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.
The flue is the metal duct work, ceramic piping or brick chimney stack that runs from a firebox to the top of a chimney to the outdoors. The flue directs exhaust gases and debris from a fireplace upward to vent outdoors into the atmosphere.