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Author: jiann yang

Displaying records 121 to 127.
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121. Dynamics of the Release of Alternate Halon Replacement Agents From Pressurized Bottles
Published: 5/11/1993
Authors: William M Pitts, Jiann C Yang, B D Breuel, W G Cleveland, G. Gmurczyk
Abstract: Halon 1301 has been widely employed on military and commercial aircraft for fire fighting purposes. Unfortunately, due to the deleterious effects of chlorine and bromine on stratospheric ozone, the manufacture of halon 1301 will be phased out by the ...

122. Solubilities of Nitrogen and Freon-23 in Alternative Halon Replacement Agents
Published: 5/11/1993
Authors: Jiann C Yang, B D Breuel, William L. Grosshandler
Abstract: As part of the USAF-sponsored halon replacement project, solubility measurements of nitrogen and Freon-23 in eleven potential halon replacement agents and evaluations of the thermodynamic properties of the agents are currently being conducted at NIST ...

123. Heterogeneous Combustion
Published: 1/1/1993
Author: Jiann C Yang
Abstract: The term "heterogeneous" in this chapter is used loosely to refer to systems in which there are two phases. Under this classification, the subject of heterogeneous combustion is so broad that it is impossible to cover every aspect of it in this chapt ...

124. Detailed Chemical-Kinetic Modeling of Thermal-Agent Diluted Methane and Propane Flames Near Extinguishment
Published: Date unknown
Authors: William M Pitts, Jiann C Yang, Rodney A Bryant, L G. Blevins, Marcia L Huber
Abstract: The use of halons for fire fighting is being phased out due to their deleterious effects on stratospheric ozone. This paper describes the findings of part of a study designed to characterize and identify super-effective thermal fire-fighting agents ...

125. Detection of Smoke From Microgravity Fires
Published: Date unknown
Authors: D L Urban, DeVon Griffin, Gary Ruff, Thomas George Cleary, Jiann C Yang, George William Mulholland, Zeng-guang Yuan
Abstract: The history and current status of spacecraft smoke detection is discussed including a review of the state of understanding of the effect of gravity on the resultant smoke particle size. The results from a spacecraft experiment (Comparative Soot Diagn ...

126. Ignition of Mulch by Firebrands in Wildland/Urban Interface (WUI) Fires
Published: Date unknown
Authors: Samuel L Manzello, John R Shields, Thomas George Cleary, Jiann C Yang
Abstract: Firebrands or embers are produced as trees and structures burn in wildland/urban interface (WUI) fires. Hot firebrands ultimately come to rest and may ignite fuels far removed from the fire, resulting in fire spread. It is believed that firebrand s ...

127. Microgravity Superagglomerates Produced by Silane and Acetylene
Published: Date unknown
Authors: Matthew F Bundy, George William Mulholland, Samuel L Manzello, Jiann C Yang, J HJ Scott
Abstract: A study of acetylene and silane diffusion flames was performed in normal gravity (1-g) and microgravity ([mu]-g) to determine the evolution of soot and silica agglomerates. The objective of this study was to understand the process of gas phase agglo ...

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