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Overview

The following equipment will be covered in this module:

The function of a boiler in the steam cycle is to convert water into steam or hot water. A boiler's operation is the generation of steam, which acts as a medium to convey the energy of the fuel, which is in the form of heat, to a prime mover where that heat energy is converted into energy of motion or work. Boilers vary considerably in detail and design.

Most boilers may be classified and described in terms of a few basic features or characteristics. The most basic classification of boilers is according to the relative location of the fire and water spaces. By this method of classification, boilers are divided into two classes, FIRETUBE BOILERS and WATERTUBE BOILERS. Stationary boilers, such as those found in manufacturing plants, are also rated in terms of boiler horsepower for sizing purposes.