Class 4 (4th Engineer) MEKG 📅 Jul 2022

Exam Question

(a) Sketch and describe the fed water system comprising condenser, condensate pump, hot well, feed water pumps, feed water regulator and feed water valves.

(b) Discuss the potential sources of contamination in auxiliary boiler operation and its prevention via correct plant operation and water treatment

Reference Answer

### (a) Auxiliary Boiler Feed Water System
A typical auxiliary boiler feed water system is a closed-loop cycle designed to return condensed steam (condensate) back to the boiler for steam generation. The system ensures the water is clean, de-aerated, and delivered at the correct pressure and temperature.
#### System Components and Operation
The flow of water through the system is as follows:

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