Kite Energy Fundamentals and Applications
Table of Contents
Airborne Wind Energy Textbook ... being built since January
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bait-ferry Kite system
that captures the kinetic energy of the wind to power the transport of
fishing or other animal bait to a desired location.
in logging, kite systems carry logs to target locations.
balance in kites
balanced kites In AWECS, the having of more than one kite with an initial
trunk tether while branched tether permit a variety of branching of
working kite units stay in balance so that destructive interference does
not occur during production of energy for useful works. The balance may
be simplistic or very complex. Scores of fighter kites have been
balanced even though they have highly erratic motions. The
Rotokite has soft balanced kites in rotational balance for yo-yo
energy-production method. Also, two kites balanced in timing for
one going out while other depowered coming in are balanced smartly by
controllers and kite-control units. Rigid kiteplanes may be
controlled for balanced rotation branched from a single tether with
turbines on the kiteplanes. A doctoral student is revisiting in
2010 the challenges of AWE balanced kites: Reinhart
Paelinck Peter R. Payne
recited in his patent in Fig. 3 the means of keeping two kites in
balance while being flygens and having their short tethers emanating
from a single point on a main non-sweeping tether. See
dancing kites The AWE Community is invited to advance the
"dancing kite" file for all.
image for full instruction.
M2699 and its following posts. See also:
M2704 and its following posts.
Note: The use of the adjective of "balanced" has other uses in
kiting. Elementary symmetrical balancing of a kite's lifting body
is one such use; upon balancing left and right weight and/or aerodynamic
performance, one may say that one has a balanced kite (up to those
balancers are used in kite systems.
balancing a kite What are
the ways to balance a kite system?
Notice the difference: spherical rolling elements are used in "ball"
bearings; other shapes of the rolling element, say cylindrical or
conical shapes provide other realms of bearings. Roller bearings is the
general term. See also cylindrical roller bearing, ________
ball bearings play an increasing role in some AWES
ball-bearing tip refers to an
easily rotatable tip of a hang glider
Single-skin-partial-second-surface canopy wing, an echo of Barish
Sailwing P2S technology!
...destined for manned and unmanned explorations in kiting and
SSP2S PG: Single-Skin--Partial-2nd-Surface PG
Barrentina HyperLite, Barrentina Hyper Lite (BHL)
1er vuelo de altura del BATLITE 1.8 de ADRENALINE PARAGLIDERS
BatLite 1.8 ( = Adrenaline Paragliders' version of the simple surface
high! July 2012.
"Making-of" Video, of BHL JAP Singleskin Prototype.Detailed
information about this project on Laboratori D´envol. laboratoridenvol.com/
This video is not an instruction, it just shows some steps of a
possible building process.
Enjoy and feel free to leave a feedback.
buildings, antennae, spans, earth
baseload Also: base load
[Ed: Oil and coal do not want to admit such a possibility as
baseloadAWE, however baseloadAWE is coming.]
baseload generation One author proposes: "wind
and solar are not baseload generation." Need that
persist; that is, could wind and solar become baseload generation?
AWE can be part of the solution. Toward making wind a baseload
Ref1 There are reaches toward
wind baseload and solar baseload.
See also: ground station or groundstation
BEAN In his discourse he brings in another
major acronym: BEAN :: Bearingless End-braked Autogyro Node.
Also another of his key acronyms is STALK STALKs
Free Rotor by Colin Jack. An acronym in his patent.
Stack To Altitude LinKage In
his discourse he brings in another major acronym: BEAN ::
Bearingless End-braked Autogyro Node
Beaujean Dr J. M. E. Beaujean, Joseph Marie
Elise Beaujean; company: Bogey Venlo B.V. in Venlo, Netherlands.
Civil engineering. AWES concept of 2012 announcement.
AWES6109 and following. Discuss there.
Same: Drs. J.M.E (Sjef) Beaujean, Sjef Beaujean
Eurospiraal B.V. For some mindset behind his move toward huge
AWES, meditate over his spiral for transport of large prefabricated
pipes and complex cables, etc. Floating Spiral Method.
Editorial: Consider a complex spiraled hull holding water turbines;
tug it out to sea and fly traction kites to pull the full device
broadside while making electricity and manufacturing chemicals including
hydrogen. Products could be stored in another spiraled complex and towed
to ports for release of the products.
kite gliders, gyro gliders, giro gliders, giro kites,
gyroplane, gyro copter, auto giro, auto gyro, autogiro, autogyro, giro
copter, etc. He used the control method that was evident in
at least 1908 in Breslau with pilot hung from wing behind A-frame, the
control method used by Spratt, ski kites, and hang gliders. The Breslau
use was cable-stayed triangle with pilot hung from behind the A-frame.
Bensen used several morphs of the control method, one of which was
ornamentally directly a triangle control frame with pilot hung behind
the frame. Mechanix Illustrated, August 1954, see issue.
belly band (part of a kite's bridle)
Consider if BES was intended: Bose-Einstein Statistics (BES)
best kite for power generation is a
myth, as niche purpose will have its own strong contenders
Betz, A., "Das Maximum der
theoretisch mo'glichen Ausnutzung des Windes durch Windmotoren,"
Zeitschrift fur das gesamte
Turbinenwesen, Heft 26, Sept. 26, 1920.
Converting wind's kinetic energy to another form of energy slows the
Betz limit, Betz law, Betz' limit, Betz' law
independent discoveries of the turbine efficiency limit: The
Lanchester derived the same maximum already in 1915. The leader of
the Russian aerodynamic school,
Zhukowsky, also published the same result for an ideal wind turbine
in 1920, the same year as Betz did.
It is thus an example of
"The most interesting finding of our analysis is that the maximum
efficiency of the plane propeller is about 30 percent for free fluids.
This is in a sharp contrast to the 60 percent given by the Betz limit,
commonly used now for decades. It is shown that the Betz overestimate
results from neglecting the curvature of the fluid streams. We also show
that the three-dimensional helical turbine is more efficient than the
two-dimensional propeller, at least in water applications. Moreover,
well-documented tests have shown that the helical turbine has an
efficiency of 35 percent, making it preferable for use in free water
currents." Gorban, Gorlov, Silantyev
Number of blades in HAWT, AWE or tower-held? Theory?
Correlations with end use?
Reynolds number, cut-in, hysteresis, form-factors, materials, handling,
scaling, speed-limiting, cultural-preferences, budget, purpose, life of
project, initial costs,
Upon failure of a wind-energy turbine of any sort, what is the amount of
space and distance required for setback from vital settings in order to
address parts where they should not be? For AWES, the range for
wing and tether fall is to be considered.
boat, boats, boating Boats
play parts in many kiting systems, even AWES. The boat may be a
servant tool to kite operations. A boat may hold water turbines and be
tugged by tethered wings. A boat may be the anchor to a kite system. A
kite system wing may even morph to become a boat. A boat may morph to
become a kite system. Large utility-scale kite sailing boats or
ships are extant. Patents on large hulls and large kites are slated to
become chemical factory and energy producers that will supply ports.
John Borsheim, president of American Test Engineering Corporation (ATEC)
of Austin, Texas.
boundary-layer constrained devices
Earth or a planet's atmosphere boundary zone
boundary layer control BLC Perhaps
better: boundary zone control.
Many contrivances have been explored to affect the boundary layer flow
on wing; some of these methods may play in control of AWECS lifting
bodies for control, lift, asymmetrical flight, adjustments for balance,
increasing energy production, ...
Boundary zone. Boundary-zone
thickening by objects roughen the surface of the earth. Objects
that project upwards deflect the wind and thicken the boundary
zone as the object blunt the wind and damp some of the wind's kinetic
energy. AWECS are more of that projecting of roughness.
kite system might be forced into a bowtie configuration as a result of
turbulence, some failure, control,
Generally a bowtie would be an unwanted event. However, leave open the
possibility of deliberately setting a system into bowtie for some
reason. Notes are welcome.
term for high jumping (jump up to a branch, jump over a branch) ...
term for structure of kite tree pattern where lines branch out
to wing elements; this may be repeated for several levels of branching.
At a junction may be a split to two, three or more further branches.
term use for the cascade of bridle or tether lines to a wing in a
kite system, as in gliding kite paraglider. There may
be one level, two levels, three levels, or more levels. Branching
permits the use of smaller diameter lines while a bridling of a wing is
effected; the wing may be just canopy or airframed wing.
Hovering Wind Turbine Technology. Hillsborough, New Jersey.
HWTs "It is also particularly attractive applying HWT offshore
in deep-water sites for the production of hydrogen fuel," said Briza.
"Multiple large arrays of HWT can be affordably anchored to the ocean
floor to generate multi-megawatts, and hydrogen can be locally produced
and collected in a platform through a network of underwater pipes."
It seems as though their former website is inactive. The holdings seem
to have been purchased by another company. News is invited.]
broad gauge (rail)
Rails are proposed in various AWECS. wiki
Brush, Charles F. Windmill generating
electricity 1887-88 RefGen1
bullroarer (sometimes found "bull
roarer" Some vibrate without rotating continuously about its long
axis, but some do rotate continuously about its long axis to be itself
then a rotating flip wing ... a foundation for flip-wing rotor kites,
rotor kite rotating ribbon arch kites. Some are tethered on
cords. Some are not tethered on cords.
For the continuously
rotating flip-wing sort of bullroarer we have two aerodynamic effects:
1. Basic Bernoulli airfoil lifting that dominantly forms flipping
moment, and 2. the involved circulating air forms an air cylinder where
on such air form is a secondary effect of Magnus effect.
(Sometimes: bungie cord or bungy cord)
(Occy strap / Octopus strap in Australian common usage)
Energy may be stored in the bungee cord; release of that energy
uncontrolled may cause injury or death. Uses are many.
Glider launch (unmanned or manned).