Question

A fire tube boiler has:

A. Water outside the tube and flue gases outside.
B. Water inside the tubes and flue gasses outside
C. Water inside the tubes and water outside.
D. Water outside the tubes and flue gases inside.

Answer 1

A fire tube boiler has Water outside the tubes and flue gases inside, which allows heat transfer from the flue gases to the water to generate steam.

Step-by-step explanation:

The question refers to the configuration of a fire tube boiler, which is a type of boiler used in various industrial processes, including energy generation. A fire tube boiler has option D: Water outside the tubes and flue gases inside. This means that the hot gases produced by the combustion process flow through the tubes that are surrounded by water. The heat from the flue gases is transferred through the tube walls to the water outside, which is then converted to steam. This steam can be used for various applications, such as turning turbines to generate electricity or for heating purposes in industrial processes.

By contrast, a water tube boiler, which is not the subject of this question, has water inside the tubes and flue gases outside, allowing for higher pressure and temperature steam generation suitable for power plants and other high-demand applications.