Oxyhydrogen - Wikipedia, the free encyclopedia. For bacteria which oxidize hydrogen, see Knallgas- bacteria. Oxyhydrogen is a mixture of hydrogen (H2) and oxygen (O2) gases. This gaseous mixture is used for torches to process refractory materials and was the first. Theoretically, a ratio of 2: 1 hydrogen: oxygen is enough to achieve maximum efficiency; in practice a ratio 4: 1 or 5: 1 is needed to avoid an oxidizing flame. For the stoichiometric mixture, 2: 1 hydrogen: oxygen, at normal atmospheric pressure, autoignition occurs at about 5. The amount of heat energy released is independent of the mode of combustion, but the temperature of the flame varies.

Oxyhydrogen - Wikipedia, the free encyclopedia. For bacteria which oxidize hydrogen, see Knallgas- bacteria. Oxyhydrogen is a mixture of hydrogen (H2) and oxygen (O2) gases. This gaseous mixture is used for torches to process refractory materials and was the first. Theoretically, a ratio of 2: 1 hydrogen: oxygen is enough to achieve maximum efficiency; in practice a ratio 4: 1 or 5: 1 is needed to avoid an oxidizing flame. For the stoichiometric mixture, 2: 1 hydrogen: oxygen, at normal atmospheric pressure, autoignition occurs at about 5. The amount of heat energy released is independent of the mode of combustion, but the temperature of the flame varies.

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The energy required to generate the oxyhydrogen always exceeds the energy released by combusting it, even at maximum efficiency. The input energy of a closed system will always equal the output energy, as the first law of thermodynamics states. It produced a flame hot enough to melt such refractory materials as platinum, porcelain, fire brick, and corundum, and was a valuable tool in several fields of science. It is used for cutting and welding. It is named after Yull Brown, who claimed that it could be used as a fuel for the internal combustion engine. The most common and decisive counter- argument against producing this gas on board to use as a fuel or fuel additive is that more energy is needed to split water molecules than is recouped by burning the resulting gas.

Managing Information Technology Brown 7th Edition. 14-09-2016 2/2 Managing Information Technology Brown 7th Edition. Other Files Available to Download New evidence; Myth-Conceptions. When BG is used as a torch fuel-gas, it can weld virtually any.

Gas Torch and Thermite Welding. Ball, Philip (September 1. NASA Glenn Research Center Glenn Safety Manual.

An air- hydrogen torch flame reaches 2. The Engineering Toolbox. Chemical Discovery and Invention in the Twentieth Century. Adamant Media Corporation. A Practical Treatise on the Use of the Blowpipe in Chemical and Mineral Analysis.

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