Thermal Engineering 313310 Practical No: 03 Trace the path of flue gases and water Answer
The Fire Tube Boiler is well suited for low and medium Industries that require steam or high-temperature water, such as textile industries, due to its low-pressure uses. In a few sectors,
raising the temperature of the water or oil is required rather than turning the water into steam. To operate boilers, locating the path of steam and gases is necessary. Learning about Cochran boilers helps students grasp the principles of steam generation, including factors like combustion, heat transfer, and boiler efficiency.
Thermal Engineering 313310 Practical No: 03 Procedure
1. Select the Cochran boiler model for demonstration.
2. Observe the boiler model selected for study purposes.
3. Explain the working principle of a fire tube boiler.
4. Identify the main components of a selected Cochran boiler.
5. Observe the location of each component.
6. State the functions of each component of the Cochran boiler
7. Trace the path of flue gases and water/ steam circuits.
8. Explain the construction and working of the Cochran boiler using a model.
Procedure
1. Select the Cochran boiler model for demonstration.
2. Observe the boiler model selected for study purposes.
3. Explain the working principle of a fire tube boiler.
4. Identify the main components of a selected Cochran boiler.
5. Observe the location of each component.
6. State the functions of each component of the Cochran boiler
7. Trace the path of flue gases and water/ steam circuits.
8. Explain the construction and working of the Cochran boiler using a model.
Observation and calculations
Draw the labeled diagram of the Cochran boiler showing the path of flue gas and water /steam circuit.
Answer:
Practical-related questions
1. List any four names of fire tube boilers.
Answer:
- Cornish boiler.
- Lancashire boiler.
- Locomotive boiler.
- Scotch marine boiler.
- Admiralty-type direct tube boiler.
- Horizontal return tubular boiler.
- Immersion-fired boiler.
- Vertical fire-tube boiler.
2. Write typical specifications any fire tube boiler.
Answer:
Specification of the Cochran boiler:
3. Illustrate the meaning of internally fired boilers and list the names of internally fired boilers.
Answer:
4. State the difference between an internally fired and externally fired boiler.
Answer:
5. State the applications of fire tube boilers.
Answer:
6. Explain why a fire tube is not used in high-pressure applications.
Answer:
7. Collect the information on packaged-type boilers.
Answer:
Conclusion
We completed Thermal Engineering 313310 Practical No: 03 in which we traced the path of flue gases and water steam circuit with the help of a Fire Tube boiler - Cochran Boiler.