Results 131 to 140 of about 151,234 (307)

Numerical methods and calculations for droplet flow, heating and ignition [PDF]

, 1982
A numerical method was devised and employed to solve a variety of problems related to liquid droplet combustion. The basic transport equations of mass, momentum and energy were formulated in terms of generalized nonorthogonal coordinates, which allows ...
Dandy, D., Dwyer, H. A., Sanders, B. R.
core   +1 more source

IGNITION ACTIVATION ENERGY OF MATERIALS BASED

Transactions of the VŠB: Technical University of Ostrava, Safety Engineering Series, 2016
This contribution is aimed to compare the values of the ignition activation energies of two types of polyamide – Slovamid 6 FRB and Slovamid GF 50 LTS. Samples were isothermally stressed at five different temperatures between 500 °C a 550 °C, while the time to initiation of the flame combustion was monitored.
Peter RANTUCH, Igor WACHTER, Ivan HRUŠOVSKÝ, Karol BALOG   +3 more
openaire   +1 more source

Application of Critical Energy Density Concept for Minimum Ignition Energy Determination

Journal of Electrostatics
This study presents a new concept, referred to as Critical Energy Density (CED), for estimating the Minimum Ignition Energy (MIE) of organic powders. Only readily experimental data, such as granulometric analysis, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC), are required for running the mathematical model.
Copelli S., Barozzi M., Ballinari D., Lugaresi O., Moneta R.   +4 more
openaire   +1 more source

Interfacial Ru–O–W Orbital Coupling Enables Lattice Oxygen Stabilization for Enhanced Acidic OER

Carbon Energy, EarlyView.
A RuO2/WO3 electrocatalyst with strong interfacial Ru–O–W bonds exhibits optimized Ru–O interactions, enhancing intrinsic activity and stability for acidic OER. The WO3 support modulates the electronic structure of RuO2 and promotes oxo‐intermediate deprotonation, delivering a low overpotential of 203 mV at 10 mA cm−2 and sustained operation beyond 200 
Tongzhou Wang, Shoujian Duan, Junyu Pan, Jihong Li, Li Shao, Lei Shi, Yuhan Sun, Jingming Ran, Huaiyu Shao, Yida Deng   +9 more
wiley   +1 more source

Ignition on the National Ignition Facility: a path towards inertial fusion energy

Nuclear Fusion, 2009
The National Ignition Facility (NIF), the world's largest and most powerful laser system for inertial confinement fusion (ICF) and experiments studying high-energy-density (HED) science, is nearing completion at Lawrence Livermore National Laboratory (LLNL).
openaire   +2 more sources

Multifunctional Design of Solid Polymer Electrolytes: Paving the Way for High‐Performance All‐Solid‐State Batteries

Carbon Energy, EarlyView.
This review provides a comprehensive and systematic overview of the multifunctional design strategies for solid polymer electrolytes (SPEs), a pivotal component for enabling high‐performance all‐solid‐state batteries (ASSBs). It begins with a detailed classification of SPE systems and elaborates on their respective molecular design principles. The work
Bin Man, Yuzhen Zhao, Bo Fu, Yulong Zeng, Yinwen Chen, Qingrui Liu, Wenjing Luo, Xin Li, Xuewei Li, Zikang Zhang, Yun Zheng, Sijie Liu   +11 more
wiley   +1 more source

Functionalized Organic Lithium Salt Enables Flexible Solid‐State Electrolytes With Dual‐Ion Channels for Safe Li Metal Batteries

Carbon Energy, EarlyView.
Here, we design a flexible and non‐flammable solid‐state electrolyte with hierarchical dual‐ion conductive channels. The engineered electrolyte combines continuous organic conductive‐phase pathways for fast bulk Li+ transport and dynamic polymer networks for interfacial ion hopping, achieving unprecedented room temperature conductivity (> 1 mS cm−1 ...
Yijing Liu, Zifan Bu, Han Fang, Xiao Xu, Jinrui Hu, Lixia Bao, Weibo Kong, Jiliang Wang   +7 more
wiley   +1 more source

Ultra‐High‐Efficiency On‐Chip CO2 Conversion by Nanosecond Self‐Pulsing Micro‐Plasma Devices

Carbon Energy, EarlyView.
A micro‐plasma chip with sub‐10‐μm electrode gaps is introduced for efficient CO2‐to‐CO conversion. The device self‐converts a DC power supply into nanosecond pulses, producing field‐emission electrons that vibrationally excite CO2, driving dissociation via the ladder‐climbing mechanism. A scaled‐up chip array achieves 30% single‐pass conversion and 50%
Guangyu Sun, Bartu Karakurt, Hongkeng Zhu, Onder Soydal, Jeremy S. Luterbacher, Elison Matioli   +5 more
wiley   +1 more source

Preparing an Exsolvable Ru‐Substituted LaFeO3 Perovskite With High Surface Area From a Self‐Sacrificial Polymer Template: A Versatile Strategy for Enhanced Catalytic Performance

Chemistry – A European Journal, EarlyView.
High‐surface‐area LaFe0.9Ru0.1O3 is prepared by infiltration of porous Amberlite XAD16 polymer beads. Ru exsolution of this perovskite material leads to a supported catalyst with small Ru particles, exhibiting promising catalytic performance propane combustion.
Jaime Gallego, Yu Wang, Alexander Santamaría, Herbert Over, Bernd M. Smarsly   +4 more
wiley   +1 more source

A spark energy deposition model in mixture fraction space for simulations of turbulent non-premixed flame ignition

Applications in Energy and Combustion Science
Predicting the ignition probability remains important for designing reliable combustors. A spark ignition model in mixture fraction space is proposed and used in a Large Eddy Simulation (LES)-Conditional Moment Closure (CMC) simulation of initiation of a
Hazem S.A.M. Awad, Savvas Gkantonas, Epaminondas Mastorakos   +2 more
doaj   +1 more source