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  2. Hydrogen safety - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_safety

    The Hindenburg disaster is an example of a large hydrogen explosion. Hydrogen safety covers the safe production, handling and use of hydrogen, particularly hydrogen gas fuel and liquid hydrogen. Hydrogen possesses the NFPA 704's highest rating of four on the flammability scale because it is flammable when mixed even in small amounts with ...

  3. Underwater explosion - Wikipedia

    en.wikipedia.org/wiki/Underwater_explosion

    An underwater explosion (also known as an UNDEX) is a chemical or nuclear explosion that occurs under the surface of a body of water. While useful in anti-ship and submarine warfare, underwater bombs are not as effective against coastal facilities.

  4. TNT equivalent - Wikipedia

    en.wikipedia.org/wiki/TNT_equivalent

    TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.The ton of TNT is a unit of energy defined by convention to be 4.184 gigajoules (1 gigacalorie), [1] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT.

  5. Water splitting - Wikipedia

    en.wikipedia.org/wiki/Water_splitting

    Electrolysis of water is the decomposition of water (H 2 O) into oxygen (O 2) and hydrogen (H 2): [2] Water electrolysis ship Hydrogen Challenger. Production of hydrogen from water is energy intensive. Usually, the electricity consumed is more valuable than the hydrogen produced, so this method has not been widely used.

  6. Fukushima nuclear accident (Unit 3 Reactor) - Wikipedia

    en.wikipedia.org/wiki/Fukushima_nuclear_accident...

    The video appears to show large amounts of debris contaminating the pool. Based on water samples analysed, unnamed experts and TEPCO reported that the fuel rods were left "largely undamaged", [51] [52] and that it appears that the Unit 3 explosion was entirely related to hydrogen buildup within the building from venting of the reactor.

  7. Fukushima nuclear accident (Unit 2 Reactor) - Wikipedia

    en.wikipedia.org/wiki/Fukushima_nuclear_accident...

    The utility said that the hydrogen explosion at Unit 3 might have caused a glitch in the cooling system of Unit 2: Four out of five water pumps being used to cool the Unit 2 reactor had failed after the explosion at Unit 3. In addition, the last pump had briefly stopped working when its fuel ran out.

  8. Passive autocatalytic recombiner - Wikipedia

    en.wikipedia.org/wiki/Passive_autocatalytic_re...

    The reaction generates steam. The reaction starts spontaneously when the hydrogen concentration reaches 1–2 percent. Burning of hydrogen in air requires at least 4 percent hydrogen concentration, and even higher for an explosion. Therefore, a recombiner is able to remove hydrogen from the containment before a flammable concentration is ...

  9. Boiling liquid expanding vapor explosion - Wikipedia

    en.wikipedia.org/wiki/Boiling_liquid_expanding...

    A BLEVE–fireball at the Philadelphia Energy Solutions refinery, as rendered by the CSB. A boiling liquid expanding vapor explosion (BLEVE, / ˈ b l ɛ v iː / BLEV-ee) is an explosion caused by the rupture of a vessel containing a pressurized liquid that is or has reached a temperature sufficiently higher than its boiling point at atmospheric pressure.