Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field
Name
s41526-021-00167-3.pdf
Description
Published version
Size
2.11 MB
Format
Adobe PDF
Checksum (MD5)
5a20140254784439467730190f5f3ed6
Author(s)
Garivalis, Alekos Ioannis
Manfredini, Giacomo
Saccone, Giacomo
Di Marco, Paolo
Kossolapov, Artyom
Bucci, Matteo
Date Issued
2021
Journal
npj Microgravity
Publisher
Springer Science and Business Media LLC
Citation
Garivalis, Alekos Ioannis, Manfredini, Giacomo, Saccone, Giacomo, Di Marco, Paolo, Kossolapov, Artyom et al. 2021. "Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field." npj Microgravity, 7 (1).
Version
Final published version
Abstract
AbstractWe run pool boiling experiments with a dielectric fluid (FC-72) on Earth and on board an ESA parabolic flight aircraft able to cancel the effects of gravity, testing both highly wetting microstructured surfaces and plain surfaces and applying an external electric field that creates gravity-mimicking body forces. Our results reveal that microstructured surfaces, known to enhance the critical heat flux on Earth, are also useful in microgravity. An enhancement of the microgravity critical heat flux on a plain surface can also be obtained using the electric field. However, the best boiling performance is achieved when these techniques are used together. The effects created by microstructured surfaces and electric fields are synergistic. They enhance the critical heat flux in microgravity conditions up to 257 kW/m2, which is even higher than the value measured on Earth on a plain surface (i.e., 168 kW/m2). These results demonstrate the potential of this synergistic approach toward very compact and efficient two-phase heat transfer systems for microgravity applications.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/S41526-021-00167-3
