Power Plant Boilers: Combustion and Operation

List elements needed for combustion in a boiler. Describe the parts and function of a typical burner in a boiler furnace and how the burner helps to satisfy the elements of combustion in a boiler. Describe the fuel system for a typical coal-fired boiler. Describe a typical burner for an oil-fired boiler. Describe a typical burner for a gas-fired boiler. Define the following terms: fuel/air ratio excess air and excess oxygen. Describe operator responsibilities associated with maintaining the correct fuel/air ratio. Trace the air and gas flow path through a boiler. Explain how hot combustion gases are used to increase boiler efficiency. Describe the basic operation of two types of air preheaters. Describe some of the harmful effects that can be caused by combustion gas byproducts. Describe equipment commonly used to remove particulates and harmful gases from combustion gases.