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Chapter
Performance Testing of a Lightweight, High Efficiency Cooler
A lightweight, high efficiency cryocooler has been tested. The design operating point of the cooler is 10 W at 95 K with a rejection temperature of 300 K, and the goal is a 10 yr operating lifetime. The cooler...
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Chapter
Cryocoolers for Human and Robotic Missions to Mars
Future missions to Mars will make use of a number of different cryocoolers. These cryocoolers will be used to liquefy and preserve propellants and for transporting liquid hydrogen feed stock. The earliest miss...
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Chapter
Terrestrial Applications of Zero-Boil-Off Cryogen Storage
Storing cryogenic propellants with zero boil off (ZBO) using a combination of active (cryocoolers) and passive technologies has recently received a great deal of attention for longterm space missions. This pap...
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Chapter
Measuring Thermal Conductivity of Insulators at Cryogenic Temperatures
Traditionally, launch vehicles have consisted of a structure containing the vehicle engines, propellant tanks, and electronics. NASA’s next generation of space transportation vehicles is planned to utilize the...