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Smoldering, Transition and Flaming in MicrogravityA research project is underway to study smolder and the transition to flaming in microgravity. The Microgravity Smoldering Combustion (MSC) flight project is an ongoing research project to provide a better understanding of the controlling mechanisms of smoldering combustion. The Smoldering Transition and Flaming (STAF) project is a recently established research program that will utilize the Fluids and Combustion Facility (FCF) of the ISS to examine the transition from smolder to flaming in microgravity. In forced flow smolder experiments ambient pressure in the MSC chamber rises, thus motivating the need to understand the effects of pressure on smoldering combustion. Further, the STAF experiment has constraints on experimental scale and testing at elevated pressure may be a mechanism to reduce the sample size by enhancing the smolder reaction. In the work we are reporting here, a series of ground-based tests determine the effects of pressure on smoldering combustion. These tests are compared with data obtained from experiments conducted aboard the Space Shuttle in flights STS-69 and STS-77. Measurements of one-dimensional smolder propagation velocity are made by thermocouple probing and a non-intrusive Ultrasound Imaging System (UIS)]. Thermocouples are also used to obtain reaction temperatures and the UIS is used to determine permeabilities of the fuel in real-time.
Document ID
20010073999
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Fernandez-Pello, A. C. (California Univ. Berkeley, CA United States)
Bar-Ilan, A. (California Univ. Berkeley, CA United States)
Lo, T. L. (California Univ. Berkeley, CA United States)
Walther, D. C. (California Univ. Berkeley, CA United States)
Urban, D. L. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
August 20, 2013
Publication Date
May 1, 2001
Publication Information
Publication: Sixth International Microgravity Combustion Workshop
Subject Category
Inorganic, Organic And Physical Chemistry
Funding Number(s)
CONTRACT_GRANT: NAG3-2026
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20010073993Collected WorksSixth International Microgravity Combustion Workshop
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