GLACIER (refrigerator)

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GLACIER (General Laboratory Active Cryogenic ISS Experiment Refrigerator) was designed and developed by University of Alabama at Birmingham (UAB) Center for Biophysical Sciences and Engineering (CBSE) for NASA Cold Stowage. Glacier was originally designed for use on board the Space Shuttle, but is now used for storing scientific samples on ISS in the EXpedite the PRocessing of Experiments to Space Station (EXPRESS) rack, and transporting samples to/from orbit via the SpaceX Dragon or Cygnus spacecraft. GLACIER is a double middeck locker equivalent payload designed to provide thermal control between +4 °C and -160 °C. [1]

Contents

Development

In 2002 NASA began development of several spaceflight cold stowage systems to work in conjunction with the large (ISS Rack sized) ESA MELFI and Cryosystem freezers. One of these was for a system capable of rapidly freezing bagged irregularly shaped science samples to below -160ºC in as fast as 1ºC/min for a 100ml sample, being able to maintain a complement of frozen samples without electrical power for several hours, and to be of a compact double middeck locker format, to enable transfer between the ISS and the Space Shuttle Orbiter cabin for transport to/from orbit. The combination of these goals presented several significant technical challenges, and prompted NASA to implement a two-phase development approach. In the first phase, two competing designs were matured through Preliminary Design Review (PDR) and completed functional demonstration of key freezer components. In the second phase one of the designs was then developed through to the completed flight freezers. NASA awarded a contract to UAB CBSE to build the GLACIER freezer system in 2005. [2] The first GLACIER freezers flew on STS-126 in 2008. [3]

Description

Additional Cold Storage

GLACIER is one of multiple units available for storage on the ISS and/or transportation to and from the ISS.

See also

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References

  1. ↑ "Fact Sheet". NASA. Archived from the original on 25 November 2010. Retrieved 14 January 2015.
  2. ↑ "News Archive | UAB".
  3. ↑ NASA.gov
  4. ↑ "Hacker News comment from engineer who worked on GLACIER". news.ycombinator.com. Retrieved 2018-05-19.
  5. ↑ "GLACIER". UAB CBSE. Archived from the original on 4 January 2015. Retrieved 14 January 2015.
  6. ↑ NASA.gov
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