View Single Post
Old 07-02-2010, 01:51 PM   #62 (permalink)
AC_Hacker
EcoModding Lurker
 
Join Date: Mar 2009
Location: oregon
Posts: 14
Thanks: 0
Thanked 1 Time in 1 Post
Walking Right Past a Solution...

I understand that this topic is titled "Exhaust Heat Recovery - Steam Power".

In one post, Daox set a modestly low performance bar for this thread:

Quote:
Originally Posted by Daox View Post
If we can recapture even 5% of that heat energy, we would harvest 450W which is enough to charge the battery without any drag on the engine. Anything more than that is simply icing on the cake to do whatever we want with it. I can't imagine it will be incredibly hard to capture 5%.
But in a previous post, Daox had this to say about peltiers/TECs:

Quote:
Originally Posted by Daox View Post
That would be the peltiers/TECs I mentioned earlier. Their efficiency is horribly low, 8% or less I think.
Curiously, the efficiency of the peltiers/TEC approach could actually exceed the low performance bar for the steam method by a considerable margin, and would appear to have none of the complexity and weight issues of steam.

So my question is why walk right past a possible solution?

Quote:
Originally Posted by Daox View Post
Alright fellas, back on topic here. If you want to talk about turbos and peltiers or other ideas please start your own thread (or post in one of the many already started).
-AC_Hacker
  Reply With Quote
The Following User Says Thank You to AC_Hacker For This Useful Post:
ShadeTreeMech (07-03-2010)