Utility Boilers are used for producing steam for being used in generating electricity. A number of control techniques using Nitrogen Oxides are installed on the mentioned boilers. In such boiler, the controls used for the process of combustion helps in limiting the emission of Nitrogen Oxides using two methods, minimizing the combustion temperature or by limiting the availability of oxygen. The produced steam is used for driving turbine generators.
Design of the boiler :
Design and specifications of the Utility Boiler depends upon the type application for which it is being used. However, all the designs share similar elements such as Nitrogen Oxides. Also, known by the name watertube boilers, the process of combustion is carried out within the furnace from which heat is transferred to the water tubes. It is designed to have particular temperature zone to have optimum heat transfer.