NDLI: Effect of particle size distribution on the performance of electrodynamic screens

Content Provider	IEEE Xplore Digital Library
Author	Johnson, C.E. Srirama, P.K. Sharma, R. Pruessner, K. Zhang, J. Mazumder, M.K.
Copyright Year	2005
Description	Author affiliation: Dept. of Appl. Sci., Arkansas Univ., Little Rock, AR, USA (Johnson, C.E.; Srirama, P.K.; Sharma, R.; Pruessner, K.; Zhang, J.; Mazumder, M.K.)
Abstract	Electrodynamic screens (EDS) consist of rows of parallel electrodes deposited on a dielectric substrate covered by a thin insulating coating. The EDS electrodes are connected to a single or multi-phase AC high voltage source to generate an alternating electric field between the electrodes. Such screens have been shown to remove accumulated dust when an alternating voltage is applied. The effect of dust particle size distribution (PSD) on the dust removal efficiency (DRE) of the EDS was analyzed for its application to lunar and Mars missions. Samples of JSC Mars-1 dust simulant were classified into two different particle size distributions. The PSD difference was measured using an electronic single particle relaxation time (ESPART) analyzer. The classified powder was then used to test the performance of electrodynamic screens with two different electrode geometries. The DRE for powder with a count median diameter (CMD) of 5.8 /spl mu/m was 77.3%, where as for a CMD of 5.2 /spl mu/m the DRE was 47.1%.
Starting Page	341
Ending Page	345
File Size	210613
Page Count	5
File Format	PDF
ISBN	0780392086
ISSN	01972618
DOI	10.1109/IAS.2005.1518330
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-02
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Electrodynamics Dielectrics and electrical insulation Powders Dielectric substrates Moon Voltage Coatings AC generators Electric fields
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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