The Race to 100 MPG

Based on data from compressor prototypes, Rabroker believes the StarRotor will convert between 45 and 65 percent of the chemical energy in its fuel to mechanical energy, irrespective of the engine's operating speed or power. In contrast, a typical gasoline engine has a peak efficiency of about 30 percent at full throttle and operates at a much lower efficiency during typical driving conditions. "Double is a gimme," Rabroker says of the StarRotor's potential. "I think we can ultimately triple the fuel mileage."

Double or triple, though, what's important is that innovators are developing solutions to our oil predicament--solutions that could have a huge influence before the first hydrogen-powered car ever leaves the lot.

When Billy Baker isn't writing about the automotive industry, he's working on a book about the juggling subculture.

Article courtesy of 'Popular Science' magazine, online at popsci.com.

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