PROTOTYPING ECO POWER GENERATOR USING GIANT MAGNETOSTRICTION  MATERIAL
CONTENTS <ul><li>INTRODUCTION </li></ul><ul><li>ENERGY HARVESTING </li></ul><ul><li>ELACTRIC POWER GENERATOR SYSTAM </li><...
<ul><li>GMEG </li></ul><ul><li>EXPERIMENTAL SETUP </li></ul><ul><li>EFFECT OF PRELOADING </li></ul><ul><li>VIBRATION DEFLE...
INTRODUCTION <ul><li>Introduces designing & fabrication of alternative & renewable power generator  </li></ul><ul><li>Gene...
ENERGY HARVESTING <ul><li>It is the process of capturing minute amount of energy from one or more energy sources  </li></u...
ELACTRIC POWER GENERATOR SYSTAM
MAGNETOSTRICTION <ul><li>Giant magnetostriction was first found in  </li></ul><ul><li>TbxDy1-xFe0.2  </li></ul><ul><li>APP...
<ul><li>it is a property of ferromagnetic materials  </li></ul><ul><li>it causes to change the shape or dimensions of ferr...
MAGNETOSTRICTIVE MATERIAL magnetostrictive material (inside), magnetizing coil, and magnetic enclosure completing the magn...
GIENT MAGNETOSTRICTION MATERIAL <ul><li>TERFENOL-D </li></ul><ul><li>Terbium(Ter),iron(Fe), Naval Ordance Laboratory(NOL) ...
CHARACTERISTIC OF TERFENOL-D
VILLARI EFFECT <ul><li>Inverse magnetostrictive effect </li></ul><ul><li>variation in mechanical stress induces a proporti...
GMEG <ul><li>Giant Magnetostriction Electric power Generator </li></ul><ul><li>It is the prototype of electric power gener...
 
<ul><li>STRUCTURE </li></ul><ul><li>Based on the cage yoke type giant  magnetostrictive actuator </li></ul><ul><li>It has ...
SCHEMATIC DIAGRAM
EXPERIMENTAL SETUP <ul><li>Check what level of electric power GMEG can produce </li></ul><ul><li>A force is applied to GME...
 
RESULT <ul><li>Maximum current & voltage observed are 214V & 0.48A </li></ul><ul><li>Instantaneous power developed is 103W...
VOLTAGE & CURRENT IMPACT
EFFECT OF PRELOADING <ul><li>The material  consider of as an ellipse  </li></ul><ul><li>When a field is applying to the el...
<ul><li>By rotating the ellipses perpendicular to the applied field before applying the field, the total magnetostriction ...
 
PRELOAD Vs OUTPUT VOLTAGE <ul><li>Effect of preloading on GMEG was examined by varying a preload  </li></ul><ul><li>20 dif...
 
VIBRATION DEFLECTOR <ul><li>A vibration deflector is a mechanism for changing the direction of vibration  </li></ul><ul><l...
<ul><li>Deflector uses less number of parts  </li></ul><ul><li>Deflector allows GMEP to be installed away from a source of...
 
CONCLUSION <ul><li>The device was capable of generating more than 100W when a brass ball of 70g in weight was dropped from...
REFERENCES <ul><li>Yamamoto,Y., Eda,H., Mori.T, Rathore.A, “Smart Vibration Sensor Using Giant Magnetostrictive Materials”...
<ul><li>THANK   YOU </li></ul>
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PROTOTYPING ECO POWER GENERATOR USING GIANT MAGNETOSTRICTION MATERIAL

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Transcript of "PROTOTYPING ECO POWER GENERATOR USING GIANT MAGNETOSTRICTION MATERIAL"

  1. 1. PROTOTYPING ECO POWER GENERATOR USING GIANT MAGNETOSTRICTION MATERIAL
  2. 2. CONTENTS <ul><li>INTRODUCTION </li></ul><ul><li>ENERGY HARVESTING </li></ul><ul><li>ELACTRIC POWER GENERATOR SYSTAM </li></ul><ul><li>MAGNETOSTRICTION </li></ul><ul><li>GIENT MAGNETOSTRICTION MATERIAL </li></ul><ul><li>PRINCIPLE </li></ul>
  3. 3. <ul><li>GMEG </li></ul><ul><li>EXPERIMENTAL SETUP </li></ul><ul><li>EFFECT OF PRELOADING </li></ul><ul><li>VIBRATION DEFLECTOR </li></ul><ul><li>CONCLUSION </li></ul><ul><li>REFERENCES </li></ul>
  4. 4. INTRODUCTION <ul><li>Introduces designing & fabrication of alternative & renewable power generator </li></ul><ul><li>Generator uses vibration as a power source, which is easily accessible in our daily life </li></ul><ul><li>By using the reverse transduction of the material called villari effect </li></ul><ul><li>Giant magnetostriction material is used for the transduction purpose </li></ul>
  5. 5. ENERGY HARVESTING <ul><li>It is the process of capturing minute amount of energy from one or more energy sources </li></ul><ul><li>This energy is storing for the later use </li></ul><ul><li>Piezoelectric material is used for this process </li></ul><ul><li>Creep problem & low susceptibility to mechanical impact are the drawbacks </li></ul><ul><li>Terfenol-D is used as a magnetostrictive material </li></ul>
  6. 6. ELACTRIC POWER GENERATOR SYSTAM
  7. 7. MAGNETOSTRICTION <ul><li>Giant magnetostriction was first found in </li></ul><ul><li>TbxDy1-xFe0.2 </li></ul><ul><li>APPLICATIONS </li></ul><ul><li>Positioning actuator </li></ul><ul><li>Control servo valve </li></ul><ul><li>Mobile robot </li></ul><ul><li>These applications all make use of Joule effect </li></ul>
  8. 8. <ul><li>it is a property of ferromagnetic materials </li></ul><ul><li>it causes to change the shape or dimensions of ferromagnetic material during the process of magnetization </li></ul><ul><li>When we change magnetization the magnetostrictive strain will also change until reaching its saturation value, λ </li></ul><ul><li>The effect was first identified in 1842 by James Joule </li></ul>
  9. 9. MAGNETOSTRICTIVE MATERIAL magnetostrictive material (inside), magnetizing coil, and magnetic enclosure completing the magnetic circuit (outside)
  10. 10. GIENT MAGNETOSTRICTION MATERIAL <ul><li>TERFENOL-D </li></ul><ul><li>Terbium(Ter),iron(Fe), Naval Ordance Laboratory(NOL) & Dysprosium(D) </li></ul><ul><li>Developed in Naval Ordance Laboratory </li></ul><ul><li>The material widely used in academia & industries </li></ul><ul><li>It expands or contracts in a magnetic field </li></ul><ul><li>Magnetomechanical transduction ratio,Elongation,Energy density </li></ul>
  11. 11. CHARACTERISTIC OF TERFENOL-D
  12. 12. VILLARI EFFECT <ul><li>Inverse magnetostrictive effect </li></ul><ul><li>variation in mechanical stress induces a proportional variation in magnetization along the direction applied stress </li></ul><ul><li>APPLICATIONS </li></ul><ul><li>vibration sensor developed by Yamamota </li></ul>
  13. 13. GMEG <ul><li>Giant Magnetostriction Electric power Generator </li></ul><ul><li>It is the prototype of electric power generator using Terfenol-D </li></ul><ul><li>More electric power can generate </li></ul><ul><li>Used for low-power conception electronic devices </li></ul>
  14. 15. <ul><li>STRUCTURE </li></ul><ul><li>Based on the cage yoke type giant magnetostrictive actuator </li></ul><ul><li>It has vibration receiver section,giant magnetostrictive element & structural section </li></ul><ul><li>Effectively forms a closed magnetic circuit </li></ul>
  15. 16. SCHEMATIC DIAGRAM
  16. 17. EXPERIMENTAL SETUP <ul><li>Check what level of electric power GMEG can produce </li></ul><ul><li>A force is applied to GMEG by freely dropping a metal ball(72g) from a height(250mm) </li></ul><ul><li>Terfenol-D rod used in GMEG have 10mm diameter & 25mm length </li></ul><ul><li>Voltage & current produced measured by an oscilloscope </li></ul>
  17. 19. RESULT <ul><li>Maximum current & voltage observed are 214V & 0.48A </li></ul><ul><li>Instantaneous power developed is 103W </li></ul><ul><li>Generated power is proportional to the volume or weight of a giant magnetostrictive material </li></ul><ul><li>Indicates big potential of GMEG to produce electric power, much more than piezoelectric device </li></ul>
  18. 20. VOLTAGE & CURRENT IMPACT
  19. 21. EFFECT OF PRELOADING <ul><li>The material consider of as an ellipse </li></ul><ul><li>When a field is applying to the ellipse model, rotating the magnetization in the direction of the field & observing a change in shape </li></ul><ul><li>magnetostriction may be increased by first applying a &quot;preload” to the material and then applying a magnetic field </li></ul>
  20. 22. <ul><li>By rotating the ellipses perpendicular to the applied field before applying the field, the total magnetostriction is increased over the non-preloaded case </li></ul><ul><li>A similar effect can also be expected for inverse magnetostriction. </li></ul>
  21. 24. PRELOAD Vs OUTPUT VOLTAGE <ul><li>Effect of preloading on GMEG was examined by varying a preload </li></ul><ul><li>20 different choices of preload were applied to GMEG </li></ul><ul><li>A brass ball, 70g in weight, was dropped from 10cm of height ten times and the voltage outputs were averaged for respective preload choices </li></ul><ul><li>optimal preload is about 8 MPa </li></ul>
  22. 26. VIBRATION DEFLECTOR <ul><li>A vibration deflector is a mechanism for changing the direction of vibration </li></ul><ul><li>e.g., from horizontal to vertical or vice versa </li></ul><ul><li>FUNCTIONL REQUIREMENT </li></ul><ul><li>(1) Changing the direction of impact forces from perpendicular to horizontal with as little energy loss as possible. </li></ul><ul><li>(2) Reducing fabrication cost by making its mechanism simple with less number of parts involved. </li></ul><ul><li>(3)Using a material of high strength and rigidity </li></ul>
  23. 27. <ul><li>Deflector uses less number of parts </li></ul><ul><li>Deflector allows GMEP to be installed away from a source of vibration </li></ul><ul><li>Delivering vibration energy from a different direction of vibration source by a design modification of a fan-shaped object </li></ul>
  24. 29. CONCLUSION <ul><li>The device was capable of generating more than 100W when a brass ball of 70g in weight was dropped from 250 mm above </li></ul><ul><li>Preloading affects increases the output voltage of GMEG </li></ul><ul><li>8MPa was an optimal choice for preloading </li></ul><ul><li>Designed and fabricated a vibration deflector for effectively transforming the forces </li></ul>
  25. 30. REFERENCES <ul><li>Yamamoto,Y., Eda,H., Mori.T, Rathore.A, “Smart Vibration Sensor Using Giant Magnetostrictive Materials”, JSME International Journal, Vol. 40, No. 2, C,pp. 260-266, 1997 </li></ul><ul><li>Wikipedia, the free encyclopedia </li></ul>
  26. 31. <ul><li>THANK YOU </li></ul>

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