NDLI: Effects of orientation with respect to gravity for a wire-plate convergent angle electrohydrodynamic gas pump

Content Provider	IEEE Xplore Digital Library
Author	Lipchitz, A. Harvel, G.
Copyright Year	2011
Description	Author affiliation: Univ. of Ontario Inst. of Technol., Oshawa, ON, Canada (Lipchitz, A.; Harvel, G.)
Abstract	Electrohydrodynamic (EHD) phenomena have been shown to enhance heat transfer in a variety of heat transport designs including capillary pumped loops for extraterrestrial nuclear applications. Previously, EHD enhancement has been shown to improve the heat transport of experimental CPLs. Further enhancement with the addition of EHD gas pumps to the vapour phase requires EHD gas pump phenomena and performance to be characterized with respect to gravity to determine the expected enhancement from this arrangement in zero and microgravity environments. In this paper an EHD gas pump is oriented with gravity (inverted), 90° to gravity (horizontal) and against gravity (vertical) to determine the effect gravitational and buoyancy forces have on the flow and heat transport of EHD gas pumps. The flow and temperature profiles of the pump at the outlet are presented to demonstrate the orientation effect gravity and buoyancy imposes on EHD gas pumps. The EHD number is calculated and presented. The paper determines that there is a noticeable orientation effect at lower applied voltages due to the heating effects causing recirculation in the flow being reduced with the aid of buoyancy forces. However, the effect is less noticeable at higher applied voltages due to the stronger EHD forces.
Sponsorship	DEI
Starting Page	567
Ending Page	570
File Size	795191
Page Count	4
File Format	PDF
ISBN	9781457709852
ISSN	00849162
e-ISBN	9781457709869
DOI	10.1109/CEIDP.2011.6232720
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-16
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Corona Temperature measurement Electrodes Space heating Pumps Gravity
Content Type	Text
Resource Type	Article

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