Box Cooler / Boxcooler – Marine Sea Chest Heat Exchanger for Engine & System Cooling A boxcooler is a U-shaped tube bundle heat exchanger installed inside a sea chest on a ship. It uses seawater as a cold source to cool the ship's main engine, auxiliary engines, generators, hydraulic systems, etc. It eliminates the need for a seawater pump, saves engine room space, and operates thro
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