Cryogenic Thermal Insulation Systems

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Aerogel Basics World’s lightest solid Lighter is not always better Special class of open-pore structure nano-materials Extremely low density (as low as several mg/cm 3 ) High porosity (up to 99%) High surface area (over 1000 m 2 /g) Ultrafine pore size (as small as 2-nm radius) Derived from the supercritical drying of highly crosslinked inorganic or organic gels Sol-Gel processing methods Aug 2005 CryoTestLab 28
Flexible aerogel composite blanket, R&D 2003 Award winner, Aspen Aerogels and NASA-KSC Commercial products, Aspen Aerogels, Inc.
Page 1 and 2: Cryogenic Thermal Insulation System
Page 3 and 4: INTRODUCTION
Page 5 and 6: Two things about cryogenics Store
Page 7 and 8: Cryogenics on Earth and in space C
Page 9 and 10: Energy Efficiency on Earth Spacepo
Page 11 and 12: Energy Efficiency for Industry Ind
Page 13 and 14: PART 1 MATERIALS
Page 15 and 16: Basics about Materials Three Basic
Page 17 and 18: New Materials Cabot, aerogel beads
Page 19 and 20: 1. Thermal Conductivity Material t
Page 21 and 22: Representative k-values Material an
Page 23 and 24: Variation of mean heat flux and tot
Page 25 and 26: 3. Density Total installed density
Page 27: Aerogel Materials LIGHTER THAN AIR?
Page 31 and 32: Aerogel Composite Heat Transfer AER
Page 33 and 34: PART 2 TESTING
Page 35 and 36: Comparison of Insulation Test Metho
Page 37 and 38: Cryostat Test Methods Full tempera
Page 39 and 40: Cryostat-1
Page 41 and 42: Cryostat-4
Page 43 and 44: Performance Characterization of Per
Page 45 and 46: Temperatute (K) 350 300 250 200 150
Page 47 and 48: Flow (scm 3 /min) 500 400 300 200 1
Page 49 and 50: Layer temperature profiles as a fun
Page 51 and 52: Main Categories High Vacuum (HV)
Page 53: New Applications Aerogel blankets
Page 56 and 57: There is a hot side and a cold side
Page 58 and 59: Research Testing Conclusion Well o
Page 60 and 61: Selected References Fesmire, J. E.

Cryogenic Thermal Insulation Systems

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