Monday, November 23, 2009

College Student Invents Lightweight Personal Insulation




BYU student Nate Alder brought together a team that designed Argon insulated clothing for a college competition and the idea is now being used in a new line of lightweight commercial products.
Not Just Hot Air | Popular Science:
"During one of the scuba seminars, he learned about how divers in cold climates pump argon gas into their dry suits for insulation. As a former snowboard instructor, he wondered if argon could be used to warm skiers and snowboarders too.

He returned to college, still with no declared major and no knowledge of chemistry but intent on exploring the possibilities of using the gas as an insulator. “I didn’t even know if argon was flammable or toxic,” jokes Alder, now 28. When his research revealed that argon is actually inert and used to extinguish fires in computer labs, he knew he was onto something. He began recruiting BYU business and engineering students and quickly assembled a crack team to flesh out argon-based outerwear that would enable wearers to adjust warmth by simply inflating or deflating a vest.

The group wrote a business plan and entered a BYU competition. “Our first prototype was basically a plastic pillow filled up with the gas,” Alder recalls. Although their idea was unprecedented—no one had ever tried trapping argon for use in cold-weather gear—they finished a somewhat disappointing fifth place and decided to disband."
Their discoveries are now commercial products:
Klymit NobleTek Gas Insulation | Popular Science:
"Cold-weather apparel made with Klymit NobleTek is simultaneously ultralight and hyper-efficient, thanks to chambers that keep the body warm in the same way double-paned windows insulate a building. A layer of argon has the same thermal conductivity as a layer of down or synthetic fiber insulation three times as thick, and unlike those materials, it’s unaffected by wetness or compression. The wearer can adjust the warmth level on the go by connecting a thumb-sized argon canister to a valve in the pocket ..."

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