Fossil Fuel

Fossil fuel is a general term for buried combustible geologic deposits of organic materials, formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth’s crust over hundreds of millions of years.

The burning of fossil fuels by humans is the largest source of emissions of carbon dioxide, which is one of the greenhouse gases that allows radiative forcing and contributes to global warming.

IMPORTANCE

Fossil fuels are of great importance because they can be burned (oxidized to carbon dioxide and water), producing significant amounts of energy per unit mass. The use of coal as a fuel predates recorded history. Coal was used to run furnaces for the melting of metal ore. Semi-solid hydrocarbons from seeps were also burned in ancient times, but these materials were mostly used for waterproofing and embalming.

Commercial exploitation of petroleum began in the 19th century, largely to replace oils from animal sources (notably whale oil) for use in oil lamps. Natural gas, once flared-off as an unneeded by product of petroleum production, is now considered a very valuable resource. Natural gas deposits are also the main source of the element helium.

WHAT WE DO FOR FOSSIL FIRED THERMAL POWER PLANTS

Ayvaz produces internal and external pressured expansion joints for accommodating the thermal expansion movements in the pipeline systems of the boilers, steam and gas turbines which produces electricity out of directly burning the fossil fuel like Natural or uses the steam power which is produced by burning coal or oil.

Ayvaz produces high convoluted LENS expansion joints and fabric expansion joints for hot air lines and ducts with both circular and rectangular cross sections. LENS type expansion joints are very much preferred with their suitability for easily being repaired in case of a failure without stopping the system or removing the expansion joints. Fabric belts and bolsters can also be replaced easily and quickly where they are placed especially for the dust ducts.

Compensating larger amount of thermal expansions by axial expansion joints are only possible by increasing the number of corrugations of the bellow, but this increases the possibility of squirm risk. Ayvaz’s Externally pressurized expansion joints provide the most suitable solution for high axial movement needs. There are no limits to the size of axial movement that can be absorbed by this type of expansion joint.