Teens Invent Freon-Free Air Conditioner

Three teenagers have come with an idea that would eliminate the use of Freon in automobile air-conditioning systems by relying on the Peltier effect. With their invention, Tyler Lyon, Daniel Winegar and Chad Thornley won the first-ever "Ricoh Sustainable Development Award" in May. Their device taps into the car's electrical system, using fans to blow hot air through five Peltier chips and then releasing cold air. The product would free drivers from Freon, which despite improvements, remains an ozone-depleting chemical in current air-conditioners. The Peltier chips, which they purchased on eBay for $9.99 each, have a life span of 20 to 30 years and an unfaltering cooling capacity. Like every component in their invention, which can be minimized in size to about 2 inches in width, the chips are recyclable. Via: Salt Lake Tribune