Enhanced Evaporative Surface for Two-Phase Mounting Plates 860979
This paper describes an enhancement to a grooved, evaporative surface for two-phase mounting plates. These equipment mounting plates could be used in two-phase thermal control systems such as that on the proposed Space Station.
An aluminum plate is machined with fine, rectangular grooves (39 grooves/cm). This grooved surface is then enhanced by an inexpensive process called Ivadizing™ (equipment for this process is patented by McDonnell Douglas). During Ivadizing, aluminum is vapor deposited onto the surface, forming a slightly porous coating on the land area between the grooves. The resulting surface has a much larger evaporative heat transfer coefficient and capillary pumping ability than that with plain, rectangular grooves.
We have used Ivadizing to enhance a mounting plate evaporative surface. Tests of this plate with R-11 showed improvement in evaporative heat transfer coefficient by a factor of 4. Analytic studies show that this enhanced surface should have at least three times the capillary pumping capacity of the rectangular grooved surface.
Citation: Grote, M., Stark, J., and Tefft, E., "Enhanced Evaporative Surface for Two-Phase Mounting Plates," SAE Technical Paper 860979, 1986, https://doi.org/10.4271/860979. Download Citation
Author(s):
M. G. Grote, J. A. Stark, E. C. Tefft
Affiliated:
McDonnell Douglas Corp., St. Louis, MO
Pages: 10
Event:
Intersociety Conference on Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Aerospace Environmental Systems-Proceedings of the Sixteenth Ices Conference-P-177, SAE 1986 Transactions - Aerospace-V95-6
Related Topics:
Heat transfer
Spacecraft
Control systems
Forming
Aluminum
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
