Pulverized Fuel Firing of Boiler

The solid-fuel firing method is inefficient to take care properly the fluctuations of the load. There is a limitation in the combustion process. Solid-fuel firing method is not stable hence not suitable for large capacity thermal power plants. The flue gases contain a large quantity of ash, and for large capacity boiler, it is difficult … Read more

Fluidized Bed Combustion | Types and Advantages

Fluidization is a method of mixing fuel and air in a specific proportion, for obtaining combustion. A fluidized bed may be defined as the bed of solid particles behaving as a fluid. It operates on the principal that when an evenly distributed air is passed upward through a finely divided bed of solid particles at … Read more

Methods of Firing Steam Boiler

For obtaining maximum fuel combustion efficiency it is required to complete combustion of fuel inside the boiler furnace. For that, the sufficient supply of air and proper mixing of air with fuel are primary requirements. Adequate supply of fuel particles for proper burning also to be maintained. The combustion should produce designated temperature of the … Read more

Steam Boiler Furnace Grate Firebox Combustion Chamber of Furnace

The heat required for producing steam in a boiler is generated at boiler furnace by combustion of fuel. What is Combustion? Combustion is a chemical process during which oxygen is combined with different elements of fuel. During this combination, a definite amount of heat is produced per unit mass of combustible element depending upon the … Read more

Principle of Solid Fuel Firing

There are two methods available in solid fuel firing. Hand Firing Hand firing technique can handle the boiler of small output. Here, we feed coal into the furnace with shovels. The primary and secondary air for combustion we control with dampers. The grate of such type of boilers consists of vertical iron bars over which … Read more

Electric Arc Furnace

Electric Arc Furnace means an extremely hot enclosed space, where heat is produced by means of electrical arcing for melting certain metals such as scrap steel without changing electro-chemical properties of the metal. Here, electric arc is produced between the electrodes. This electric arc is used for melting the metal. The arc furnaces are used … Read more

Coal Combustion Theory

Combustion is a rapid chemical reaction between fuel and oxygen. When combustible elements of fuel combine with O2, heat energy comes out. During combustion combustible elements like Carbon, Sulfur, Hydrogen etc combine with oxygen and produce respective oxides. The source of oxygen in fuel combustion is air. By volume there is 21% of Oxygen presents … Read more