This document discusses a Buoyant Airborne Turbine (BAT) that uses high altitude winds to generate electricity. The BAT is a helium-filled doughnut shape that floats around 1,000 feet in the air, holding a wind turbine. It is tethered to the ground and can generate enough power for over a dozen homes. BATs take advantage of winds that are 8 times stronger and more consistent at high altitudes compared to near the ground. They have benefits like lower installation costs than tower-mounted turbines and can be rapidly deployed. However, safety during bad weather and public acceptance of large floating devices are challenges.

1. BUOYANT AIRBORN TURBINE
PRESENTED BY: GUIDED BY:
AMARJITH KS NISAR O
CEANEME013 ASST.PROFESSOR
S8 ME1 MECHANICAL DEPARTMENT
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2. CONTENTS
 INTRODUCTION
 WIND POWER TURBINES
 AWT
 TYPES OF AWT
 TYPES OF FLY GEN AWT
 BAT
 WORKING
 PRINCIPLE OF HAWP
 HIGH ALTITUDE WIND
 HEIGHT VS WIND POWER DENSITY
 COMPONENTS
 BENEFITS
 APPLICATIONS
 CONCLUSION
 REFERENCE 2

3. INTRODUCTION
 Renewable energy is energy which comes from natural resources such
as sunlight, wind, rain, tides, and geothermal heat, which are renewable.
 Buoyan airborn turbine worked by using high altitude wind energy
,which is 8 times stronger than low altitude wind.
 BAT is one of the classification of Air born wind turbines.
 BAT is float about 1000 to 2000 feet in the air.
 It produce 30kw of energy.
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4. WIND POWER
 Wind power is the conversion of wind energy into a useful form of energy,
such as :
*wind turbines to make electricity,
* wind mills for mechanical power,
*wind pumps for pumping water or drainage,
*used to propel ships
 Wind energy has been the world’s fastest growing source of electricity
during the past decade, with over 20% annual growth
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5. AIRBORN WIND TURBINE
• Those Turbines which float in air, with a rotor supported in air,
attached to a tether.
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6. TYPES OF AWT
 Ground-Gen systems - In which the conversion of mechanical
energy into electrical energy takes place on the ground.
 Fly-Gen systems - In which such conversion is done on the aircraft
in the air.
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7. TYPES OF FLY-GEN AWT
 Plane with four turbines
 Aircraft composed by a frame of wings and turbines
 Buoyant Airborne Turbine
 Static suspension quad-rotor in autorotation
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8.  An airborne wind turbine is a design
concept for a wind turbine with a rotor
supported in the air without a tower
 Known as the BAT — or Buoyant
Airborne Turbine
 white helium-filled doughnut
surrounding a rotor will float about
1,000 feet in the air
 feed enough electricity to power more
than a dozen homes through one of the
cables tethering it to the ground
BUOYANT AIRBORNE TURBINE
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9. BUOYOANT AIRBORNE
TURBINE
 Airborne wind turbines may
operate in low or high altitudes
 An aerodynamic airborne wind
power system relies on the wind
for support.
 Tether reeling speeds and
directions can be adjusted in
response to tether tensions
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10. WORKING
 Turbine starts rotating due to
the flow of wind through the
blades.
 By this way the generator also
starts rotating, since the
generator is coupled with blade.
 The energy produced in
generator is stored in battery
which is placed at ground
station, by connecting with high
tension wires.
 This stored energy can utilized. 10

11. HIGH ALTITUDE WIND
 Winds at higher altitudes become steadier, more persistent, and of higher
velocity.
 High altitude winds are more consistent and average around twice the
velocity, with five to eight times the power density, than those found near
ground-level.
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12.  In the U.S. alone, over 60% of potential wind sites for tower-mounted
systems were found to be uneconomical.
 High altitude winds are one of the largest untapped renewable resources
in the world
 Power increases by the cube of wind speed.
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13. HEIGHT vs WIND POWER DENSITY
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14. COMPONENTS
Shell - A proprietary helium-filled shell made from low weight,
industrial fabrics that lifts the turbine up and stabilizes it in the air.
Turbine - A lightweight conventional four blade, horizontal axis wind
turbine fixed within the shell.
Invertor: Used for converting to DC into AC for external power
supply
Generator: An AC generator is used for converting mechanical
energy into electrical energy
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15. COMPONENTS
Ground Station - The portable ground station is
rapidly deployed from a shipping container and
includes an autonomous control system and power
conditioning equipment
Tethers – The lightweight, high strength tethers hold the turbine in
place in all weather conditions and transmit power to the ground.
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16. BENEFITS
 High Capacity Power
1. Operating up to 600 meters, the Airborne wind turbine generates over
twice the energy of similarly rated tower-mounted wind turbines.
2. The power output from high altitude winds is smooth, consistent, and
easy to integrate
 Siting and Impact
1. It minimizes human and environmental impact when compared to
conventional tower-mounted wind turbines.
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17.  Automated and Reliable Operations
1. Optimize energy generation
2. Manage the docking of equipment to protect it during severe
weather.
 Low Cost
1. Floating turbine reduces the installation and transport cost by up to
90 percent, as it does not require a tower, crane
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18.  Mobility and Rapid Deployment
1. Easy transport, setup, and redeployment
 Additional Revenue from Airborne Services
1. It provides additional services like communication, surveillance, and
sensory equipment
2. It provides a line of sight over 60 miles in any direction, offering a
powerful platform that fixed towers cannot reach.
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19. DISADVANTAGES
 Bad weather in the form of thunder and lightning strikes pose very
serious risk to the destruction of any airborne device.
 No power is generated if the device is retracted during bad
weather
 Safety hazard as the airborn devices and power cable may become
detached or damaged falling to the ground.
 Public acceptance of these large floating airborne devices over
land and residential areas.
 Electrical energy losses in the long conducting cable from the
airborne generating system to the ground.
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20. APPLICATIONS
The Airborne flow turbine is designed for customers in the following
sectors:
 Rural communities
 Island and arctic communities
 Mining and Oil & Gas sectors
 Agriculture sector
 Entertainment sector
 Military sites
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21. CONCLUSION
 Easy deploying
 Far better than conventional systems
 Safety is questioned
 Proper researches can improve its performance
 Reliable and eco-friendly
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22. REFERENCES
 http://www.gwec.net/publications/global-wind-energy-outlook/global-wind-
energy-outlook-2012/
 http://windturbinezone.com/wind-turbine/airborne-wind-turbine
 Elliot, Dave (2014-04-12). "Flights of fancy: airborne wind turbines". Institute of
Physics, Environmental Research Web.
 Michael Specter, "Wind Power Takes Flight", The New Yorker May 20, 2013
 Levitan, David (2012-09-24). "High-Altitude Wind Energy: Huge Potential And
Hurdles" Environment 360.
 http://www.altaerosenergies.com/bat.html
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23. THANK YOU !
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