Chapter
Apr 26, 2012
Active Dust Mitigation Technology for Thermal Radiators for Lunar Exploration
Authors: C. I. Calle [email protected], C. R. Buhler, M. D. Hogue, M. R. Johansen, V. B. Cruz, J. W. Hopkins, N. M. H. Holloway, … Show All … , J. W. Connell, A. Chen, S. A. Irwin, S. O. Case, N. J. Van Suetendael, S. J. Snyder, and J. S. Clements Show FewerAuthor Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
Dust accumulation on thermal radiator surfaces planned for lunar exploration will significantly reduce their efficiency. Evidence from the Apollo missions shows that an insulating layer of dust accumulated on radiator surfaces could not be removed and caused serious thermal control problems. Temperatures measured at different locations in the magnetometer on Apollo 12 were 38 °C warmer than expected due to lunar dust accumulation. In this paper, we report on the application of the Electrodynamic Dust Shield (EDS) technology being developed in our NASA laboratory and applied to thermal radiator surfaces. The EDS uses electrostatic and dielectrophoretic forces generated by a grid of electrodes running a 2 μA electric current to remove dust particles from surfaces. Working prototypes of EDS systems on solar panels and on thermal radiators have been successfully developed and tested at vacuum with clearing efficiencies above 92%. For this work, EDS prototypes on flexible and rigid thermal radiators were developed and tested at vacuum.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Affiliations
Electrostatics and Surface Physics Laboratory, NASA, Kennedy Space Center, FL 32899. E-mail: [email protected]
C. R. Buhler
ASRC Aerospace, Kennedy Space Center, FL 32899
M. D. Hogue
Electrostatics and Surface Physics Laboratory, NASA, Kennedy Space Center, FL 32899
M. R. Johansen
Electrostatics and Surface Physics Laboratory, NASA, Kennedy Space Center, FL 32899
V. B. Cruz
NASA Langley Research Center, Hampton, VA 23681
J. W. Hopkins
NASA Langley Research Center, Hampton, VA 23681
N. M. H. Holloway
NASA Langley Research Center, Hampton, VA 23681
J. W. Connell
NASA Langley Research Center, Hampton, VA 23681
A. Chen
Department of Physics, Oklahoma Baptist University, Shawnee, OK 74804
S. A. Irwin
Department of Physics and Space Sciences, Florida Institute of Technology, Melbourne, FL 32901
S. O. Case
Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
N. J. Van Suetendael
Electrostatics and Surface Physics Laboratory, NASA, Kennedy Space Center, FL 32899
S. J. Snyder
ASRC Aerospace, Kennedy Space Center, FL 32899
J. S. Clements
Department of Physics and Astronomy, Appalachian State University, Boone, NC 28608
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