h a l f b a k e r yBuy 1/4, get 1/4 free.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
Please log in.
Before you can vote, you need to register.
Please log in or create an account.
|
Noise collectors (i.e. microphones) at noisy places (e.g. airports, busy streets) transduce noise into power for off-grid use. Similar to idea for solar devices (like signboards) but could charge and be useful at more times of the day.
Sound Power table
http://en.wikipedia.org/wiki/Sound_power
How many Watts? [csea, Feb 07 2009]
Models for power from noise
http://www.buffalo.edu/news/12733
Mathematical framework in place [Brasgan, Jul 20 2011]
Energy Harvesting
http://en.wikipedia...i/Energy_harvesting
Note: mechanical vibration rather than atmospheric noise [csea, Jul 20 2011]
[link]
|
| |
It would be extremely difficult to harvest any useful amount of power from non-hearing-damage-inducing ambient sound levels (e.g. below 100dbSPL). See [link] for table. |
|
| |
Note that table entries are _source_ powers, and do not represent what power could be collected without completely surrounding the source with "microphones" (which are aptly named.) |
|
| |
You could get an estimate of the power generated by noise by measuring air temperature rise, but it will generally be too tiny to measure. |
|
| |
A non-starter. - But welcome, keep trying! |
|
| |
maybe it would work near a large waterfall? perhaps well enough to allow a remote controlled mute to be added so that the tour guide can be heard when necessary. |
|
| |
EV ( Electrical vihicle) manufacturers are working on
suspension vibration energy absorption power
recovery systems. It's not a lot of power, but it
helps. |
|
| |
//maybe it would work near a large waterfall?// |
|
| |
Maybe a watermill would work better under those conditions. |
|
| |
The world is working on this:
Mathematical models for coherent energy from noise |
|
| |
Well, now that's different. Harvesting mechanical
vibration directly is much more feasible, as the
impedances are much lower. This is a developing
field, so only partly baked. [link] |
|
| |