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Does an electric fan lower the temperature of a room?

June 3, 2017 | Author: | Posted in Science

An electric fan running in a perfectly insulated and hermetically sealed room would not make the air in the room cooler, as commonly supposed. In fact, because of the friction developed in the fan, the temperature of a room is slightly increased instead of decreased by setting the air in rapid motion. The cooling effect of the fan results …

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