An Experimental Study of Temperature and Radiation Characteristics of Transient Spherical Diffusion Flames in Microgravity PDF Download
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Author: Melissa Kay Chernovsky
Publisher:
ISBN:
Category :
Languages : en
Pages : 402
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Author: Melissa Kay Chernovsky
Publisher:
ISBN:
Category :
Languages : en
Pages : 402
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Author: Sean Berhan
Publisher:
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Category :
Languages : en
Pages :
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Author: Robert W. Vance
Publisher:
ISBN:
Category : Flame spread
Languages : en
Pages : 326
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Author: Tariq Shamim
Publisher:
ISBN:
Category :
Languages : en
Pages : 382
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Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 300
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Author:
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ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 862
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723565441
Category :
Languages : en
Pages : 402
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The objective of this effort was to gain a better understanding of the fundamental phenomena involved in laminar gas jet diffusion flames in the absence of buoyancy by studying the transient phenomena of ignition and flame development, (quasi-) steady-state flame characteristics, soot effects, radiation, and, if any, extinction phenomena. This involved measurements of flame size and development, as well as temperature and radiation. Additionally, flame behavior, color, and luminosity were observed and recorded. The tests quantified the effects of Reynolds number, nozzle size, fuel reactivity and type, oxygen concentration, and pressure on flame characteristics. Analytical and numerical modeling efforts were also performed. Methane and propane flames were studied in the 2.2 Second Drop Tower and the 5.18-Second Zero-Gravity Facility of NASA LeRC. In addition, a preliminary series of tests were conducted in the KC-135 research aircraft. Both micro-gravity and normal-gravity flames were studied in this program. The results have provided unique and new information on the behavior and characteristics of gas jet diffusion flames in micro-gravity environments. Bahadori, M. Yousef and Edelman, Raymond B. Unspecified Center NASA-CR-191109, E-7720, NAS 1.26:191109 NAS3-22822; RTOP 694-03-0A...
Author:
Publisher:
ISBN:
Category : Combustion
Languages : en
Pages : 138
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Author: Kristine Renee Mills
Publisher:
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Category :
Languages : en
Pages :
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Assuming that the activation energy is large, we develop an asymptotic theory that treats the flame as a surface, on either side of which the chemical reaction rate is negligibly small. By examining the flame structure, we derive an explicit dependence of the combustion parameters on the flame temperature and reactants' leakage through the flame. A new element of this work is that the Lewis numbers associated with the fuel and oxidant are kept arbitrary, and that additional factors influencing the flame structure are included.
Author: U. Hegde
Publisher:
ISBN:
Category :
Languages : en
Pages :
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