(a) Sketch and explain a fully automated air conditioning system for accommodation spaces, annotating the relevant temperatures and relative humidity's throughout the system.
(12)
(b) Describe how bacteria are prevented from multiplying to a harmful level in an air conditioning system.
(4)
Reference Answer
### Part (a): Fully Automated Accommodation Air Conditioning System A fully automated air conditioning system for ship accommodation is designed to maintain a comfortable and healthy environment by controlling temperature, humidity, air purity, and air movement. The system typically operates on a recirculation basis with a fresh air supplement, utilizing a central Air Handling Unit (AHU) and a chilled water plant. #### 1. System Components and Operation The system operates by conditioning a mixture of fresh and recirculated air and distributing it to the various accommodation spaces. The process can be broken down as follows:
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