Ships have cabins with compact spaces, dense personnel, and complex hull structures, and the air conditioning and ventilation design faces significant challenges. To study the thermal comfort and contaminant removal effectiveness and other indexes when different ventilation modes are used in ship cabins and to guide the design of air conditioning and ventilation in ship cabins, the computational fluid dynamics method was compared and verified with experiments, and then a numerical computation model of the ship’s academic hall was established. Three ventilation design schemes for the ship’s academic hall were compared and analyzed, and the results show that the optimized displacement ventilation has the best thermal comfort indexes, the highest contaminant removal effectiveness, and the thermal comfort indexes meet the standard requirements. The results provide a reference for selecting and designing ship cabin air conditioning and ventilation.
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