Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
MeirG
User Rank
Rookie
re: Piezoelectric scheme seeks to reap the wind while driving
MeirG   2/10/2010 8:31:50 PM
NO RATINGS
Of course you need to burn gas to produce electrical energy. And that's also how electricity produced by a rotating generator is "harvested". No one yet did anything to circumvent Newton's law. So the question is one of overall efficiency. Which one's is higher, a Piezoelectric device or a rotating generator's. Also which is smaller, less expensive to manufacture, more reliable and less expensive to maintain.

N2Hmm
User Rank
Rookie
re: Piezoelectric scheme seeks to reap the wind while driving
N2Hmm   12/3/2009 3:00:12 AM
NO RATINGS
Gulton and Piezo Electric products tried doing something like this 20+ years ago. The problem was the ceramic material would fracture over time with the flexing of the material. You need a polarized material that is not as rigid.

pfiekowsky
User Rank
Rookie
re: Piezoelectric scheme seeks to reap the wind while driving
pfiekowsky   12/3/2009 12:19:41 AM
NO RATINGS
According to the article, and previous work, the energy is more-than free. You actually burn less gasoline. How does it conserve energy? Reduced heating of the wake and the airfoil skin. It reduces turbulence by absorbing the vibration energy on the skin. 30 years ago they talked about similar energy absorbing skins that allowed some fish and some submarines to go faster than a hard skin would allow. Very cool.

chandan_e
User Rank
Rookie
re: Piezoelectric scheme seeks to reap the wind while driving
chandan_e   12/2/2009 7:36:44 PM
NO RATINGS
The energy from this scheme is not free. It ultimately comes from the gasoline that powers the vehicle. If it produces 200 watts, you have to burn that much more gasoline.

Les Slater
User Rank
Rookie
re: Piezoelectric scheme seeks to reap the wind while driving
Les Slater   12/2/2009 4:47:31 PM
NO RATINGS
Neat, producing electrical power while reducing drag, a double win. Environmental power harvesting has great future potential.

teix
User Rank
Rookie
re: Piezoelectric scheme seeks to reap the wind while driving
teix   12/2/2009 3:30:01 PM
NO RATINGS
When we get 200W per square meter this energy is not result from an increase of energy consumption of the vehicle in the same amount?



Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
1 Comment
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Max Maxfield

Recommended Reads From the Engineer's Bookshelf
Max Maxfield
2 comments
I'm not sure if I read more than most folks or not, but I do I know that I spend quite a lot of time reading. I hate to be idle, so I always have a book or two somewhere about my person -- ...

Martin Rowe

No 2014 Punkin Chunkin, What Will You Do?
Martin Rowe
2 comments
American Thanksgiving is next week, and while some people watch (American) football all day, the real competition on TV has become Punkin Chunkin. But there will be no Punkin Chunkin on TV ...

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...