What is a water filled section that surrounds the firebox in a locomotive boiler called?

The section surrounding the firebox in a locomotive boiler is known as the water leg. This component is designed to hold water and ensure that the firebox remains adequately cooled, preventing overheating and structural damage. The water leg also plays a crucial role in maintaining the safety and efficiency of the boiler by absorbing excess heat generated during the combustion process.

In a locomotive boiler, the water leg works in conjunction with other components by providing a barrier that protects the firebox walls and prevents the metal from reaching critical temperatures. This is especially important in maintaining the integrity of the boiler under high pressure and high temperature conditions encountered during operation.

Understanding the function of a water leg is essential in power engineering as it relates to the overall safety and performance of steam generation systems in locomotives and other types of boilers.