Friday, December 5, 2008

Two interesting wind technologies for the US Military

520H Aeroturbine is essentially two 510V turbines joined horizontally by a shared alternator. The approximate weight of the 520H is 750 lbs. which includes the alternator. The 520H can be bolted or ballasted down horizontally and, like the 510V, is stackable end-to-end. While the 510V works well in multi-directional winds, the 520H requires a dominant wind direction; for maximum efficiency, the rotational axis of the 520H must be oriented perpendicular to a location’s dominant wind direction. The building must have a special shaped roof, a pitched roof is best for the wind to rise above and flow into the turbines, like a wind ramp (see the Mercy Lakefront project roof detail). Flat roofs will not work because the wind will blow over the turbines instead of into them. The standard 520H Aeroturbine is 9 ft. tall and approximately 21 ft. long end to end.

In order to operate efficiently, Aeroturbines must be building attached and above or away from surrounding trees and other obstructions, and in an area with average wind speeds of at least 15 mph.

All Aeroturbines are designed and custom-built to fit the architecture of the building. Exact costs will depend on project location, number of turbines purchased, and the required mounting method. The 520H Aeroturbine has an estimated cost of $20,000. This price includes the 2 rotors, cages, all the custom mounting structures, and electronic equipment.

I could see Aerotecture technologies being used on large military buildings. In addition, possible uses on military command posts. There best power outputs would probably be on naval bases, and bases generaly near lakes, and oceans.

Annual Energy Production (AEP) 2000 kWh*
Instantaneous Power Rating (IPR) 1.2 kW (1200 watts)*
Standard Unit Height 30 ft | 9.1 m
Total Weight 600 lb | 273 kg
Color Soft Silver
Sound imperceptible @ 10 mph;
8.8dB above ambient @ 50 mph
Warranty 5 year limited warranty

Rotor Type Vertical Axis - Low Speed Giromill
Rotor Height; Radius 20 ft | 6.1 m; 2 ft radius | 0.6 m
Swept Area 80 sq ft | 7.43 sq m
Max Rotor Speed 500 RPM*
Peak Tip Speed Ratio 2.8
Speed Control Dual Redundant: passive aerodynamic; electronic
Wind Tracking Instantaneous

Generator High Efficiency Brushless Permanent Magnet
Inverter Custom Integrated Grid Tie 120 VAC 60 Hz
Inverter Certification ETL: Meets IEEE 1547.1; UL 1741
Performance Monitor Integrated Wireless Zigbee Modem

Wind Ratings
Cut-in Wind Speed 9 mph | 4 m/s
AEP Average Wind Speed 12 mph | 5.4 m/s
IPR Rated Wind Speed 25 mph |11.2 m/s
Survival Wind Speed 100 mph | 45 m/s

Foundation Poured Concrete
Foundation Size 2 ft diameter by 6 ft base*
Rotor Material Aircraft Grade Extruded Aluminum
Monopole/Structure Material Recycled High Grade Steel
Coatings Corrosion-resistant industrial grade paint

Mariah WindSpire technologies could be used in parking lots of military bases, and places that have no operational use. In the future I could see small windspire farms powering entire military bases, in addition solar power could be used to power military plug in electric vehicles.

As a quadropple threat; solarwall, high efficiency solar panels, windspire and aeroturbines could be used in area's with decent sunlight and windspeeds. Therefore providing 3 sources of energy and one great source of heat.

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