Boiler Fire Tube Comparison: Cornish & Lancashire
Identifying the correct structural characteristics of boilers is key. Both Cornish and Lancashire boilers are types of fire-tube boilers, meaning hot gases pass through tubes surrounded by water.
Cornish Boiler Design
A Cornish boiler is characterized by having a single, large internal fire tube (also known as a furnace tube or flue) that passes longitudinally through the boiler shell.
Lancashire Boiler Design
A Lancashire boiler is similar but contains two internal fire tubes of roughly equal diameter, running parallel to each other through the length of the boiler shell.
Identifying the Correct Statement
Based on the fundamental designs:
- Cornish Boiler: Contains one internal fire tube.
- Lancashire Boiler: Contains two internal fire tubes.
Therefore, the correct statement is that the Lancashire boiler has two fire tubes and the Cornish boiler has one.
Important Questions from Boilers
A device which is used to drain off water from steam pipes without escape of steam is called
______ is NOT a water tube boiler.
Which of the following pipe joints would be suitable for pipes carrying steam?
Filling or decking in a cooling tower increases the rate of heat transfer by providing
The valves mounted on the boilers which change the direction of flow of steam by 90° and valves fitted in the pipelines which allow the steam in the same direction are respectively called as _____.
