What is the primary purpose of performing a boil-out procedure in naval boilers?

The primary purpose of performing a boil-out procedure in naval boilers is to remove unwanted deposits. During operation, boilers can accumulate a range of contaminants such as scale, sludge, and other impurities that can negatively impact the boiler's efficiency and performance. These deposits can build up on the heat transfer surfaces and impede water flow, leading to overheating and potential damage.

The boil-out procedure involves the use of chemical agents, often alkaline solutions, that help dissolve these deposits and facilitate their removal. By thoroughly cleaning the boiler, the procedure ensures that the system operates at optimal efficiency, reduces the risk of damage from overheating, and helps maintain the longevity of the equipment. This maintenance step is crucial for ensuring safe and efficient operation of naval boilers.