Q2
With reference to Air conditioning systems onboard for accommodation spaces:
(a) Sketch and explain a fully automated air conditioning system, annotating the relevant temperatures and relative humidity throughout the system.
(12)
(b) Explain how bacteria are prevented from growing in an air conditioning system to a dangerous degree.
(4)
Reference Answer
### (a) Fully Automated Air Conditioning System A fully automated air conditioning system for accommodation spaces on a ship is typically a central air handling unit (AHU) system with individual cabin control, often using a reheat method. The system is designed to maintain comfortable living conditions (typically 22-24°C and 45-55% Relative Humidity) regardless of external ambient conditions. #### System Components and Operation 1. **Air Intake & Mixing Chamber:**
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