Results 1 to 10 of about 279,557 (311)

Burning of solids in oxygen-rich environments in normal and reduced gravity [PDF]

open access: yes
An experimental program was conducted to investigate the combustion characteristics of solids burning in a weightless environment. The combustion characteristics of thin cellulose acetate material were obtained from specimens burned in supercritical as ...
Andracchio, C. R., Cochran, T. H.
core   +1 more source

Transient combustion responses of homogeneous propellants to acoustic oscillations in axisymmetric rocket motors [PDF]

open access: yes, 1997
A numerical analysis of unsteady motions in solid rocket motors has been conducted. The formulation considers a 2-D axisymmetric combustion chamber and a choke nozzle, and treats the complete conservation equations accounting for turbulence closure ...
Culick, F. E. C., Roh, T. S.
core   +1 more source

Experimental investigation of fundamental flame characteristics, N2O and NF3 decomposition, and NOX formation in hydrogen/methane diffusion flames

open access: yesCase Studies in Thermal Engineering
In this study, the thermal decomposition characteristics of high-global-warming-potential (GWP) greenhouse gases (N2O and NF3) and the associated NOX emission behaviors were experimentally investigated under methane/hydrogen diffusion flame conditions ...
Sumin Song   +4 more
doaj   +1 more source

Diffusion flame extinction in slow convenctive flow under microgravity environment [PDF]

open access: yes
A theoretical analysis is presented to study the extinction characteristics of a diffusion flame near the leading edge of a thin fuel plate in slow, forced convective flows in a microgravity environment.
Chen, C. H.
core   +1 more source

Optimizing wavelet neural networks using modified cuckoo search for multi-step ahead chaotic time series prediction [PDF]

open access: yes, 2019
Determining the optimal number of hidden nodes and their proper initial locations are essentially crucial before the wavelet neural networks (WNNs) start their learning process.
Huda A. Majid   +6 more
core   +1 more source

Development, qualification, and delivery of a hydrogen burnoff igniter [PDF]

open access: yes
The hydrogen burnoff igniter, a pyrotechnic device used to burn off excess hydrogen gas near the Space Shuttle Main Engine (SSME) nozzle, was designed, fabricated, and qualified.
Ray, D.
core   +1 more source

Pengaruh Penambahan LPG (Liquified Petroleum Gas) Pada Proses Pembakaran Premixed Uap Minyak Jarak Pagar (Jatropha Curcas L.) Terhadap Warna Dan Temperatur Api [PDF]

open access: yes, 2016
This study was conducted to determine the effect of the addition of Liquefied Petroleum Gas (LPG) to the premixed combustion characteristics of Jatropha oil vapor. Combustion characteristics studied were the color of fire and flame temperature.
Riwu, D. B. (Defmit)
core   +1 more source

Contributions of Microgravity Test Results to the Design of Spacecraft Fire Safety Systems [PDF]

open access: yes
Experiments conducted in spacecraft and drop towers show that thin-sheet materials have reduced flammability ranges and flame-spread rates under quiescent low-gravity environments (microgravity) as compared to normal gravity.
Friedman, Robert, Urban, David L.
core   +1 more source

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