Quote:
Originally Posted by Tahoe_Hybrid
why don't cars have Vacuum engines? post Cat to recapture lost energy?
 like the Engine Flame Dancer |
*The energy source would be really low grade.
*The fin and tube 'boiler' would be such an exhaust restriction as to destroy the thermal efficiency of the engine you're harvesting the exhaust from.
*The 'vacuum' engine is on the order of 1% thermally efficient.