Jump to content

Brown's gas: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
No edit summary
m +{{Redirect category shell}}
 
(59 intermediate revisions by 15 users not shown)
Line 1: Line 1:
#REDIRECT [[Oxyhydrogen#Brown's gas]]
'''Brown's Gas''' is [[oxyhydrogen|a mixture of oxygen and hydrogen gas]], produced by the common-ducted [[electrolysis of water]], promoted by [[Yull Brown]] as a fuel for [[welding]], [[brazing]], and the like. It is sometimes claimed by others to have special properties that defy the laws of physics.


{{Redirect category shell|
== Welding ==
{{R to section}}

In standard [[Oxy-fuel welding and cutting#Hydrogen|oxy-hydrogen welding]] (using one tank of each gas), the ratio of each gas in the mixture must be very carefully controlled before burning, as excess oxygen will result in [[oxidation]] of the metal, and excess hydrogen will result in [[hydrogen embrittlement]].<ref name="US4014777">{{US patent reference
| number = 4014777
| y = 1977
| m = 03
| d = 29
| inventor = Yull Brown
| title = Welding
}}</ref>

Due to the way it is generated, Brown's gas is already in the perfect mixture required for this type of welding. Brown's welding devices use [[water electrolysis]] in a common chamber to generate a [[stoichiometric]] mixture of hydrogen and oxygen, which is then passed through a flash-back arrestor and into a burner, where it is ignited to create a flame.<ref name="US4014777"/>

This [[oxyhydrogen flame]] is also more convenient than fuels like [[acetylene]] due to the generation of gas on demand instead of buying and transporting containers of fuel. Brown's gas generators only require a source of water and electrical energy.<ref name="US4014777"/>

=== Safety ===

The gases are usually kept in separate tanks due to the danger of explosion if they are ignited inside a tank or device. Brown includes a number of safety devices, however, such as porous plugs that allow gas through but not the heat of a flame, and claims that his welding device is safe.<ref name="US4014777"/>

=== Atomic welding ===

Brown also describes "atomic welding" in his patents, in which an [[electric arc]] is passed through the mixture of gas before burning, so that the gas molecules break into atomic oxygen and hydrogen before recombining, producing a hotter flame.<ref name="US4014777"/>

== Patents ==
*
* {{US patent reference
| number = 4081656
| y = 1978
| m = 03
| d = 28
| inventor = Yull Brown
| title = Arc-assisted oxy/hydrogen welding
}}
}}

== See also ==
* [[HHO gas]]
* [[Oxyhydrogen]]
* [[Oxyhydrogen flame]]
* [[Water torch]]

== References ==
<references/>

[[Category:Pseudoscience]]

[[fr:Gaz de Brown]]

Latest revision as of 18:42, 8 May 2023