Results 71 to 80 of about 197,531 (156)

Studies of Premixed Laminar and Turbulent Flames at Microgravity [PDF]

The work of the Principal Investigator (PI) has encompassed four topics related to the experimental and theoretical study of combustion limits in premixed flames at microgravity, as discussed in the following sections. These topics include: (1) radiation
Ronney, Paul D.
core   +1 more source

Enhancing Ignition Reliability with Tail-Groove Strut Designs in Cavity-Based Combustors

Applied Sciences
As the flight envelopes of turbine-based combined cycle (TBCC) engines expand, ensuring reliable ignition and flame stability under varying conditions becomes increasingly critical. Previous work has shown a significantly changed ignition performance and
Haihong Chen, Shilong Zhao
doaj   +1 more source

Properties of atomic intercalated carbon K4 crystals

, 2009
The stability of atomic intercalated carbon $K_{4}$ crystals, XC$_{2}$ (X=H, Li, Be, B, C, N, O, F, Na, Mg, Al, Si, P, S, Cl, K, Ca, Ga, Ge, As, Se, Br, Rb or Sr) is evaluated by geometry optimization and frozen phonon analysis based on first principles ...
Bin Wen, Born, Clark, Dai, Eremets, Friedrichs, Itoh, Liang, Mailhiot, Murrieta, Payne, Perdew, Pickard, Pringle, Seiichi Takami, Sunada, Tadafumi Adschiri, Vanderbilt, Wang, Wen, Yao, Yoshiyuki Kawazoe, Zarko   +22 more
core   +1 more source

Characterization of Combustion in Cylindrical Meso-Scale Combustor with Wire Mesh Flame Holder as Initiation of Energy Source for Future Vehicles

Automotive Experiences
The research aims to analyze and reveal combustion characteristics in a Cylindrical Meso Scale (CMS) Combustor with a wire mesh flame holder as a reference for designing a compact, efficient, and high-density energy source for future vehicles.
Andi Sanata, Nasrul Ilminnafik, Muhammad Maulana Asyhar, Hendry Y. Nanlohy, Franciscus Xaverius Kristianta, Imam Sholahuddin   +5 more
doaj   +1 more source

"Synthesis of Schiff base flame retardant modifier and its application in isoprene rubber"

Hecheng xiangjiao gongye
The Schiff base flame retardant modifier was prepared through the Ullmann reaction and used to modify aluminum hydroxide filler and isoprene rubber. The thermal stability and hydrophobic properties of the flame retardant modifier and modified aluminum ...
YU Hai-wen, XIAO Cheng-yuan, MU Hong-shuai, TAN Lian-ying, WANG Xue-fei, YANG Jun
doaj   +1 more source

On the use of external burning to reduce aerospace vehicle transonic drag [PDF]

The external combustion of hydrogen to reduce the transonic drag of aerospace vehicles is currently being investigated. A preliminary analysis based on a constant pressure control volume is discussed.
Trefny, Charles J.
core   +1 more source

An optical investigation on arc shortening features and its impacts on ignition process with multiple discharging system

Case Studies in Thermal Engineering
Flame kernel generation is essential to the stability and efficiency of combustion in a spark engine. In this study, the initial process of flame kernel generation was studied in an optical spark engine. The engine was operated with the λ adjusted from 1.
Zhiqiang Li, Jing Qin, Yiqiang Pei, Qi Zhan, Yingbo Wang   +4 more
doaj   +1 more source

Effects of percentage of blockage and flameholder downstream counterbores on lean combustion limits of premixed, prevaporized propane-air mixture [PDF]

Lean combustion limits were determined for a premixed prevaporized propane air mixture with flat plate flame stabilizers. Experiments were conducted in a constant area flame tube combustor utilizing flameholders of varying percentages of blockage and ...
Fernandez, M. A. B.
core   +1 more source

Stability study of flame structure using photodiodes in surface flame burners

Scientific Reports
Radiation spectroscopy can be effective in identifying pollutants and species. By examining a photodiode, the frequency peaks obtained from the analysis, and the range in which the cell flame is converted to a surface flame, we obtained the value ratio ...
Parmis Sadat Jazayeri, Mohammad Zabetian Targhi, Mohammad Reza Karafi   +2 more
doaj   +1 more source

Stability of Enclosed Laminar Flames Studied in Microgravity [PDF]

In practical combustion systems, the flame is often anchored at the inlet where the fuel is injected into an air duct. This type of system is found in powerplant combustors, gas turbine combustors, and the jet engine afterburner.
Stocker, Dennis P.
core   +1 more source