Most recent edit:
Wednesday October 24, 2012
* See legal note below.
"Super Carousel" AWES
with high circumferential velocity issues resolved
gigawatt-scale AWES carousel concepts crowded kites around the
circumference of a giant turntable or circular track. Such affairs would
predictably turn very slowly, even at the periphery, with high potential
fouled kites. The capital cost of so much mechanical mass was daunting.
An improvement proposed by KiteLab a few years ago was to reduce the
huge carousel to a far smaller stronger version with a massive vertical
crankshaft receiving tug force from cableways radiating in all directions.
pre-aggregated forces of surrounding kite-array farm cells could sum to
gigawatt-plus scale generation. The compact-carousel distributed-kite
also solved the kite crowding/fouling issue.
A bicycle wheel structural geometry was proposed for the compact carousel.
Crank-driven, it would travel at far faster speeds for optimal electrical
generation. A ring of TGV (electric bullet-train) "engines" of about 5MW
brake output was conceptually envisioned as the moving rim of the wheel.
effect this is a giant single generator unit. The limit case then became
large centrifugal forces in running a train in a tight circle at TGV
several hundred km per hour. Operational issues like "hot" generator
maintenance were new design hurdles.
The solution is elegant and makes for a far more mature "Super Carousel"
concept- Merely keep the electrical train-ring stationary and let the
carousel be the "moving train track" impinging on the "train wheels" set
the surrounding stationary generator ring. The circumferentially stationed
generators become easy to access during operations, to bring online or
The moving mass of the required carousel wheel is greatly reduced, easing
and capital cost.
The flywheel effect of the still massive high-speed wheel would provide
inertial stability, but flywheels as such are not really a competitive
storage solution, and the kite cells can be closely managed to match
Feynman's father famously noted, an electric grid of generators is a
flywheel. One can also drive carousels in motor-mode. Such AWES concepts
scale well beyond all previous power plant technologies.
~Dave Santos 27
Comment and development of this topic will be occurring here.
All, send notes, drawings, and photographs!
- Terms and aspects:
- Related links and concepts:
- Commentary is welcome:
Note: coolIP is hereby defined as a Creative-Commons Unported NonCommercial
so now we are integrated with the latest
standard cooperative IP model, but "coolIP" remains a nice shorthand.