At the end of this lesson, you will be able to describe the equipment used to recover waste heat in a boiler. You will also be able to describe the basic design and operation of a superheater, economizer, and air preheater. • Describe three types of heat recovery equipment • Explain the purpose of a convection superheater • Explain the purpose of a radiant superheater • Describe the purpose of an economizer and the location of the economizer in the boiler • Explain the difference between a counterflow economizer and parallel flow economizer • Explain the purpose of an air preheater and describe the difference between tubular and regenerative air heaters
