The Fascinating World of Mechanical Engineering
Words: 492 Pages: 2 2385The May 2009 issue of Mechanical Engineering details an interesting addition to the alternative fuel market: the hydrogen-powered car. In contrast to the standard combustion engine present in most vehicles on the road today, hydrogen-powered cars have no harmful emissions and are powered by the most plentiful element in the universe. “PEM [Proton Exchange Membrane] fuel cells use hydrogen and oxygen to generate electricity, with water and heat as byproducts of the electrochemical reaction.” The hydrogen fuel cell is an […]