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WIND TURBINE

WIND TURBINE. J. Michael Mongan M2 Solids LLC 248 891 6560. HISTORY. Developed Starting July 2008 Provisional Patent September 2009 Full US Patent application approved, 7887283. COMPONENT FEATURES. Axle is horizontal and sits square to the wind for normal operation.

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WIND TURBINE

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  1. WIND TURBINE J. Michael Mongan M2 Solids LLC 248 891 6560

  2. HISTORY • Developed Starting July 2008 • Provisional Patent September 2009 • Full US Patent application approved, 7887283

  3. COMPONENT FEATURES • Axle is horizontal and sits square to the wind for normal operation. • Blades are cut from sheet metal for economical manufacturing. • Blades are simpler to install. Curvature is achieved at installation. • Rotor is shielded for maximum efficiency. Counterproductive winds are blocked. • Yaw angle provides speed control, no blade pitch adjustment needed. • Dual permanent magnet generators allow capturing higher speed winds. • Clutches allow engaging one or both generators. • Power is transmitted from the axle end to the clutch and generator by roller chain for durability. • Dual disk brakes for additional safety.

  4. SAFETY • Blades don’t fly, anchored at both ends. • Blades are non flammable. • Blades are not the prime lightning target. • No gear train to catch fire. • Generators hang outboard for more effective cooling.

  5. BLADES • Blades are cut from flat sheet material. Aluminum used for prototype. • Hinge plates are attached at either end for ease of installation. • Curvature is attained at installation. • Blade failure is not the catastrophic event of propeller blades. • No pitch control needed. • As designed, blades operate as three pairs. Three blades are considered best practice. • Blade replacement is simpler and safer. • Blades may be more bird friendly. • Blades less subject to a lightning hit, not the highest point.

  6. CENTER WHEEL • Combination of Ferris wheel and flying buttress. • Blades act as buttress elements. • Wheel is rigid to axle, as if the axle of the Ferris wheel were extended in both directions. • Axle rides on common pillow block type bearings. • Unaffected by generator heat.

  7. YAW CONTROL • Yaw is the rotation about the vertical axis. • Winds naturally shift. The yaw angle tracks the changes in wind direction. • Blades handle any sudden shift in the wind direction or velocity without damage. • Rotor slows as yaw angle is turned off point of the wind. This is the high wind strategy. • Axle can be turned directly into the wind for hurricane conditions. • Yaw angle determined by real time controller.

  8. GENERATORS • Roller chain drives at end of axle. • Power transferred through clutches to generators. • Dual generators, first for low speed wind, second to cut in at high wind speeds. • Permanent magnet generators for low rpm. No gear train. • Mounted near axle in wind shielded area for better cooling. • Output in AC current sent to rectifier and converted to DC. • DC stored in battery pack. • On demand, electricity drawn from battery by Inverter. • Inverter converts to conditioned AC. • Excess AC sold to power grid.

  9. SHIELD • For any turbine, wind tends to rotate blades both clockwise and counterclockwise. • It is blade geometry that picks which direction dominates. • Two part shield blocks wind from the lower half. This negates the counterproductive winds. • Increases productivity 50% • Shield can be painted with signage for advertising, school pride, farm name, etc.

  10. TOWERS AND SITING • Foundation requirements • Soil requirements at site • Open lattice towers • Enclosed tubular towers • Building mounted • Wind studies • Local Preferences • Access to Grid

  11. THREATS • Contraction of the wind energy market. • Piracy of intellectual property in 3rd world and elsewhere. • Attacks by competitors over safety and regulatory issues. • Grid integration standards.

  12. CHALLENGES • Streamline to minimize drag. • Shielding the drive train. • Design of large yoke units. • Over-rotation controls. • Best practices for field installation. • Engineering of controls package. • Power capture and grid integration. • Cost effective warranties. • Maintenance and repair best practices. • Technician safety and ease of access. • Market acceptances.

  13. OPPORTUNITIES This rotor is projected to perform well in several different markets . • Tidal power generation is an emerging technology. • Floating platforms for off shore wind generation. • Run of the river. • Transportable models for military and civilian needs such as mining in remote areas. • Utility scale models for competing in the megawatt range.

  14. GOALS • Revise two foot diameter prototype to best practices. Perform controlled testing on prototype. Develop power curve. • Design first production model. • Subject CAD model to simulation studies to maximize wind capture and validate design. • Perform DFMEA. Study warranty and liability issues. • Secure factory space and begin fabrication of production model. • Dry run shakedown at factory. Generator studies. • Install first production model at approved site for certification test run. • Initiate production and marketing to generate cash flow.

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