, Run Zou, Nana Wang   +3 more
doaj   +1 more source

Waste‐Free Closed‐Loop‐Recyclable and Thermally Superinsulating Polyimide Aerogels Utilizing Diels‐Alder Chemistry

Advanced Materials, EarlyView.
A synthetic protocol for thermally recyclable poly(amide‐imide) aerogels based on Diels–Alder chemistry is presented. Prepared from furan‐modified poly(amide‐imide) and bismaleimide, these aerogels offer thermal superinsulation and excellent thermo‐mechanical performance.
Yufei Xiong, Chang‐Lin Wang, Jadwiga Poniatowska, Kitty Nijmeijer, Nicholas Leventis, Željko Tomović   +5 more
wiley   +1 more source

Unveiling the Electrolyte and Solid Electrolyte Interphase in Sodium Ion Batteries: Mechanisms, Progress, and Perspectives

Advanced Materials, EarlyView.
This review summarizes the recent advances in sodium‐ion battery electrolytes (including organic, aqueous, gel, ionic liquid, and solid‐state types) and their influence on the solid electrolyte interphase (SEI). It discusses SEI formation, aging, and optimization, as well as cases where no SEI forms, providing insights into the critical relationship ...
Meng Li, Chengzhi Sun, Ruoqi Zhang, Man Qi, Zeen Wu, Xin Zhang, Yu Zhang, Jiayin Yuan, Naiqing Zhang   +8 more
wiley   +1 more source

Optical multi-spark ammonia combustion engine: numerical analysis and validation

Frontiers in Mechanical Engineering
Ammonia (NH3) stands out as a promising candidate for fueling internal combustion engines, owing to its high hydrogen content and well-established production and transport infrastructure. Nevertheless, its inherently low flame speed and reactivity pose a
Rafael Menaca, Mickael Silva, Kalim Uddeen, Fahad Almatrafi, Qinglong Tang, James W. G. Turner, Hong G. Im   +6 more
doaj   +1 more source

Performance, emission and combustion characteristics of a branched higher mass, C3 alcohol (isopropanol) blends fuelled medium duty MPFI SI engine

Engineering Science and Technology, an International Journal, 2017
With growing concerns about environmental pollution caused by automobiles, biofuels containing oxygen – also known as oxygenates – are being researched very rigorously. In this article, we have inspected the use of isopropanol/gasoline blends, as fuel in
Harish Sivasubramanian, Yashwanth Kutti Pochareddy, Gopinath Dhamodaran, Ganapathy Sundaram Esakkimuthu   +3 more
doaj   +1 more source

Manganese‐Based Spinel Cathodes: A Promising Frontier for Solid‐State Lithium‐Ion Batteries

Advanced Materials, EarlyView.
Mn‐based spinel cathodes LiMn2O4 (LMO) and LiNi0.5Mn1.5O4 (LNMO), with the unique characteristics of low cost, structural stability, and 3D Li‐ion diffusion channels, have presented great potential in all‐solid‐state batteries. Here, a comprehensive understanding and valuable insights into the rational design and implications for the future development
Yu Dou, Shiyuan Zhou, Jeremy I. G. Dawkins, Karim Zaghib, Khalil Amine, Gui‐Liang Xu, Sixu Deng   +6 more
wiley   +1 more source

A Novel Co3Se4‐CNFs Hybrid System as a Versatile Enhancer for Pd NPs Toward Ethylene Glycol Electrooxidation

Advanced Materials Interfaces, EarlyView.
Pd nanoparticles anchored on a Co3Se4‐CNF hybrid support exhibit enhanced electrocatalytic performance for ethylene glycol oxidation in alkaline media. The synergistic interaction between Co3Se4 and CNFs improves electronic conductivity, promotes uniform Pd dispersion, and reduces charge transfer resistance, resulting in superior activity, durability ...
Thabo Matthews, Tarekegn Heliso Dolla, Rhiyaad Mohamed, Tunde Lewis Yusuf, Paulina Chabalala, Ernest C. Agwamba, Bryan Patrick Doyle, Emanuela Carleschi, Lesego Malepe, Nobanathi Wendy Maxakato   +9 more
wiley   +1 more source

Investigation of Exothermic Behaviors of Energetic Particles in Microfluidics Channels

Advanced Materials Technologies, EarlyView.
Scheme and representative frames of delivery, ignition, and combustion process of core@shell Al@CuO energetic material in a microchannel. The electrical discharge occurred at the throat of microchannel leads to the combustion of the energetic reaction, causing the formation of high‐momentum butterfly‐shaped jet at the throat.
Alex Baranovsky, Anqi Wang, Arsh Saleem, John Z. Wen, Carolyn L. Ren   +4 more
wiley   +1 more source

Comparative Analysis of the Effect Dual Spark Ignition and Single Spark Ignition on Performance and Exhaust Emissions in Bioethanol-Fueled Engines

Journal of Mechanical Engineering Science and Technology
Bioethanol is an alternative fuel that has a high octane value of around 100 to 110, making it difficult to be applied to spark ignition engines directly.
Avita Ayu Permanasari, Ahmad Faizal Wahidin, Hasan Ismail, Erwin Komara, Poppy Puspitasari, Gina A. Lorenzo   +5 more
doaj   +1 more source

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

Advanced Materials Technologies, EarlyView.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk, Senentxu Lanceros‐Mendez, Abílio Pereira Silva   +2 more
wiley   +1 more source