Results 111 to 120 of about 46,903 (297)

Impact of a Variable Blockage Ratio on the Detonation Transition in a Pre-Detonator

Fire
The deflagration-to-detonation transition (DDT) is a critical process for achieving reliable ignition in detonation-based propulsion systems, such as Rotating Detonation Engines (RDEs).
Yuchang Gil, Suhyeong Lee, Sangkyu Han, Sungwoo Park   +3 more
doaj   +1 more source

Numerical Study of Homogenous/Inhomogeneous Hydrogen–Air Explosion in a Long Closed Channel

Fire
Hydrogen is regarded as a promising energy source for the future due to its clean combustion products, remarkable efficiency and renewability. However, its characteristics of low-ignition energy, a wide flammable range from 4% to 75%, and a rapid flame ...
Jiaqing Zhang, Xianli Zhu, Yi Guo, Yue Teng, Min Liu, Quan Li, Qiao Wang, Changjian Wang   +7 more
doaj   +1 more source

Harnessing the Interfacial Activity of Soluble Faba Protein‐Tannic Acid Conjugates for Enhanced Lipid Oxidative Stability of Oil‐in‐Water Emulsions

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT In oil‐in‐water emulsions, lipid oxidation begins at the interface between the two phases. One strategy to slow down this process is to place antioxidants at the interface, where they can directly block oxidative reactions. This study explored that idea by conjugating soluble faba bean protein with tannic acid using the free‐radical grafting ...
Shahrzad Sharifimehr, Supratim Ghosh
wiley   +1 more source

Flame acceleration studies in the MINIFLAME facility

, 1989
Flame acceleration and deflagration-to-detonation transition (DDT) studies have been conducted in a 19.4-cm high, 14.5-cm wide, and 2. 242-m long channel (MINIFLAME) that is a 1:12.6 scale model of the 136-m{sup 3} FLAME facility. Tests were conducted with two levels of hydrogen concentration -- 20% and 30%, with and without obstacles in the channel ...
S. Tieszen, M. Sherman, W. Benedick
openaire   +2 more sources

Mechanistic Insights Into Photocatalytic Materials for Toxic Pollutants: Environmental Remediation of Personal Care Products

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Photocatalytic materials have emerged as promising solutions for environmental applications due to their ability to degrade organic pollutants under sunlight or artificial light. In this review, recent progress on the photocatalytic materials used for the degradation of pharmaceutical personal care products (PPCPs) in environmental ...
Urvashi Sen, Gunjan Chauhan, Surbhi Soni, Monika Vats, Anand Kumar, Indra Bahadur   +5 more
wiley   +1 more source

Performance Investigation of Eco‐Friendly Refrigerant Mixtures as an Alternative to R134a in Vapour‐Compression Refrigeration System

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The growing impacts of climate change and energy scarcity demand environmentally sustainable refrigeration solutions. This study investigates eco‐friendly refrigerants (R152a, R290 and R600a) and their optimized ternary mixture as alternatives to R134a. Four blend compositions were analysed using experimental testing and REFPROP 10.0 modelling
M. Periyasamy, P. Senthilkumar
wiley   +1 more source

Green Fuel Combustion Synthesis of CeO2 and Ag/CeO2 Nanoparticles for Photocatalytic and Antibacterial Applications

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Silver‐doped cerium oxide nanoparticles (Ag/CeO2 NPs) were synthesized using Ricinus communis seed extract as a bio‐derived fuel in a solution combustion method. The combustion reaction, carried out at 450°C with AgNO3 and (NH4)2[Ce (NO3)6] as metal precursors, produced CeO2 and Ag/CeO2 NPs.
T. N. Ravishankar, J. R. Adarsha, R. Mohan Reddy, S. Harisha, A. Ananda, B. M. Shilpa   +5 more
wiley   +1 more source

Numerical Characterization of Natural Swirling Flame Evolving in Free Environment via FDS: a Comprehensive Investigation of Fires Problems

Journal of Applied Fluid Mechanics, 2020
In this paper, a numerical study of a swirling flame generated through the interaction between a central fire and its surrounding fires is performed. A swirling flame can be configured by installing a secondary’s sources surrounding the central source ...
M. Al. Thamri, T. Naffouti, S. Gannouni, J. Zinoubi   +3 more
doaj  

Influence of Nitrogen Ion Implantation on the Structural, Morphological and Optical Properties of Al‐Doped ZnO [AZO] Thin Films for High‐Performance Optoelectronic Applications

Advanced Physics Research, EarlyView.
This work reports near‐surface nitrogen ion implantation in Al‐doped ZnO thin films deposited by RF magnetron sputtering and examines post‐implantation effects at room temperature. Structural, morphological, optical, and electrical modifications are analyzed.
Richa Sharma, Fouran Singh, Jag Mohan Singh Rana, Tanuj Kumar, Ratnesh K. Pandey, Aniruddha Mondal, Pankaj Chamoli, Rajeev Gupta   +7 more
wiley   +1 more source

Advances in Regulating Strategies and Applications of Ferroelectric Materials

Advanced Physics Research, EarlyView.
To meet the demand for precise control of performance in nanoelectronic devices, this paper systematically reviews the latest advances in controlling ferroelectric properties through strategies such as external field modulation, low‐dimensional confinement, interface engineering, and topological structure design.
Jianying Ji, Cong Liu, Dan Luo, Zhou Li
wiley   +1 more source