Wind turbine crosswind principle
The fundamental concept of the crosswind principle is to exploit the glide ratio (i.e. the lift-to-drag ratio) of a kite to induce a much higher apparent wind speed at the kite, unlike a static kit.
The fundamental concept of the crosswind principle is to exploit the glide ratio (i.e. the lift-to-drag ratio) of a kite to induce a much higher apparent wind speed at the kite, unlike a static kit.
Among novel technologies for producing electricity from renewable resources, a new class of wind energy converters has been conceived under the name of Airborne Wind Energy Systems (AWESs). This new generation of systems employs flying tethered wings or aircraft in order to reach winds blowing at atmosphere layers that are inaccessible by .
The principle of “crosswind kite power” was first introduced in a seminal paper by Loyd (1980), who showed that large amounts of wind power could be harvested inexpensively by means of an aerodynamically efficient tethered wing (or kite) flying at high speed transverse to the incoming wind direction.
This paper presents two novel semi-analytical models for predicting the aerodynamic performance of crosswind kite power systems (CKPSs), where the kite induction effects on the oncoming flow are taken into account. The blade element momentum theory forms the backbone of the models.
cause of this, AWE concepts provide a higher power output than conventional wind turbines, while also being a low-cost alternative, as they operate over a tether-and-spool system, rather than being mounted over large and heavy towers. AWE can take many forms, one of which is crosswind kite power systems (CKPSs), the topic of the current study.
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