air rotor system

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Under the Guidance of


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History

Introduction

Principle working

Construction

Lifting Mechanism

MARS 100KW Performance Wind Data

Advantages

Limitations

Applications

Conclusion

Reference


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MARS is a lighter-than-air tethered wind turbine that

rotates about a horizontal axis in response to wind,

generating electrical energy.

This electrical energy is transferred down the 1000-foot

tether for immediate use, or to a set of batteries for later

use, or to the power grid.

Helium sustains MARS and allows it to ascend to a higher

altitude than traditional wind turbines.

MARS captures the energy available in the 600 to 1000-

foot low level and nocturnal jet streams that exist almost

everywhere.


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Magenn Power draws on over 31 years of R&D in advance materials and

structure.

Designed the Magnus Spherical Airship starting in 1978.

Fred Ferguson (founder of Magenn Power) patented the Magnus Airship in the

1980s.

It won the Canadian Government Award of Excellence in 1984. And the Philip

Petroleum Award for Science 1985.

Magenn Power has built and tested several small MARS prototypes in 2006,

and 2007.

In April of 2008, Magenn Power made history by having the world's first

rotating airship.


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The Turbine Filled with Helium is deployed into

the with the help of a tether made from a

Vectran. Vectran is the high-performance multifilament

yarn spun from liquid crystal polymer, which is

stronger than Steel with high Strength to Weight

Ratio.

The wind turns the blades, which spin a shaft,

which connects to a generator and makeselectricity. Utility-scale turbines range in size from

50 to 750 kilowatts.

The wind rotates the turbine at a speed of 30 to

60 rpm.

A reduction gear box is provided to increase the

speed to 1200 to 1500 rpm for the generator toproduce electricity.

The wind turns the turbine which spins the

generator and the electricity is generated.

This electricity is sent to ground by the tether and

can be consumed readily, stored in batteries for

later use or can be supplied to grid.


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The MARS is constructed with Composite Fabrics

used in Airships. the fabric will be either Dacron

with an inner laminated coating of Mylar to reduce

porosity and an exterior coating of Tedlar which

will provide ultra-violet protection.

MARS is filled with helium gas, which is inert and

non-flammable. Helium is a light inert gas and the

second most abundant element in the universe.

Depending on size, either DC or AC generators canbe used, with rectification as necessary. In all cases

the rotation speed is stepped up by a simple gear

arrangement. The MARS which produced 10 kW

unit will be approximately 7.5mx18.2m when

inflated.

The MARS 10 kW unit will require slightly over10,500 cubic meter of helium. MARS units that

operate over 150 feet will have a lighting system

including individual lights that are placed every 50

feet on its tether. The lights will flash once per

second.

Necessary lighting on the Tether to meet FAA(Federal aviation administration) regulations.


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The Helium gas creates a lift force that is in

excess of the total weight of the system. Thehelium provides at least twice the positive

lift versus the overall weight of the MARS

unit.

Additional lift is also created when the rotoris spinning in a wind. The aerodynamic effect

that produces additional lift is called the

Magnus Effect.

Magnus Effect: This effect was discovered in

mid-1800s that creates lift when a spherical

or cylindrical object is spun while moving in

a fluid.


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MARS 100kW Performance Specifications

Magenn Power Product Model 100kW

Rated Power 101,000 Watts

Size (Diameter x Length) 45 ft x 100 ft (plus blade height of 22 ft each)

Shipping Weight Under 13,000 lbs

Volume of Helium 200,000 cubic feet

Tether Height 750 ft standard - up to 1,500 ft optional tether length

Start-up Wind Speed 2.5 m/sec - 5.6 mph

Cut-in Wind Speed 3.0 m/sec - 6.7 mph

Rated Wind Speed 12.0 m/sec - 26.8 mph

Cut-out Wind Speed 24.0 m/sec - 53.7 mph

Maximum Wind Speed 30.0 m/sec - 67.1 mph

Temperature Range -40C /-40F to +45C/+113F

Generators 100 kW Total

Output Form 380 V 3 Phase 50 Hz, 480 & 600 V 3 Phase 60 Hz or Regulated DC

Warranty One Year

Life Cycle 10 to 15 Years

Price (USD) (Estimated) $500,000 USD

Availability 2010-2011 (taking orders now)


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MARS 100kW PerformanceEstimated performance data is shown in the two graphs below. The Annual Energy Output

range accounts for various non-standard wind distributions.


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Low cost electricity - under 20 cents per kWh versus 50 cents to 99 cents per

kWh for diesel

Bird and bat friendly Lower noise

Wide range of wind speeds - 3 meters/second to more than 28 meters/second

Higher operating altitudes - from 500 feet to 1,000 feet above ground level are

possible without expensive towers or cranes

Fewer limits on placement location - coast line placement is not necessary

ability to install closer to the power grid

Mobile

Ideal for off grid applications or where power is not reliable.

Mini-Grid applications such as developing and island nations where

infrastructure is limited or non-existent

Rapid deployment (to include airdrop) to disaster areas for power toemergency and medical equipment, water pumps, and relief efforts (ex.

Katrina, Tsunami)

Off grid uses such as cell towers and exploration equipment

Military payload applications.


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MARS units cannot be installed within five miles of the

boundary of any airport.

Initial cost is high.

floating windmills can plunge down

Below a floating windmill park, nothing can be build

Helium gas leaks at a rate of 0.5 percent per month. Thedrawback of the technology is that the balloon has to be

re-filled with helium every 6 months, seeing as the gas

leaks.

Another disadvantage of floating windmills is that theyhave to be taken down in extremely powerful winds,

whereas common wind turbines are simply shut down.


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MAGENN technology can be applied to Mini-grid, off-grid and combined with

diesel power for developing nations, island nations, farms, remote areas, cell

towers, exploration equipment, oil and gas wells, mining sites, offshore drillingstations, and backup power & water pumps. MAGENN rotors will also be used

for on-grid applications for farms, factories, and remote communities.


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This Kind of technology can reduce our

Dependencies on Fossil Fuels which are Depletingat a rapid rate. As there is no Pollution in this

system Green Energy can be produces which can

reduce green house gases. As it can be near

Demand centers cost on Power lines is reduces.

If this technology is implemented it can

eliminate power problems of all Nations.


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www.magenn.com

www.dicovery.projectearth.com

www.alternateenergy.com

www.all2pchack.blogspot.com for full seminar report
http://www.alternateenergy.com/http://www.all2pchack.blogspot.com/http://www.all2pchack.blogspot.com/http://www.alternateenergy.com/


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