Researchers are trying to find a useful outlet for cars' waste heat--namely their electrical load.
General Motors and BMW plan to test devices that will convert excess heat from a car's motor into electricity next year, according to an Associated Press report Sunday.
GM has built a prototype, a metal-plated device that will fit around an exhaust pipe. Researchers told AP that they expect that it could improve fuel efficiency in a Chevrolet Suburban by about 5 percent, or 1 mile per gallon. The improvements would be greater in smaller, more fuel-efficient vehicles.
Auto companies are working with thermoelectrics researchers at Ohio State University … Read more