Wednesday, December 24, 2008

Ice cool

Some of u might ask... what the hell u need a heat exchanger for? Well its for my com. I have a cooling bug. You see, most computers today running at a higher power compared to those old school computers where a passive heatsink could cool it efficiently. But with todays technology, dual core and quad core processors are hot. You might say active air-cooling(aka with fans on heatsink) are enough to cool that tiny nuclear reactor u have in ur com. Its true that with some high end third party heatsinks we could cool it efficiently. But as most of us knows that air has low thermal capacity while water or oil has better thermal capacity. For example, 1 kg of air has less capacity to absorb heat compared to water or oil. You can check on any sientific websites to prove this point.

The main reason for most people with radiators to cool their proc is the ability of water to absorb more heat compared to air when the proc is overclock. Overclocking is to make the processor to run at higher frequency, higher voltage and higher power than manufacturers specifications. With increase voltage, the processor will be running at higher wattage than its specified. For example, Intels dual core procs are rated at 65 watts while the quads are rated at 95. Meanwhile Extreme series procs are rated around 100++. With higher wattage means more heat will be created and dump to the heatsink but heatsinks have their capacities. For example, u can use a use a 1.0Hp air conditioning unit(meant for household usage) to cool down an ballroom hall rite? Therefore a higher capacity cooling device is required. Then comes liquid cooling.

Liquid cooling utilises water as the means of transporting heat from the source of heat to be expelled thru a radiator(aka heat exchanger). This would allow better temperatures and higher headroom for overclocking. Beside that, this would give the proc a better life span as an increment of 10 degrees would reduce the life span of an electrical devide by half. Therefore lower temps could help u keep the computer alive for a longer period.

Now to the parts of a liquid cooling kit. It consist of water blocks(this is where the heat is transfered from the source to the water), pumps(to pump the liquid around), radiator(to exchange the heat from liquid to air), tubings(to keep the water inside and away from any electronic parts), and reservoir(to keep extra water inside).

WATER BLOCK




RESERVOIR


RADIATOR


PUMP


TUBES

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