Gas burner

A burner is a device for converting chemical energy into thermal.

Here, a gaseous (eg, propane, butane or natural gas) or liquid ( such as gasoline, diesel fuel, heating oil and kerosene ) fuel with ( atmospheric) oxygen in a continuous reaction ( combustion ) is burned, releasing heat. The hot exhaust gases are discharged through an outlet in the open environment, in a heat exchanger or a heat engine (eg turbine ). It is also possible to use fixed ( fine-grained as possible ) or liquid fuels. The latter are usually injected through nozzles under pressure into the combustion chamber or vaporized in vaporizers. Ultimately, the liquid always is transferred into the vapor phase before the reaction with the oxygen.

The following are the flame types, of which the last two often occur in technical systems in practice:

• Laminar diffusion flames ( eg candles flame)
• Laminar premixed Flames
• Turbulent diffusion flame (eg Direkteinspritzermotor, jet engine, older oil heaters)
• Turbulent premixed flame (eg Bunsen burner, spark ignition engine with manifold injection, new oil heaters)

Furnace burners for the heating and steam boilers: see furnace