Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
May contain nuts.

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


       

automobile roof vent wind mills

 Heat vents for parked cars that spin small tubines to charge battery.
 
(0) 		  [vote for,
against]

Mount flat vents on the top of cars that have have little heat, wind, turbines to charge the car batteries. When parked in the sun the vents can be opened and vent heat from interior.
—Imathinker, Jul 05 2004

Heat - powered fans http://www.halfbake...0-_20powered_20fans
No batteries. [phoenix, Oct 17 2004]

Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.
Short name, e.g., Bob's Coffee
Destination URL. E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)






       Weird, I was just thinking about a rooftop whirligig generator, but for houses.
With how hot cars get in the summer I think it's a fine idea to use that excess heat. Too bad it would not work as well in the winter when it would be needed the most.		   

       Without a continuous supply of fresh air I don't think you're going to capture much energy.
—phoenix, Jul 06 2004
   


 

back: main index
business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle