Class 4 (4th Engineer) MEKG 📅 Dec 2024

Exam Question

Describe the constructional features of plate type fresh water generator and its operational procedures for fresh water generation; (6)

(a) State the temperatures and pressures at salient points (4)

(b) State some of the advantages and limitations that exist in using a plate type heat exchanger. (6)

Reference Answer

### (a) Constructional Features & Operational Procedures of a Plate Type Fresh Water Generator
#### **Constructional Features (6 Marks)**
A plate-type freshwater generator (FWG) is a compact and efficient unit designed to produce fresh water from seawater by vacuum distillation, utilizing waste heat from the main engine jacket water. The primary components are housed within a single shell or frame.
1. **Plate Heat Exchanger Pack:** This is the core of the unit, typically divided into two sections within the same frame:

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