What is the primary purpose of a boiler in a power plant?

The primary purpose of a boiler in a power plant is to generate steam for power production or heating purposes. Boilers are crucial components in thermal power plants, as their primary function is to heat water to produce steam, which acts as the driving force for turbines that convert thermal energy into mechanical energy. This mechanical energy is then converted into electrical energy through generators.

In addition to generating steam for electricity production, boilers may also provide steam for heating applications, such as district heating systems or industrial processes. The efficiency, capacity, and design of a boiler can greatly influence the overall performance and efficiency of a power plant, making it a central piece of equipment in thermal energy conversion.

While other options relate to functions within a power plant, they do not capture the main role of the boiler. Converting mechanical energy to electrical energy pertains to turbines and generators, while cooling steam condensate is part of the condensation process and related systems. Providing compressed air for tools is unrelated to the boiler’s primary function, as that task typically involves air compressors. Thus, the role of the boiler as a steam generator stands out as the key purpose in a power plant setting.