How to keep your laptop from overheating with coins.

September 10, 2020 , , , , , 0 Comments

In our time, it is difficult for a person to do without a computer. Many people prefer to limit themselves to laptops, because they do not take up much space, and their mobility even allows you to take equipment with you on the road. At the same time, with intensive use, this technique tends to heat up. Can I cool my laptop at home? We offer a simple and very cheap life hack.


About the potential of copper coins

About five years ago, a life hack for cooling a laptop appeared on Twitter, but the media paid attention to it only this year. Japanese engineer Suzuki Akinori suggests using copper coins for this purpose. The photo shows Suzuki spreading stacks of 10 yen coins, cast from a copper alloy, on the hottest part of the body.


The fact is that copper has a higher thermal conductivity than aluminum or plastic, which are used in almost all laptop cases. The thermal conductivity of copper is 401 W / (m K), aluminum - 202-236 W / (m K), plastic - 0.1-0.3 W / (m K). Obviously, plastic is a common heat insulator.


And in the case when the temperature of the conventional copper radiator (stack of coins) becomes lower than the temperature of the case, it will be possible to efficiently remove the heat generated by the laptop without making the slightest effort. It should be noted that the convective process (natural cooling) is almost independent of the characteristics of the material that gives off heat.



The inhabitants of Japan are more fortunate with coins than the Russians. Coins in denominations of 10 yen are minted almost from pure copper. They are 97% of this metal. The residents of Russia will also be able to find such people, however, for this they will have to try hard. For example, the old Soviet money until 1961 was produced from copper-nickel or copper-zinc alloys.


Copper coins have not been produced in Russia since 1926, although before that they had been minted since 1700.


Today's coins in denominations of 10-50 kopecks are cast from brass. The thermal conductivity of this material is 106 W / (m · K). The indicator is much lower than that of aluminum, so you should not use such coins to cool the aluminum case. But for a plastic case, such a cooling element is quite suitable.



Does the method work

Many Twitter users have taken advantage of the life hack, even Americans. They used British one penny or American one cent to create a mini radiator. The idea was even used to cool components in the computer system unit.


Not everyone liked Suzuki's idea. "Why look for copper coins and place them on the case if there are other cooling methods?" - users write. Some offer to purchase a cooling system, the use of which allows you to achieve a much more efficient result.


For normal PC operation, owners should not forget about basic hygiene rules: periodically wipe the surface of equipment from dust. As a preventive measure, experts advise regularly cleaning the air ducts with a vacuum cleaner, not forgetting about such specialized devices as cooling pads.

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