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Radiators
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Radiators, as the name suggests, are devices
that radiate heat. These heat-exchanging devices can be found
in automobiles, buildings and electronics.
This device is designed to transfer heat from the water that
flows through it, to the air blown through it by the fan.
Often, a radiator is made of a long copper or aluminum tube,
bent several times to form a rectangular shape.
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Numerous small aluminum fins surround the tube. The aluminum draws
heat from the warm cooling fluid inside the tube. Once the fins
are heated, they release heat into the air, cooling the engine.
The radiator has a neck that ends in a cap. The liquid coolant,
usually a mixture of water and ethylene glycol, is added through
this cap. The cap, known as the “pressure cap”, keeps
the pressure under control. Once a predetermined level of pressure
is reached, the cap gives way, releasing the pressure to prevent
any sort of explosion.
The flow of the liquid coolant
determines the actual cooling capacity of the radiator. In
some models, the aluminum tubes have a type of fin inserted
into them, known as a turbulator.
This increases the turbulence of the fluid and in the process,
increasing the cooling capacity of the radiator.
A radiator must be well maintained to ensure it performs
its function properly.
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The liquid coolant must be regularly monitored and care should
be taken that it is not completely depleted. As the coolant keeps
cycling through the equipment, it does not require changing on a
daily basis. Care should be taken to ensure that the flow of the
coolant is not hampered by any obstruction. Regular cleaning of
the radiator will prevent overheating and avoid any major accidents.
Each different type of radiator, whether automobile, building or
electronic, has its own limitations and this should be kept in mind
while using or servicing them. Proper care and maintenance of the
radiator will ensure that the device works well.
Article Source: http://EzineArticles.com/?expert=Steve_Valentino
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