A Fabric Composite Radiation Heat Transfer Study has been
conducted to determine the effective emissivities of specific
fabric composite materials. The weave of the fabric and the
high strength capability of the individual fiber in
combination with the thermal conductivity and chemical
stability of specific metallic liner, result in a very
efficient light weight heat rejection system. Primary
investigation included aluminum, copper, stainless steel and
titanium as liner materials, and three different ceramic
fabrics - Astroquartz II (a trademark of JPS Co., Slater, SC),
Nextel (a trademark of 3M Co., St. Paul, MN) and Nicalon (a
trademark of The Nippon Carbon Co., Japan). Experiments
showed that fabric composite materials have significantly
higher effective emissivities than the bare metallic liner
materials. Aluminum and Astroquartz II combination and
aluminum and Nextel combination appeared to be the most
promising among the tested samples. To simulate deep space
the experiment was performed in vacuum where coolant fluid was
cirulated at about -10°C. The effective emissivity
measurements were conducted at 376 K, 521 K and 573 K. Also
high temperature effective emissivity measurements need to be
performed. / Graduation date: 1993
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/36175 |
| Date | 29 March 1993 |
| Creators | Gulshan, Zubaida A. |
| Contributors | Klein, Andrew C. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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