Wind Energy Harvesting


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Wind Energy Harvesting

  1. 1. Wind Energy Harvesting Manasa.K CWB0912002-FT2012 M. Sc. (Engg.) in Electronic System Design Engineering Module Leader: Mr . Ugra Mohan Roy M.S.Ramaiah School of Advanced Studies 1
  2. 2. Contents • Introduction • History • Gearless BTPS • BPTS Design • BPTS description • Technical Specifications • Conclusion M.S.Ramaiah School of Advanced Studies 2
  3. 3. Introduction • The terms "wind energy" or "wind power" describe the process by which the wind is used to generate mechanical power or electricity. • Wind turbines convert the kinetic energy in the wind into mechanical power. • This mechanical power can be used for specific tasks (such as grinding grain or pumping water) or a generator can convert this mechanical power into electricity to power homes, businesses, schools etc. M.S.Ramaiah School of Advanced Studies 3
  4. 4. History Smock mill Sails Tower mill Wind Pumps Wind Turbine M.S.Ramaiah School of Advanced Studies 4
  5. 5. Gearless Blade Tip Power System • Blade Tip Power System (BTPS) replaces the traditional gear box, shaft and generator of current wind turbine technology. • The gearless Blade Tip System creates a “free wheeling’’ turbine, generating energy from the blade tips (where the speed lies) rather than through a mechanical centre gear. M.S.Ramaiah School of Advanced Studies 5
  6. 6. BTPS Design • It utilizes a system of magnets and stators surrounding its outer ring. • Captures power at the blade tips where speed is greatest, practically eliminating mechanical resistance and drag. • Rather than forcing the available wind to turn a generator, the perimeter power system becomes the generator by swiftly passing the blade tip magnets through the copper coil banks mounted onto the enclosed perimeter frame. • The Blade Tip Power System addresses past constraints such as size, noise, vibration and output. M.S.Ramaiah School of Advanced Studies 6
  7. 7. Description M.S.Ramaiah School of Advanced Studies 7
  8. 8. Description • This design using BTPS allows kinetic energy to be harnessed from a smaller, more economical swept rotor area, to pass it’s magnets at as high a rate of speed, it has similar generating capacity as the traditional turbines. Advantage of this is, it can be operated in any wind speed. • The electricity is generated through stator technology using the patented BTPS at the outer perimeter of the wheel, where the speed lies. Speed travelled at the outer perimeter of the circumference is 9 times greater than the feet per second speed at the centre shaft, thereby eliminating the need for a traditional gear drive to induce higher revolutions per minute at a generator. This reduces the manufacturing cost. • The different rotor design, a free spinning wheel, does not experience those excessive harmonic vibrations. M.S.Ramaiah School of Advanced Studies 8
  9. 9. Technical Specifications • Wind turbine is a gearless wind turbine that measures just 6 feet (1.8 m) in diameter. • Weighs 241 lbs (110 kgs), Directional Fins: 16 lb. (7.3 kg) and produces up to 1500 kWh’s per year depending on height and location. • Made of polycarbonate, aluminum and steel. Blades: 20 Glass Filled Nylon (10 short and 10 long) • Sound Power Level: At 10 ft. (3 m) away, less than 35 dB at 30 mph (13.4 m/s) • Temperature - Operating, Storage and Transportation:-40 C to 60 C(-40 F to 140 F) • Wind Turbine’s BTPS perimeter power system and unique design of multi-stage blades allows the system to react quickly to changes in wind speed. • This ensures that the maximum wind energy is captured without the typical noise and vibration associated with traditional wind turbines. • Wind turbine has an increased operating span over traditional turbines with a startup speed as low as 0.5 mph (0.2 m/s), cut in at 3 mph (1.34 m/s), with an auto shut off at 38 mph (17.0 m/s), traditional gearbox turbines require minimum wind speeds of 7.5 mph (3.5 m/s) to cut in and start generating power. M.S.Ramaiah School of Advanced Studies 9
  10. 10. Conclusion • Wind energy harvesting is one of the fastest growing sources of electricity and one of the fastest growing markets in the world today. • Some of the benefits associated with wind energy harvesting:  Green Power: The electricity produced from wind power is said to be "clean" because its production produces no pollution or greenhouse gases.  Sustainable: Wind is a renewable energy resource, it is inexhaustible and requires no "fuel" besides the wind that blows across the earth.  Affordable: Wind power is a cost-competitive source of electricity, largely due to technological advancements. M.S.Ramaiah School of Advanced Studies 10
  11. 11. References • S. Clarke – Engineer Rural Environment/OMAFRA (September 2003) Electricity Generation Using Small Wind Turbines at Your Home or Farm [Online] available from< > [Sep 2003] • WindTronics Honeywell-The WindTronics Wind Turbine – Model BTPS6500 [Online] available from < > [n.d] • POPSIC- The future now A personal turbine makes your rooftop into a wind farm[online] available from < >[n.d] • Ugra Mohan Roy (2012) Wind Energy Harvesting, from ESE2513,4th Session Large area Electronics, M.S Ramaiah School of Advanced Studies (MSRSAS) M.S.Ramaiah School of Advanced Studies 11
  12. 12. Thank You M.S.Ramaiah School of Advanced Studies 12