Composite aerogel insulation for cryogenic liquid storage

Kim Kyeongho, Kang Hyungmook, Shin Soojin, Oh In Hwan, Son Changhee, Cho Yun Hyung, Yong Chan Kim, Karng Sarng Woo

Research output: Contribution to journalConference article

Abstract

High porosity materials such as aerogel known as a good insulator in a vacuum range (10-3 ∼ 1 Torr) was widely used to storage and to transport cryogenic fluids. It is necessary to be investigated the performance of aerogel insulations for cryogenic liquid storage in soft vacuum range to atmospheric pressure. A one-dimensional insulating experimental apparatus was designed and fabricated to consist of a cold mass tank, a heat absorber and an annular vacuum space with 5-layer (each 10 mm thickness) of the aerogel insulation materials. Aerogel blanket for cryogenic (used maximum temperature is 400K), aerogel blanket for normal temperature (used maximum temperature is 923K), and combination of the two kinds of aerogel blankets were 5-layer laminated between the cryogenic liquid wall and the ambient wall in vacuum space. Also, 1-D effective thermal conductivities of the insulation materials were evaluated by measuring boil-off rate from liquid nitrogen and liquid argon. In this study, the effective thermal conductivities and the temperature-thickness profiles of the two kinds of insulators and the layered combination of the two different aerogel blankets were presented.

Original languageEnglish
Article number012093
JournalIOP Conference Series: Materials Science and Engineering
Volume171
Issue number1
DOIs
Publication statusPublished - 2017 Mar 1
Event26th International Cryogenic Engineering Conference, ICEC 2016 and International Cryogenic Materials Conference 2016, ICMC 2016 - New Delhi, India
Duration: 2016 Mar 72016 Mar 11

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ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Kyeongho, K., Hyungmook, K., Soojin, S., In Hwan, O., Changhee, S., Yun Hyung, C., Kim, Y. C., & Sarng Woo, K. (2017). Composite aerogel insulation for cryogenic liquid storage. IOP Conference Series: Materials Science and Engineering, 171(1), [012093]. https://doi.org/10.1088/1757-899X/171/1/012093