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| Advanced Combustion via Microgravity
Experiments (ACME) |
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ACME Status
August
21, 2009 - The ACME project is conducting drop
tower testing at the Glenn Research Center’s 2.2
second drop tower with the ACME E-Fields rig. The
drop tower tests are focusing on the high voltage field
effects on flames, these tests were conducted during the
month of July 2009 by the project scientist and summer
intern. The ACME project is also preparing for the
October 2009 Requirements Definition Review.
Objective
Modular apparatus designed for gaseous fuel investigations to
study:
- combustion structure and stability near flammability
limits,
- soot inception, surface growth, and oxidation
processes,
- emission reduction through nitrogen exchange,
- combustion stability enhancements via an
electric field.
Relevance/Impact
- Verified computational models that will enable
the design of high efficiency, low emission combustors operating
at near-limit conditions.
- Reduced design costs due to improved capabilities
to numerically simulate combustion processes.
- Efficient soot control strategies for industrial
applications.
Development Approach
- Flight design leverages off previous flight
design heritage.
- Multi-user, re-usable apparatus minimizing up-mass/volume,
costs, and crew involvement.
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Four flame designs to be studied by ACME
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Combustion Integrated Rack (CIR)
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Spherical Flame (s-Flame)
Principal Investigaotor: Prof.
C. K. Law, Princeton University
Co-Investigators: Prof.
Stephen Tse, Rutgers U.
Dr. Kurt Sacksteder, NASA GRC
Flame Design
Principal Investigaotor: Prof.
Richard Axelbaum, Washington University, St. Louis
Co-Investigators: Prof.
Beei-Huan Chao, U. Hawaii
Prof. Peter Sunderland, U. Maryland
Dr. David Urban, NASA GRC
Coflow Laminar Diffusion Flame
(CLD Flame)
Principal Investigaotor: Prof.
Marshall Long, Yale University
Co-Investigators: Prof.
Mitchell Smooke, Yale University
Electric-Field Effects on Laminar
Diffusion Flames (E-FIELD Flames)
Principal Investigaotor: Prof.
Derek Dunn-Rankin, UC Urvine
Co-Investigators:: Prof.
Felix Weinberg, Imperial College, London
Dr. Zeng-Guang Yuan, NCSER/GRC
Project Scientists: Dennis
Stocker, NASA GRC;
Dennis.P.Stocker@nasa.gov
216-433-2166
Dr. Fumiaki Takahashi, NCSER/GRC
216-433-3778
Project Manager: Robert
W. Hawersaat
Robert.W.Hawersaat@nasa.gov
216-433-8157
Engineering Team: ZIN Technologies, Inc.
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