Class 4 (4th Engineer) MEKG 📅 Nov 2023

Exam Question

(a) Sketch and describe using a block diagram the processes involved in fuel oil treatment before injection (10)

(b) What is the purpose of centrifuging fuel and how gravity disc is selected (3)

Reference Answer

### (a) Fuel Oil Treatment Process Block Diagram and Description
**Process Description:**
The treatment of heavy fuel oil (HFO) from the bunker tank to the engine injector is a multi-stage process designed to remove solid and liquid contaminants and to condition the fuel to the required viscosity for efficient combustion. The process is as follows:
1. **Bunker / Storage Tanks**: HFO is received and stored. These tanks are equipped with heating coils to maintain a pumpable viscosity.

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