'Blending wall' stands in way of ethanol growth--Purdue News
December 19, 2008
WEST LAFAYETTE, Ind. - Ethanol production opened the door to the renewable fuels industry. The industry now must get past an imposing wall of federal regulations and market conditions if it hopes to grow, said a Purdue University agricultural economist.
"The ethanol industry is now faced with what is called a 'blending wall,'" said Wally Tyner, an energy policy specialist. "The ethanol industry will not and cannot grow with the blending wall in place. That means we won't have cellulosic ethanol and the demand for corn for ethanol will be limited unless the blending wall is somehow changed or we find a way around it."
Unless the barrier is removed, ethanol production could level off by 2010, Tyner said.
July 21, 2016
The recent recall of hoverboards because of exploding lithium-ion batteries highlights the danger of overheating batteries. Amy Marconnet, an assistant professor of mechanical engineering, can speak about the effects of excessive heating in batteries. Marconnet (pronounced mar-co-nay) founded the Marconnet Thermal and Energy Conversion Lab, where researchers are dissecting the batteries and testing materials making up electrodes and a critical component called a separator. (A video is available at https://www.youtube.com/watch?v=qCTMA8sxZO0) Battery failures have been reported in products ranging from commercial airliners and laptops to hoverboards and cellphones. Chemical reactions in the batteries generate heat while discharging and charging. The separator is a layer of material between the positive and negative electrodes. When it fails due to high heat, the battery short-circuits and could explode.Read Full Story