Potential Cooling Methods for an ELF Squid.
NAVAL RESEARCH LAB WASHINGTON D C
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Current communication systems fall short of operational requirements and in addition impose undesirable restraints on submarines operating flexibility. A new approach to the problem employs a superconducting magnetic field detector known as a Superconducting Quantum Interference Device SQUID. However, present generation SQUIDs can operate only at temperatures in the vicinity of 4.2 K. The most adverse potential configuration of the SQUID container is to have it towed from a submerged submarine. The possible cooling techniques for this system are storage dewars that will last for the duration of the cruise, liquid helium transfer from the submarine, and active mechanical refrigeration on the SQUID buoy. This report outlines the various refrigeration cycles, storage and transfer schemes, and finely a critique of the various systems accompanying a list establishing the most feasible methods for the task at hand.
- Air Conditioning, Heating, Lighting and Ventilating
- Radio Communications