FairIP | ||
See also: |
Japanese/Mexican Consortium Develops Mini-AWECS JoeF proposed mini-AWE as a vital application scale. Allister complained that membrane wing-mills don't fire with steady precision. DaveL wished for an AWECS to show 700 hr of reliable "fly & forget" performance. AWE development can be hard work & i am lazy. It took Japanese help to meet these concerns. Pending a phone-call to develop gigawatt scale AWE, the latest KiteLab prototype is a Mini-AWECS based on a Seiko Kinetic Drive (self-winding) Chronometer provided by my brother. It converts wildly chaotic motion into well regulated work. Its visible eccentric rotor is a pendulum ratcheted to drive a tiny generator, which charges a lithium battery, that in turn powers a quartz watch movement. Its a miniature model for future AWE ground-stations into megawatt scale.
The clever added principle of AWECS operation is the classic
chaos
demo of the
Double Pendulum, but run backwards. The watch was mounted as
the bob on a tunable wood pendulum,
elastic damped & driven by a small
membrane wing-mill or flapping kite. The triple chaos of double
pendulum, windfield, & kite are transformed into precision
electromechanical output. (Allister, its damn close to Bond's Oyster
Perpetual). This is an old idea on this forum but the more one studies
this process the more one marvels at its relative efficiency across a
wide bandwidth.
A variety of autonomous kite inputs work well. The UltraKite (TM)
technical pocket sled system with a tiny wing-mill is good for fast
pulses. Its a Morse sled that self-relaunches. A dimestore Gayla
flapping-wing hawk kite gives slower longer strokes, but wants a
chicken-stick for self-relaunch. Tying a wingmill off a tree branch
& running the line indoors models TEWP (Terrain Enabled Wind
Power) & aux power into hybrid plants. Everything works nicely. In
fact, there is far more power available than the watch function
needs (imagine winding a watch for days at a time). Steampunk hint-
an automatic watch mainsprings lets the spring slip in its barrel as
a clutch, if over-wound.
Thank Japanese excellence & KiteLab for the most robust & smallest
complete electro-AWECS yet. Its weather-proof & might run a lifetime
with minor attention. The kinetic drive is standard COTS costing only
a few dollars in bulk. The Chinese make particularly inexpensive
variants. Many high tech applications run just fine on the power
required for a watch. Watches actually consume considerable power,
especially with "complications", as they call added features like moon
phase & tide. Given the current primitive state of the art,
KiteLab can actually rack up new AWE records for endurance, regulated
output, high altitude, etc. with but a dinky set-up.
Here is a detail shot-
This is a demo with the wing-mill short-lined for the camera, which
tuned it a bit fast-
http://www.energykitesystems.net/DaveSantos/seiko2.AVI
4 MB for 5 sec but worth it! Video take of
April 24, 2010 demonstration.
KiteLab Ilwaco
FairIP/CoopIP Historical note:
Some related:
|