Dan Cook 2013 masccc


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Dan Cook 2013 masccc

  1. 1. Next  Genera*on  Ver*cal  Axis  “Drag”  Style  Wind  Turbines  Getting  it  Right!  Proper  Siting  of  Wind  Turbines  &    Selection  of  the  Right  Wind  Turbine  Technology  Presenta(on  by:  Daniel  Cook,  Vice  President  Urban  Power  USA  3rd MA Sustainability Communities Conference 2nd MA Sustainability Campuses Conference
  2. 2. Massachuse>s  Renewable  Energy  Goals  198 48
  3. 3. Massachuse>s  Wind  Energy  Profile  Next GenerationVertical Axis Drag StyleWind Energy Opportunities
  4. 4. Small  Wind  Systems   Small-­‐scale  wind  power  systems  have  the  capacity  to  produce  up  to  100  kW  of  electrical  power  DarrieusVAWT Next GenerationDrag StyleVAWT
  5. 5. Tradi(onal  “LiI”  Style    Horizontal  Axis  Wind  Turbines   High  Efficiency   Require  Laminar  Flow  (smooth)  Wind   Work  well  in  wind  speeds  between  18-­‐35  mph   Generates  torque  from  high  rotor  speeds   Generator  located  on  turbine   Lots  of  moving  parts   Require  taller  tower  to                                                                                        eliminate  turbulent  air   Feather  or  shut  down  when                                                                                                  winds  above  35  mph  
  6. 6. Tradi(onal  “LiI”  Style    Ver(cal  Axis  Wind  Turbines   High  Efficiency   Require  Laminar  Flow  (smooth)  Wind   Work  well  in  wind  speeds  between  18–35  mph   Generator  repairs  require  turbine  disassembly   Generates  torque  from  high  rotor  speed   Shut  down  when  wind  speed  greater  than  35  mph   Require  taller  tower  to  eliminate  turbulent  air   Generally  Don’t  operate  at  low  wind  speeds  
  7. 7. “LiI”  Style    Wind  Turbine   Wind turbine blade requires smooth laminar flowwind to create lift for the turbine to spin effectivelyand fast.   Lift type wind turbines don’t become efficient untilthe wind is approximately 18 mph
  8. 8. Savonius  Ver(cal  Axis  Drag  Style  Wind  Turbine    Because of the curvature, the scoops experience less dragwhen moving against the wind than when moving with thewind. The differential drag causes the Savonius turbine tospin.   There is resistance on the back side of the scoop resultingin lower efficiencies than traditional wind turbines. Resistance Impulse Force
  9. 9. Next  Genera*on    Ver(cal  Axis  “Drag”  Style    Wind  Turbines    Significant increase in electrical production   Massachusetts Manufacturer   Work in turbulent wind and laminar flow wind   Work on Flat roof tops  Requires ≥30% larger sweep area
  10. 10. Next  Genera*on    Ver(cal  Axis  “Drag”  Style    Wind  Turbines   Use  wind  loading  like  a  sail  to  create  force   Produces  torque  by  spinning  a  large  mass  slowly   Produce  more  electricity  at  lower  wind  speeds  6-­‐18  mph,  less  at  18-­‐35  mph  and  more  at  high  wind  speeds  >  35  mph   Work  in  turbulent  wind   Don’t  require  tall  towers   Can  be  Roof  Mounted   Few  moving  parts   Bird  &  bat  friendly  
  11. 11. Urban  Power  Unique  Patented  Wind  Turbine  Design  
  12. 12.  5.0  KW    Wind  Turbine  Tower  Installa(on  
  13. 13. Urban  Power  5.0  KW  Wind  Turbines  
  14. 14. Urban  Power  5.0  KW  Wind  Turbines  
  15. 15.  5.0  KW    Wind  Turbine  
  16. 16. Capacity  Factor  The  ra*o  of  an  energy  produc*on  system’s  actual  output  over  *me  to  it  poten*al  output  Solar PV: 13% - 15% Wind: 20% - 40% Note: Wind produces approximately 2X moreelectricity than Solar PV per KW whenproperly sited and equipment properly selected
  17. 17. Small  Wind  Turbines:    Site  Tes(ng    Wind  Speed  &  Air  Flow   Anemometer Testing  Laminar Flow (smooth) Wind  Turbulent Wind (caused by buildings, trees andother nearby obstructions)
  18. 18. Small  Wind  Turbines:    Site  Selec(on    “lift” style wind turbines should be 2X the height ofobstructions & 20X the distance from obstructions
  19. 19. Examples  of  Turbulent  Wind  
  20. 20. Small  Wind  Turbines:    Product  Selec(on   Does the wind turbine work in turbulent wind?(are their buildings trees or other obstructionsnearby?)  Does wind turbine require smooth laminar flowwind away from any obstructions?  Are predominant winds between 18 - 35 mph?  Are predominant winds below 18 mph and/orabove 35 mph?
  21. 21. Small  Wind  Turbines:    Performance   Important that wind manufacturers and winddevelopers apply their wind turbines to theoptimal wind location (wind speed & wind type –laminar and/or turbulent wind) to ensure optimalcapacity factor/performance so customerexpectations are met.  Lift type wind turbines should NOT be placed inturbulent wind locations such as on or nearbuildings, near trees and other obstructions thatcan cause turbulence.
  22. 22. Wind  Energy  Assessments   Consulting  a  wind  map,  obtaining  previously  measured  data     Taking  your  own  measurements  with  anemometer   Hire  consultant  to  test  wind  speed  1  year  of  data,  or   Use  1-­‐  2  months  anemometer  data  to  do  correlation  study  
  23. 23. Small  Wind  Turbines:  Monitoring   Wind turbines should be monitored in real time,and record daily, weekly, monthly, annual andhistoric wind energy production relative to actualwind speeds.
  24. 24. Small  Wind  Turbines:    Tradi(onal  Horizontal  Axis  Wind  Turbine    are  properly  applied  in  Laminar  Flow  Winds  only!!!  Op*mum  performance  between  18  mph  –  42  mph  
  25. 25. Small  Wind  Turbines:    Poor  Applica(ons  “Lift” Style Horizontal &Vertical Axis WindTurbines in theTurbulent UrbanEnvironment ofBoston (5 wind turbines withcombined 15.6 KWcapacity = 15,583 kWhsin 3 years 7 months) 15.6KW - 15,583 kWhs in 43 mos – ave. 362 kWhs /mo
  26. 26. Small  Wind  Turbines:    Turbulent  Wind  Properly  Applied  Next Generation“Drag” Style Wind Turbines in aTurbulent Environment (1.8 KW capacity = 3,433kWhs in 8 month –Easthampton, MA windspeed less than Boston) 18,452 kWh in3 years 7 months
  27. 27. Small  Wind  Turbines:    Summary    Get it Right! Site the RightWind EnergyTechnology in the RightWind Location   Lift Style Horizontal & Vertical Axis Wind Turbines inLaminar Flow Wind only with speeds between 18 mph – ±42 mph   Traditional Vertical Axis Drag Style Wind Turbines inTurbulent and/or Laminar Flow Wind ±8 mph – 42 mph   Next Generation Vertical Axis Drag Style Wind Turbinesin Turbulent and/or Laminar Flow Wind ±8 mph – ±70 mph
  28. 28. Ques(ons  
  29. 29. Thank  You  Dan  Cook,  Vice  President  www.urbanpowerusa.com  978-­‐266-­‐1900