BS499: Part 1 1991 Glossary for welding, brazing, and thermal cutting. Fusion welding, with or without filler metal, in which the heat for welding is produced by the combustion of a fuel gas or gasses with an admixture of oxygen. Gas welding in which the fuel gas is acetylene.
Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline (petrol), diesel fuel, fuel oil, biodiesel blends, or coal.According to the type of engine, it is discharged into the atmosphere through an exhaust pipe, flue gas stack, or propelling nozzle.It often disperses downwind in a pattern called an exhaust plume. The American English word gasoline denotes fuel for automobiles, which common usage shortened to the terms gas, motor gas, and mogas, and thus differentiated that fuel from avgas (aviation gasoline), which is fuel for aeroplanes. Many scientists use the term "climate change" instead of "global warming.". This is because greenhouse gas emissions affect more than just temperature. Another effect involves changes in precipitation like rain and snow. Patterns in precipitation may change or become more extreme. Since hydrocarbon fuels only contain two elements, we always obtain the same two products when they burn. In the equation below methane (CH 4) is being burned. . 184 425 406 453 234 282 247 474