Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
MeirG
User Rank
Author
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
Author
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
Author
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
Author
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
Author
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
Author
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?



Most Recent Comments
David Ashton
 
R_Colin_Johnson
 
AKH0
 
Wilco1
 
sanyaade
 
zeeglen
 
Gondalf
 
Wilco1
 
Crusty1
Most Recent Messages
7/5/2015
7:46:09 PM
Radio
NEXT UPCOMING BROADCAST

Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.

Brought to you by

July 16, 1pm EDT Thursday
IoT Network Shoot Out
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)
Special Video Section
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
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 ...