Abstract
A testing apparatus has been developed to help characterize the thermal conductivity of fibrous insulation materials. The goal of this apparatus is to measure the in-plane thermal conductivity of thermal protection systems (TPS) materials along with the through-the-thickness thermal conductivity. Previous experiments have focused on characterizing and modeling the through-the-thickness thermal conductivity of TPS materials. Very few experiments, if any, have characterized and modeled the in-plane thermal conductivity as a function of temperature, pressure, and gaseous composition. The in-plane thermal conductivity of fibrous insulation materials such as PICA or its substrate FiberForm® is estimated to be 2–3 times higher than their respective through-the-thickness thermal conductivities. Due to this difference, the in-plane thermal conductivity plays an important role in determining how incident heat fluxes are spread out along re-entry vehicles. The through-the-thickness and in-plane thermal conductivity of Pyrogel XTE, or Aerogel, was measured. It was found that the through-the-thickness thermal conductivity was 0.060 W/mK and the in-plane thermal conductivity was 0.265 W/mK.
Original language | English |
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Title of host publication | AIAA SciTech Forum and Exposition, 2024 |
DOIs | |
State | Published - 2024 |
Event | AIAA SciTech Forum and Exposition, 2024 - Orlando, United States Duration: Jan 8 2024 → Jan 12 2024 |
Publication series
Name | AIAA SciTech Forum and Exposition, 2024 |
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Conference
Conference | AIAA SciTech Forum and Exposition, 2024 |
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Country/Territory | United States |
City | Orlando |
Period | 1/8/24 → 1/12/24 |
Bibliographical note
Publisher Copyright:© 2024 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
ASJC Scopus subject areas
- Aerospace Engineering