Friday, August 10, 2012

Just How Heat Transfer Works

Heat pipe technology is primarily made use of for heat transfer. Heat pipes are tools that are used to move heat from one point to another without utilizing external power sources. Heat pipes are sealed tubes that are partly filled with fluids that work and help the heat transfer procedure.

Heat is energy being transferred from objects of different temperatures. Heat transfers from an object with a greater temperature to an item of reduced temperature. This is useful in controlling the temp of items or the environment such as rooms and building structures. The temperature of a space can be raised when the weather outside is colder or lowered when the weather outside is warmer. There are three primary ways in how heat is moved. Heat can be transferred with conduction, radiation and convection.

Heat transfer by conduction takes place when heat is moved from one point of an object to an additional of the exact same object. Heat moves through the molecules of the object, causing molecular agitation and giving the object an increase of internal energy. Heat applied to one end of an object at a greater temperature will consistently travel to the end that is colder. Whenever we feel cool, we try to find something warm to touch or hold so we can easily feel warmer.

Heat transfer by radiation occurs when electromagnetic waves are emitted by an object and carry heat away from it. Samples of electromagnetic waves are gamma rays, x-rays, ultraviolet radiation, noticeable light, infrared radiation, terahertz radiation, microwaves and radio waves. Radiation carries energy and becomes heat when it comes in contact with an object. For instance, when light touches a vehicle, the automobile at some point becomes warm. Food gets heated when cooked a microwave. Individuals get sunburned with too much direct exposure to ultraviolet radiation of the sunshine.

Heat transfer by convection happens between materials that are not in contact with each other through movement of air and water when they move away from the source of the heat and carrying the energy with it. We can easily see this when hot air rises from fires or hot objects. An example of the usage of convection might be hot air balloons. The hot air rises, becomes less heavy and increases, as a result expanding the balloon and raising it up.

Heat transfer with heat pipe technology is made use of primarily in HVAC systems to control the temperature and humidity in structures. Heat pipe benefits consist of more efficient heat transfers and heat recovery in HVAC systems in structures while conserving energy and cutting down energy expenses.


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