| That desk in front of you and everything
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| | convection. Eventually all the air inside
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| else around you is made up of atoms. An
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| | the computer case will get hot, so fans
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| atom consists of electrons orbiting
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| | are used to blow the air out of the case
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| around a nucleus. An atom is increadibly
| |
| | of the computer.The heat has moved from
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| tiny. You could line up 10 million of
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| | the CPU, to the heat sink, to the air
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| them inside a millimeter. What if we
| |
| | inside the case, to the air in the room
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| could scale up an atom so that the
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| | where you're sitting at your computer
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| nucleus was the size of a basketball? The
| |
| | desk. The room starts to get hot, and
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| orbits of its electrons would then be 15
| |
| | eventually the air conditioner turns
|
| miles away.From this you can understand
| |
| | on.You can view an air conditioner as a
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| that atoms are almost all empty space.
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| | "pipe". A fan blows the hot air from your
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| The nucleus of the atom is composed of
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| | room through fins that transfer the heat
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| quarks. If you could see a quark or an
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| | to a liquid. The liquid is piped to fins
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| electron up close, it might appear as a
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| | outside the house. A fan blows cooler
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| tiny vibrating glow of energy. It turns
| |
| | outside air past the fins to remove the
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| out this world, which is causing us so
| |
| | heat from the liquid.The air conditioner
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| many problems and so much stress, is
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| | has an evaporator valve that changes the
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| mostly an illusion!The electrons orbit
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| | liquid to a gas after the heat is
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| the nucleus at about the speed of light.
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| | removed. In a gas, the molecules are
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| If you could see them, they might appear
| |
| | further apart than in a liquid. This
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| as a blur. They do not orbit in a plane
| |
| | causes it to cool down quite a bit more.
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| like the pictures in books. They create a
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| | The gas goes through the fins inside the
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| shell. Sometimes two or more atoms will
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| | house, picking up heat. It is then
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| share electrons, causing them to link
| |
| | compressed into a liquid to concentrate
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| together forming a molecule.Looking at
| |
| | the heat so the outside fins can remove
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| that desk in front of you again, it looks
| |
| | the heat more efficiently.Shuttle's
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| pretty solid. Actually, unless your desk
| |
| | I.C.E. (Integrated Cooling Engine) Heat
|
| is floating in deep space where the
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| | Pipe uses a very similar method to cool a
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| temperature is close to absolute zero,
| |
| | CPU. The CPU has a heat sink with copper
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| the molecules of your desk are vibrating
| |
| | heat pipes. The heat of the CPU causes
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| like crazy. Picture the molecules
| |
| | liquid coolant inside the heat pipe to
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| bouncing around and smacking into each
| |
| | change to a gas. Convection created by
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| other like balls on a pool table.If you
| |
| | the pressure of the gas moves the coolant
|
| have ever played pool, you're very
| |
| | to a second heat sink where a fan is used
|
| familiar with how when a pool ball hits
| |
| | to blow the heat out of the computer's
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| another pool ball, it transfers it's
| |
| | case. Releasing the heat causes the
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| energy to the second pool ball. When heat
| |
| | coolant to change back to a liquid.
|
| causes molecules to vibrate, they
| |
| | Gravity then carries the coolant back to
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| transfer energy between each other in a
| |
| | the CPU heat sink.One last method of heat
|
| similar fashion. This action is called
| |
| | transfer we haven't discussed yet is
|
| "conduction".Now picture the CPU of a
| |
| | radiation. Some of the heat of the CPU
|
| computer cooking away because the
| |
| | and the heat sink is released as infrared
|
| designer wants to push too much power
| |
| | radiation. Similar to light (although
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| through a small piece of silicon. If we
| |
| | invisible to human eyes), the radiation
|
| don't take away that heat as fast as it's
| |
| | strikes the insides of the computer case,
|
| created, that CPU will fry!The problem is
| |
| | causing it to get warm. Ultimately the
|
| usually solved by mounting a heat sink on
| |
| | computer case itself acts as a heat sink
|
| the CPU. Conduction causes the heat to
| |
| | conducting heat to the outside air.This
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| move from the hot CPU to the cooler heat
| |
| | article explains the three ways -
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| sink. Because air doesn't conduct heat as
| |
| | conduction, convection, and radiation -
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| well as metal, We apply a thin layer of
| |
| | that heat is transported from a computer
|
| heat sink compound between the CPU and
| |
| | CPU to the air outside the computer case.
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| the heat sink to fill in any gaps.You'll
| |
| | You now understand the thermodynamics of
|
| notice that a heat sink has fins on it.
| |
| | a computers and why it is important to
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| The fins allow the heat sink to conduct
| |
| | maintain its various
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| the heat to the air adjacent to the fins.
| |
| | components.Copyright(C) Bucaro
|
| The fins provide more surface area to aid
| |
| | TecHelp.Permission is granted for the
|
| in conduction. Eventually the adjacent
| |
| | below article to forward, reprint,
|
| air will get as hot as the heat sink and
| |
| | distribute, use for ezine, newsletter,
|
| conduction will cease.If we move the air
| |
| | website, offer as free bonus or part of a
|
| away from the heat sink, it will take the
| |
| | product for sale as long as no changes
|
| heat energy with it. A fan mounted on the
| |
| | are made and the byline, copyright, and
|
| heat sink is used to move the air. This
| |
| | the resource box below is included.
|
| method of heat transfer is called
| |
| |
|
