Effective Thermal Resistance Comparison of Aerogel and Multi-Layer Insulation as Radiative Barriers Using the Single-Sided Guarded Hot Plate Method

Irick, Kevin

doi:10.5098/hmt.8.2

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2019

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“…The last set of on-orbit aerogel thermal data collected by AFRL was made on August 25 2013. Aerogel has since been evaluated inhouse as a radiative barrier using a guarded hot plate method (Irick, 2017) which shows performance comparable to a range of 5-layer to 10-layer MLI blankets. The ground testing results, along with the durability, low cost of handling and integration, and low density of aerogel, make aerogel a competitive alternative to traditional MLI as an aerospace thermal insulator.…”

Section: Fig 3 MLI Schematicmentioning

confidence: 99%

Long-Term on-Orbit Thermal Performance of Aerogel Insulation

Irick¹,

Smith²,

Williams³

et al. 2019

Frontiers in Heat and Mass Transfer

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This paper provides an analysis of the thermal performance of aerogel insulation used during a long-term International Space Station (ISS) flight experiment aboard Space Test Program -Houston 3 (STP-H3). The Variable emissivity device Aerogel insulation blanket, Dual zone thermal control Experiment suite for Responsive space (VADER) investigation tested a variable emissivity radiator and a new form of multi-layer insulation that used aerogel as the thermal isolator. An effort was made to evaluate the performance of the aerogel insulation over the active flight period. The available flight temperature data shows no evidence of deterioration or change in the aerogel insulation's thermal performance during the two-year on-orbit period.

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Section: Fig 3 MLI Schematicmentioning

confidence: 99%