What type of boiler has hot combustion gases passing through tubes surrounded by water?

What type of boiler has hot combustion gases passing through tubes surrounded by water?

• A. Firetube Boiler
• B. Watertube Boiler
• C. Steam Boiler
• D. Condensing Boiler

Answer: (A)

The type of boiler that has hot combustion gases passing through tubes surrounded by water is known as a firetube boiler. In this design, the combustion gases produced by burning fuel flow through tubes that run through the boiler tank filled with water. As the hot gases travel through the tubes, they transfer heat to the surrounding water, which then turns into steam or hot water for heating purposes. Firetube boilers are commonly used for their efficiency and ability to produce steam quickly. Their design allows for easy cleaning and maintenance, as the tubes can be inspected directly. The fact that the combustion gases are contained within the tubes also helps in managing emissions and enhancing safety, as there is less risk of contamination of the water. The other types of boilers mentioned serve different functions. A watertube boiler, for example, has water running through tubes exposed to hot gases, making it suitable for high-pressure applications. A steam boiler is a general term that can encompass both firetube and watertube types and doesn’t specify the design. A condensing boiler is specifically designed for efficiency in condensing exhaust gases and is not characterized by the same tube system as a firetube boiler.

The type of boiler that has hot combustion gases passing through tubes surrounded by water is known as a firetube boiler. In this design, the combustion gases produced by burning fuel flow through tubes that run through the boiler tank filled with water. As the hot gases travel through the tubes, they transfer heat to the surrounding water, which then turns into steam or hot water for heating purposes.

Firetube boilers are commonly used for their efficiency and ability to produce steam quickly. Their design allows for easy cleaning and maintenance, as the tubes can be inspected directly. The fact that the combustion gases are contained within the tubes also helps in managing emissions and enhancing safety, as there is less risk of contamination of the water.

The other types of boilers mentioned serve different functions. A watertube boiler, for example, has water running through tubes exposed to hot gases, making it suitable for high-pressure applications. A steam boiler is a general term that can encompass both firetube and watertube types and doesn’t specify the design. A condensing boiler is specifically designed for efficiency in condensing exhaust gases and is not characterized by the same tube system as a firetube boiler.