ENERGY is Force x Distance! Jim Bos IAEC Forum May 15, 2010   07/06/10
Introduction & Purpose <ul><li>20 years experience in elevator business and technology </li></ul><ul><ul><li>Helping eleva...
Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x T...
Introduction & Purpose <ul><li>Increasingly, both clients and suppliers are becoming more technically sophisticated and th...
Introduction & Purpose   07/06/10
Introduction & Purpose <ul><li>The equations have been presented and mathematically proven by Jim Bos in  Energy is Force ...
Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x T...
Basics of Power, Energy and Efficiency  <ul><li>This presentation is about: </li></ul><ul><ul><ul><li>Hoisting energy - re...
Basics of Power  Watts = Volts x Amps Watts = Newton x meters/sec ( Power = Force x Speed)   07/06/10
Basics of Energy  Watt-sec = Watts x sec Watts-sec = Newton x meter (Energy  = Force x Distance) (Energy  = Power x Time) ...
Basics of Energy    07/06/10   <ul><ul><li>To use Watt-hrs and not newtons here are useful formulas  </li></ul></ul><ul><u...
Hoisting Energy Flow Drive loss Motor loss Hoistway loss Regeneration Basics of Actual Efficiency    07/06/10   Drive loss...
Hoisting Energy Flow Energy  out Energy  in 100 100 Basics of 100% Efficiency    07/06/10   Ideal Energy At Line  At Paylo...
Hoisting Energy Flow Basics of Efficiency    07/06/10
Review of Segment 2    07/06/10   <ul><li>Energy may be thought of interchangeably as: </li></ul><ul><ul><li>Power x Time ...
Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x T...
  07/06/10
  07/06/10
  07/06/10
  07/06/10   0  2  4  6  8  10  12  14  16  18  20  Force (kg) Distance (m) 0 -500 500 1000
  07/06/10   0  2  4  6  8  10  12  14  16  18  20  0 -500 500 1000 Force (kg) Distance (m)
  07/06/10   0  2  4  6  8  10  12  14  16  18  20  0 -500 500 1000 Force (kg) Distance (m)
A = Acceleration (m/sec 2 ) D = Travel Distance (meters) i  =  Imbalance (kilograms) J  = Jerk (m/sec 3 ) M = Mass of the ...
Review of  Segment 3     07/06/10   Confidential  |  © KONE Corporation  |  Presentation name  |  Author <ul><li>Elevator ...
Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x T...
Hoisting Energy Flow   07/06/10
The weighted averages for energy per elevator start in this example: Load = 7.7% of capacity Travel = 50.1% of total trave...
Review of  Segment 4     07/06/10   <ul><li>It is possible to calculate the energy requirement for any particular elevator...
Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x T...
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Presentation on elevator energy to the International Association of Elevator Consultants

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Iaec Presentation

  1. 1. ENERGY is Force x Distance! Jim Bos IAEC Forum May 15, 2010 07/06/10
  2. 2. Introduction & Purpose <ul><li>20 years experience in elevator business and technology </li></ul><ul><ul><li>Helping elevator consultants and architects develop solutions </li></ul></ul><ul><ul><li>Technology / R&D </li></ul></ul><ul><ul><li>Project management </li></ul></ul><ul><ul><li>Global environments </li></ul></ul><ul><ul><li>Multifunctional team management </li></ul></ul> 07/06/10
  3. 3. Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x Time vs. Force x Distance 4. Practical application 5. Q&A 07/06/10
  4. 4. Introduction & Purpose <ul><li>Increasingly, both clients and suppliers are becoming more technically sophisticated and the pace of technical change continues to accelerate. </li></ul><ul><li>The subject of elevator energy is becoming more important both for both new and modernization </li></ul><ul><li>There are many claims of efficiency being made, but how do you verify for your clients? </li></ul> 07/06/10
  5. 5. Introduction & Purpose 07/06/10
  6. 6. Introduction & Purpose <ul><li>The equations have been presented and mathematically proven by Jim Bos in Energy is Force x Distance! published in the October 2009 edition of Elevator World </li></ul><ul><li>Today’s presentation concentrates on understanding and practical application for elevator consultants </li></ul> 07/06/10
  7. 7. Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x Time vs. Force x Distance 4. Practical application 5. Q&A 07/06/10
  8. 8. Basics of Power, Energy and Efficiency <ul><li>This presentation is about: </li></ul><ul><ul><ul><li>Hoisting energy - required to move the elevator system and load </li></ul></ul></ul><ul><li>It will not cover: </li></ul><ul><ul><li>Standby energy - required while the elevator is idle, or standing by. </li></ul></ul><ul><ul><li>Lighting (ancillary) energy - required to light and ventilate the car </li></ul></ul><ul><li>  </li></ul> 07/06/10
  9. 9. Basics of Power Watts = Volts x Amps Watts = Newton x meters/sec ( Power = Force x Speed) 07/06/10
  10. 10. Basics of Energy Watt-sec = Watts x sec Watts-sec = Newton x meter (Energy = Force x Distance) (Energy = Power x Time) 07/06/10
  11. 11. Basics of Energy 07/06/10 <ul><ul><li>To use Watt-hrs and not newtons here are useful formulas </li></ul></ul><ul><ul><ul><li>W-hrs = kg-meters/ 367.1 </li></ul></ul></ul><ul><ul><ul><li>W-hrs = ft-lbs/2655 </li></ul></ul></ul>
  12. 12. Hoisting Energy Flow Drive loss Motor loss Hoistway loss Regeneration Basics of Actual Efficiency 07/06/10 Drive loss Motor loss Hoistway loss At Line At Payload Motoring
  13. 13. Hoisting Energy Flow Energy out Energy in 100 100 Basics of 100% Efficiency 07/06/10 Ideal Energy At Line At Payload Motoring Regeneration
  14. 14. Hoisting Energy Flow Basics of Efficiency 07/06/10
  15. 15. Review of Segment 2 07/06/10 <ul><li>Energy may be thought of interchangeably as: </li></ul><ul><ul><li>Power x Time </li></ul></ul><ul><ul><li>Force x Distance </li></ul></ul><ul><li>Efficiency is a ratio of actual energy to ideal energy </li></ul><ul><ul><li>Ideal energy is a reference figure which is calculated based on zero energy losses </li></ul></ul><ul><ul><li>Actual energy must be measured. </li></ul></ul>Insert picture size 130 x 85mm 100dpi
  16. 16. Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x Time vs. Force x Distance 4. Practical application 5. Q&A 07/06/10
  17. 17. 07/06/10
  18. 18. 07/06/10
  19. 19. 07/06/10
  20. 20. 07/06/10 0 2 4 6 8 10 12 14 16 18 20 Force (kg) Distance (m) 0 -500 500 1000
  21. 21. 07/06/10 0 2 4 6 8 10 12 14 16 18 20 0 -500 500 1000 Force (kg) Distance (m)
  22. 22. 07/06/10 0 2 4 6 8 10 12 14 16 18 20 0 -500 500 1000 Force (kg) Distance (m)
  23. 23. A = Acceleration (m/sec 2 ) D = Travel Distance (meters) i = Imbalance (kilograms) J = Jerk (m/sec 3 ) M = Mass of the moving system, primarily the weight of the moving system …… divided by the acceleration of gravity plus the rotating mass V = Velocity (m/sec). It is the lesser of 1.) Rated speed or 2.) Maximum speed possible within the travel distance, which is: 07/06/10
  24. 24. Review of Segment 3 07/06/10 Confidential | © KONE Corporation | Presentation name | Author <ul><li>Elevator motion may be described interchangeably as a function of </li></ul><ul><ul><li>Time </li></ul></ul><ul><ul><li>Distance </li></ul></ul><ul><li>Energy is the area under the curve of either </li></ul><ul><ul><li>Power vs. Time </li></ul></ul><ul><ul><li>Force vs. Distance </li></ul></ul><ul><li>Equations for determining ideal energy using force x distance have been provided which can be used for any duty or loading condition </li></ul>
  25. 25. Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x Time vs. Force x Distance 4. Practical application 5. Q&A 07/06/10
  26. 26. Hoisting Energy Flow 07/06/10
  27. 27. The weighted averages for energy per elevator start in this example: Load = 7.7% of capacity Travel = 50.1% of total travel 07/06/10
  28. 28. Review of Segment 4 07/06/10 <ul><li>It is possible to calculate the energy requirement for any particular elevator loading, distance and system efficiency </li></ul><ul><li>By utilizing a traffic simulation program, the weighted average loading and distance may be calculated which then can be used to determine the average energy per elevator start. </li></ul><ul><li>Multiplying the weighted average energy figure by the starts per year gives a projection of annual hoisting energy consumption. </li></ul><ul><li>Adding standby energy and lighting to this gives total elevator energy consumption. </li></ul>
  29. 29. Contents / Agenda IAEC Forum May 15, 2010 1. Introduction & Purpose 2. Basics of Power, Energy and Efficiency 3. Power x Time vs. Force x Distance 4. Practical application 5. Q&A 07/06/10
  30. 30. Questions?

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