Class 4 (4th Engineer) MEKM 📅 Jan 2024

Exam Question

(a) With the help of a diagrammatic sketch describe Feed water system for the boiler. (8)

(b) What is the function of the Cascade tank or Hot Well? (4)

What is the temperature of hot well normally maintained and how? (4)

Reference Answer

### (a) Boiler Feed Water System
A marine boiler feed water system is a closed-loop system designed to supply the boiler with high-purity, de-aerated water at the required pressure and temperature to generate steam. The system ensures a continuous and reliable supply of feedwater, compensating for steam consumed by various services and any system losses.
**System Components and Flow Path:**
1. **Distilled Water Storage Tank**: This tank stores fresh water produced by the Fresh Water Generator. It serves as the primary source for makeup feed to the system.

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