Advertisement
Find a Car
Go!

Hot Air to Boost Fuel Economy?

Follow Marty

Chrome exhaust pipe

Chrome exhaust pipe

Enlarge Photo
GM is working on a means to capture waste heat generated while operating a vehicle, and using it to improve emissions.

C/Net reports that General Motors has worked on prototypes for a metal-plated device that fits around a tailpipe to trap waste heat and turn it into electricity.

The principle of thermoelectrics creates the possibility of power from heat, and GM is working with researchers at Ohio State University to try to capture the exhaust heat and turn it into power. The heat sink could eventually lead to a 5-percent increase in fuel economy, which could mean an extra mile per gallon in a vehicle like the Chevrolet Suburban.

The tech Web site adds the gains could be even more dramatic in smaller, more fuel-efficient vehicles.  Some 30 to 40 percent of the heat generated during combustion is used by the vehicle, with the rest lost to inefficiency or to cooling.
Advertisement
 
Follow Us

 

Have an opinion?

  • Posting indicates you have read this site's Privacy Policy and Terms of Use
  • Notify me when there are more comments
Comment (1)
  1. Can it be attached to politicians?
     
    Post Reply
    Vote
    Bad stuff?

 

Have an opinion? Join the conversation!

Advertisement
Advertisement
Try My Showroom
Save cars, write notes, and comparison shop with hi-res photos.
Add your first car
Take Us With You!
   
Related Used Listings
Browse used listings in your area
Advertisement

 
© 2014 The Car Connection. All Rights Reserved. The Car Connection is published by High Gear Media. Stock photography by izmo, Inc. Send us feedback.