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[34] [35] It was an early type of automobile air conditioner [36] and is not used in modern cars relying on refrigerative systems to cool the interior. To cool the air it used latent heat (in other words, cooling by water evaporation). [37] Water inside the device evaporates and in the process transfers heat from the surrounding air.
All three of the apartments above me have positioned their air conditioner window units directly above my back door. When I leave my door open for air in the afternoon, even with the screen closed ...
Opposed blade dampers in a mixing duct. A damper is a valve or plate that stops or regulates the flow of air inside a duct , chimney , VAV box , air handler , or other air-handling equipment. A damper may be used to cut off central air conditioning (heating or cooling) to an unused room, or to regulate it for room-by-room temperature and ...
The Mitsubishi model was the first air conditioner with a cross-flow fan. [64] [65] [66] In 1969, the first mini-split air conditioner was sold in the US. [67] Multi-zone ductless systems were invented by Daikin in 1973, and variable refrigerant flow systems (which can be thought of as larger multi-split systems) were also invented by Daikin in ...
HVAC ventilation exhaust for a 12-story building An axial belt-drive exhaust fan serving an underground car park. This exhaust fan's operation is interlocked with the concentration of contaminants emitted by internal combustion engines. Mechanical, or forced, ventilation is provided by an air handler (AHU) and used to control indoor air quality.
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Engine fan with viscous drive. A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. As temperatures increase, the clutch engages so that the fan is driven by engine power and moves air to cool the engine.
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