View Single Post
Old 03-08-2013, 04:54 PM   #17 (permalink)
gone-ot
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
Quote:
Originally Posted by sheepdog 44 View Post
This is actually a real concept. Water under high current and voltage will vaporize and expand violently into steam. The expansion is where the motive energy comes from, not compression. I can't recall if the application was automotive or for a gun. I think the guy didn't fully understand the concept or just didn't express it well. Either way, i don't think his car actually ran using it. I'll try to find a link.
...however, I'd venture that they put IN a lot more ELECTRICAL POWER (kW) than they got OUT in "useful" MECHANICAL POWER, ie: Efficiency (%) is P(out)/P(in)

1 HP = 0.745699872 kW or basically 746 W.
  Reply With Quote