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- TunnelTECH: Making use of metro heat
- TunnelTECH: Reflections on overheating metros
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From the Archive: metro climate control
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Turning metro heat into a useful resource
Turning metro heat into a useful resource
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From the Editor's Desk - 08 Aug 2019
Heat generated in underground infrastructure is a health and safety concern and could be a valuable resource. Research is underway into both issues. How long until prototypes are used on a grand scale?

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