What role does an economizer play in a boiler system?

An economizer plays a critical role in enhancing the efficiency of a boiler system by recovering waste heat from flue gases. Specifically, it captures residual heat that would otherwise be expelled into the atmosphere through the exhaust, which helps to preheat the feed water entering the boiler. This preheating process reduces the energy required to convert the feed water into steam, leading to significant fuel savings and improved thermal efficiency of the boiler. By lowering the overall energy consumption, economizers contribute to more sustainable operations and can also extend the lifespan of the boiler by decreasing thermal stress on the system.

This energy-efficient operation underscores the importance of economizers, especially in industrial applications where large amounts of steam are generated. It helps facilities achieve energy targets and reduce greenhouse gas emissions, aligning with broader environmental goals.