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This Portable Blowtorch Uses Only Water As Fuel

• popsci.com
 

Researchers from ITM Power, a UK-based clean energy company, say their new blowtorch prototype produces fire using only water as fuel. The electrolyser system turns hydrogen and oxygen gases from water into fuel for the torch using electricity.

SafeFlame is designed for use in brazing, a process similar to welding that joins two metal pieces together by melting another metal joint between them, usually from a metal with a lower melting point like copper. Current brazing systems mostly use flammable gasses like acetylene or propane as fuel for portable torches, which pose a fire and explosion risk in highly pressurized containers.

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