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→Air Conditioning
== Air Conditioning ==
A water-based chiller provides air conditioning. The chiller circulates chilled water through a water distribution system to the cabins, to cool them in summer. All pipes should be insulated to prevent condensation. (Similarly, if you opt for forced air, the ducts should be insulated.)
The heat exchanger can be water-air or water-water. A water-air exchanger would have to work against the heat in the engine room, so it makes more sense to use a water-water heat exchanger with a keel cooler as a heat sink. This is overall more efficient (the temperature differential is higher with water), and avoids generating extra heat in the engine room.
Additional cooling for one zone is provided by the Glacier Bay cold-plate refrigeration system [8]. (A high-efficiency 12-VDC old-plate design was chosen for the refrigeration to reduce AC loads, while not imposing a continuous DC load. Excess capacity may be used for air conditioning.)
== Related Systems ==