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Machines Can’t Always Take the Heat

Two engineers explain how heat waves threaten everything from cars to computers

Photo by Daoudi Aissa on Unsplash
Matthew T. Hughes
Srinivas Garimella
Wed, 09/27/2023 - 12:02
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Not only people need to stay cool, especially in a summer of record-breaking heat waves. Many machines, including cellphones, data centers, cars, and airplanes, become less efficient and degrade more quickly in extreme heat. Machines generate their own heat, too, which can make hot temperatures around them even hotter.

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We’re engineering researchers who study how machines manage heat and ways to effectively recover and reuse heat that is otherwise wasted. There are several ways extreme heat affects machines.

No machine is perfectly efficient; all machines face some internal friction during operation. This friction causes machines to dissipate some heat, so the hotter it is outside, the hotter the machine will be.

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