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Resuspension of Particles by Aerodynamic DeagglomerationA deagglomerator system was developed, characterized by laboratory tests and flown under low gravity (low-g) microgravity conditions. Requirements for a dry powder deagglomeration system were generated by university and National Aeronautics and Space Administration (NASA) scientists from diverse fields of interest including exobiology, planetary sciences, and atmospheric sciences. Existing deagglomeration methods and devices are reviewed. An aerosol generation method suitable for dry powders over a large range of particles sizes and types at high concentrations with consistent deagglomeration efficiency was evaluated. Development of a pulsed-flow laboratory device and experimental approaches to meet the requirements without being g- dependent are described. Results of laboratory one-g quantitative characterization on one type of dry powder particle generator is discussed. Data from NASA low-g tests are summarized.
Document ID
20040053294
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Fonda, Mark
(NASA Ames Research Center Moffett Field, CA, United States)
Petach, Mike
(TRW Space and Electronics Group Redondo Beach, CA, United States)
Rogers, C. Fred
(Desert Research Inst. Reno, NV, United States)
Huntington, Judith
(Search for Extraterrestrial Intelligence Inst. Mountain View, CA, United States)
Stratton, David
(Search for Extraterrestrial Intelligence Inst. Mountain View, CA, United States)
Nishioka, Kenji
(Search for Extraterrestrial Intelligence Inst. Mountain View, CA, United States)
Tipo, Mark
(Hernandez Engineering, Inc. Moffett Field, CA, United States)
Date Acquired
September 7, 2013
Publication Date
July 28, 1998
Subject Category
Space Processing
Funding Number(s)
PROJECT: RTOP 185-52-72-03
Distribution Limits
Public
Copyright
Other
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