Gas burner
A gas burner is a device that produces a controlled flame by mixing a fuel gas such as acetylene, natural gas, or propane with an oxidizer such as the ambient air or supplied oxygen, and allowing for and combustion.
The flame is generally used for the heat, infrared radiation, or visible light it produces. Some burners, such as gas flares, dispose of unwanted or uncontainable flammable gases. Some burners are operated to produce carbon black.
The gas burner has many applications such as soldering, brazing, and welding, the latter using oxygen instead of air for producing a hotter flame, which is required for melting steel. Chemistry laboratories use natural-gas fueled Bunsen burners. In domestic and commercial settings gas burners are commonly used in gas stoves and cooktops. For melting metals with melting points of up to 1100 °C, a propane burner with a natural drag of air can be used. For higher temperatures, acetylene is commonly used in combination with oxygen.Flame temperatures of common gases and fuels
The above data is given with the following assumptions:
- The flame is adiabatic
- The surrounding air is at 20°C, 1 bar atm
- Complete combustion
- Peak Temperature
- Speed of Combustion
- Spectral bands also affect colour of flame, as of what part and elements of combustion
- Blackbody radiation
- Atmosphere - affects temperature of flame and colour due to the atmospheric colour effect
Explosive limits and ignition temperatures of common gases
Combustion values of common gases
