"Flexible aerogel as a superior thermal insulation for high temperature superconductor cable applications"

Conference · Fri Jan 01 04:00:00 EST 2010

OSTI ID:1018573

White, Shannon O. ^[1]; Demko, Jonathan A ^[2]; Tomich, A. ^[1]

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1. Aspen Aerogel, Inc.
2. ORNL

High temperature superconducting (HTS) cables are an advanced technology that can both strengthen and improve the national electrical distribution infrastructure. HTS cables require sufficient cooling to overcome inherent low temperature heat loading. Heat loads are minimized by the use of cryogenic envelopes or cryostats. Cryostats require improvement in efficiency, reliability, and cost reduction to meet the demanding needs of HTS conductors (1G and 2G wires). Aspen Aerogels has developed a compression resistant aerogel thermal insulation package to replace compression sensitive multi-layer insulation (MLI), the incumbent thermal insulation, in flexible cryostats for HTS cables. Oak Ridge National Laboratory tested a prototype aerogel package in a lab-scale pipe apparatus to measure the rate of heat invasion. The lab-scale pipe test results of the aerogel solution will be presented and directly compared to MLI. A compatibility assessment of the aerogel material with HTS system components will also be presented. The aerogel thermal insulation solution presented will meet the demanding needs of HTS cables.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: ORNL work for others
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1018573
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CABLES
COMPATIBILITY
COMPRESSION
CRYOGENICS
CRYOSTATS
DISTRIBUTION
EFFICIENCY
ORNL
RELIABILITY
SUPERCONDUCTORS
THERMAL INSULATION