Florida Space Institute Seminar
Announcement
Speaker:
Weiwei Deng
Affiliation:
UCF/MMAE
Day
and Date: Wednesday, November 13, 2013
Time:
11:00 - 12:00
Location: Research Park
12354 Research Parkway
Partnership 1 Bldg. Suite 209
Orlando, FL 32826
Title
Multiplexed Electrospray and
Its Application in Space Propulsion
Electrospray is an emerging technique widely used in
advanced materials processing and recently in space propulsion. Electrospray
can atomize liquids into quasi-monodisperse droplets in a wide size range (from
micrometers to essentially ions). One main drawback of the electrospray is the
low flow rate emitted by each source. I will discuss our research in
multiplexing the number of electrospray sources by 1000 times and potentially
more. The scalability we demonstrated enables large scale applications such as
roll-to-roll fabrication of organic solar cells. I will highlight the
application of multiplexed electrospray in space propulsion. Currently
electrospray is being actively pursued by several groups as an efficient method
for space propulsion due to the superior specific impulse provided by
electrospray operated in the ionic regime. However, a remaining critical
challenge is to ensure sufficient fluid dynamic impedance through each nozzle
that regulates the flow rates. We took a new approach and microfabricted dense
cylinder array inside the fluidic channels to increase the flow impendence.
This method may lead to scalable thrust as well as vectoring capability.
.For further information please click
below:
Contact:
Ashley Kehoe / Josh Colwell
Department of Physics
Phone: 407-823-6306
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