If you placed an air conditioner in the middle of a sealed room and turned it on, several things would happen:
Cooling Effect: The air conditioner would start cooling the air inside the room. The unit pulls in warm air from the room, cools it down through a refrigeration process, and then blows the cooler air back into the room.
Circulation: As the air conditioner operates, it also promotes air circulation. The cooled air is distributed throughout the room, helping to reduce temperature disparities.
Humidity Control: Air conditioners also help control indoor humidity levels. As the warm air is cooled, moisture in the air condenses on the cooling coils, reducing the overall humidity in the room.
Increase in Condensation: With the cooling process, condensation may form on the air conditioner's evaporator coils. Depending on the unit and the humidity levels, this condensation might drip from the air conditioner and pool around the base of the unit.
Pressure Changes: If the room is entirely sealed, the air conditioner's operation could create pressure changes within the room. These pressure changes may not be significant in a regular-sized room, but in a large sealed room, they could potentially affect air movement and comfort.
Heat Buildup: As the air conditioner continues to operate, the cooling process would absorb heat from the room air. However, since the room is sealed, there would be no outlet for this heat to escape. Consequently, the heat absorbed by the air conditioner would gradually build up within the room.
Overworking the Air Conditioner: Without a way for the heat to escape, the air conditioner would be operating in a closed-loop system, continuously trying to cool down the room without ever reaching a stable temperature. This constant cooling would put a strain on the air conditioner, potentially leading to reduced efficiency and increased wear and tear on the unit.
Overall, placing an air conditioner in the middle of a sealed room is not an ideal scenario. Air conditioners are typically designed to cool enclosed spaces while allowing the hot air they remove to be expelled outside through vents or exhausts. In a sealed room, the air conditioner's cooling effect could be limited, and heat buildup would occur, potentially making the room uncomfortably warm over time. If you want the air conditioner to function optimally, it's essential to ensure proper ventilation and allow the hot air to vent outside the sealed room.