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A System for Inflating a Balloon Using Helium Stored in the Liquid Phase.
Final scientific rept. 15 May 74-31 Aug 75,
NATIONAL BUREAU OF STANDARDS BOULDER COLO CRYOGENICS DIV
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This report covers the design and development of the prototype of a system to be used to fill a balloon that has been launched from an aircraft. The described system uses a hot packed bed heat exchanger to gasify 45.4 kg of liquid helium and warm the gas to 260 K for filling the balloon. The prototype system was successfully demonstrated on the ground by filling an ambient pressure balloon with 300 cum of helium gas at an average temperature of 260 K in six minutes and 45 seconds. Author
APPROVED FOR PUBLIC RELEASE