A rotating, flat plate condensation experiment has been developed to
investigate the heat of the Rotating Bubble Membrane Radiator (RBMR). The
RBMR is a proposed heat rejection system for space applications which uses
working fluid condensation on the inside surface of a rotating sphere to
reject heat to space. The flat plate condensation heat transfer
experiment simulates the microgravity environment of space by orienting
the axis of rotation parallel to the gravitational vector and normal to
the surface of the plate. The condensing surface is cooled to simulate the
rejection of heat to cold surface. The working fluid is a super heated
steam.
The results obtained include relationships between the overall heat
transfer coefficient as a function of the temperature difference between
the working fluid and a cold environment, both placed in dimensionless
groups, and plate angular rotational speeds. This empirical relationship
is useful for choosing the optimum rotational speed for the flat plate
radiator given a desired heat rejection load.
A RBMR prototype, using full sphere shell, was designed and built
completely in this research efforts and ready to be tested in future
planned experiments in microgravity environment. This RBMR is the first
one ever built to investigate the RBMR concepts experimentally.
This study also provides the basis for designing new heat rejection
systems utilizing centrifugal forces and condensation phenomena in both
space and ground applications. / Graduation date: 1993
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/36233 |
| Date | 30 March 1993 |
| Creators | Al-Baroudi, Homan Mohammed-Zahid |
| Contributors | Klein, Andrew C. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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