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October 6th, 2007
Nanotechnology subject of big talk at conference
Abstract:
Energy was also a focus of a talk at the conference with Clemson University physicist Terry Tritt saying that energy lost from hot engines could save billions of dollars if it could be captured and converted into electricity via thermoelectric devices. Tritt delivered an address at the Alan MacDairmid Memorial Nano Energy Summit at the Dallas event, speaking on challenges in alternative energy.
"Thermoelectric generators are currently used in NASA's deep-space probes to convert the heat of radioactive elements to electrical energy, powering these systems for over 30 years," he said. "Thermoelectric energy conversion is a solid-state technology that is environmentally friendly. One of the more promising ‘down-to-earth' applications lies in waste-heat recovery in cars."
Tritt said more than 60 percent of the energy that goes into an automotive combustion cycle is lost, primarily to waste heat through the exhaust or radiator system.
"Even at the current efficiencies of thermoelectric devices, 7 to 8 percent, more than 1.5 billion gallons of diesel could be saved each year in the U.S. if thermoelectric generators were used on the exhaust of heavy trucks. That translates into billions of dollars saved," Tritt said.
Source:
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