Researchers at Massachusetts Institute of Technology (MIT, for its acronym in English) from USA, have developed technology to direct the waste heat each computer chips to power plants for engines of vehicles Electric converting this heat into electricity, according to the school.
The study, published this month in the Journal of Applied Physics', indicates that more than half of all energy consumed worldwide is wasted, much of it due to excessive heat. With this new technology can convert waste heat into electricity that achieving an efficiency several times higher than existing devices.
This type of collection may waste heat, such as mobile phones giving double talk time, the laptops could run twice as long, or power plants could produce more electricity by a similar amount of fuel.
In theory, the conversion of heat into electricity can never exceed a specific value called the Carnot limit, which is based on a nineteenth-century formula to determine the maximum efficiency can be achieved in converting heat into work. But current thermoelectric devices of the present trade only manage a tenth of that limit, says associate professor of electrical engineering at MIT, Peter Hagelstein.
In this experiment, Hagelstein consultant worked with the Naval Research Laboratory for Yan Kucherov demonstrate that the efficiency could reach 40 percent of the Carnot limit. The calculations show that this new type of system could reach 90 percent of the ceiling.
Thus, Hagelstein says that these systems can efficiently convert heat into electricity, but achieving very little power. It is also possible to achieve large amount of power with less energy efficiency and especially with a larger and more expensive. "It's sacrificing one thing for another. But this team has found that using this new system could achieve both aspects at once, "he said.
Now the new technology depends on quantum dot devices, a specialized type of chips in which charged particles are confined to a very small area. These devices are in development, but in a few years could be gained for commercial availability.
addition, the company MTPV (Micron-gap Thermal Photo-Voltaics), founded by Robert DiMatteo is already working on developing a "new technology closely related to the work described in this document," said Hagelstein. DiMatteo said it hopes to eventually market the new idea of \u200b\u200bHagelstein and that new technology may be on the market next year.
also considers that approximately 60 percent of all energy produced or generated by burning fuel in power plants is wasted, causing excessive heat and that this technology could "make it possible to recover a significant proportion of wasted energy." "There is a gold mine in the cost of heat, if it could convert," said Hagelstein.
A rather curious way of getting electricity, but can be very useful because we all use any device with microchips, and allow us to save and not spend so much.
Signed Navy
Farlek
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