Phase-change cooling of subterranean power lines

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United States of America Patent

PATENT NO 9562704
SERIAL NO

14861766

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Abstract

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A cooling system for a subterranean power line may include a cooling tube configured to house a fluid. Heat generated by the subterranean power line may be radiated and/or conducted to the cooling tube and absorbed by the fluid within the cooling tube. As the fluid heats up, it may change phase from a liquid to a gas. The hot gas may rise to a heat-exchanging condenser configured to dissipate the heat and condense the fluid back into a liquid. The cool, condensed liquid my return from the heat-exchanging condenser to the cooling tube. Risers, gas transport tubes, pressure regulation systems, fluid storage tanks, and other components described herein may increase the efficiency of the cooling system and/or otherwise improve the viability of the cooling system for subterranean power lines.

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Patent Owner(s)

Patent OwnerAddress
ELWHA LLC11235 S E 6TH STREET SUITE 200 BELLEVUE WA 98004

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hyde, Roderick A Redmond, US 2911 61857
Kare, Jordin T Seattle, US 1471 26455
Myhrvold, Nathan P Medina, US 1337 34637
Tuckerman, David B Lafayette, US 241 6551
Wood,, Jr Lowell L Bellevue, US 2836 53047

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