The duration of contact between the alumina and the hot gases-is extremely small: it may vary from a fraction of a second to several seconds. In a fraction of a second, the trihydrate particle is raised to a high temperature and is dehydrated more or less intensively according to the temperature of the gas.
A wall outlet is a wall-mounted electrical receptacle that provides a point for consumers to plug in various electronic items. Wall outlets provide flexible access to electricity for use with a wide variety of components. Some come with special features designed for specific applications, like devices used in wet environments.
more HVAC definitions. Automatic Vent Damper- A device installed in a furnace or boiler's venting system to restrict the loss of heat after the furnace or boiler has been shut off. Vent dampers are usually used in conjunction with an intermittent ignition device (IID), but can be used with standing pilot flames as well.