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ThyssenKrupp Elevator Southern Europe, Africa & Middle East

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HOW LIFTS ACTUALLY CONSUMES POWER & HOW LIFTS ACTUALLY CONSUMES POWER & HOW TO REDUCE CONSUMPTIONHOW TO REDUCE CONSUMPTION

Rory Smith, Operations Director, THYSSENKRUPP THYSSENKRUPP ELEVATOR ELEVATOR


How Lifts Actually Consume Powerand How to Reduce Consumption

Dr. Rory Smith


Energy Research


Energy Research

Findings:

Lifts don’t use energy

They borrow it


Basic principles of energy transfer


… in an ideal world

Lift going up



0.1 kWh taken from the system



Lift going back down



0.1 kWh put back into the system


… in the real world

Lift going up



Heat generated by the lift motor



noise is also generated



0.12 kWh taken from the system



Lift going back down



There is an overall loss of 0.4 kWh

0.8 kWh put back into the system


Findings:

Lifts don’t use energy

They borrow it

Lifts pay interest

Losses

Energy Research


Energy Simulator


6 No. 1600 kg elevators @ 2.50 m/sAverage of all runs Passenger Demand

Total Up/Down Traffic - solid green/red line above/below

00:00 02:00 04:00 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:000

25

50

75

pe

rso

ns

pe

r 5

min

ute

s

0

1

2

3

4

5

6

7

8

% p

op

ula

tion

pe

r fiv

e m

inu

tes

0

25

50

75

0

1

2

3

4

5

6

7

8


Standby Power

Average of all runs Electical Loadin 5 minute periods Average - solid line, Maximum - dotted line

00:00 02:00 04:00 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:00

time (hrs:min)

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80kW


6 No. 1600 kg elevators @ 2.50 m/sRun no: 1 Energy Consumption

Cumulative

00:00 02:00 04:00 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:00

time (hrs:min)Total Energy Consumption 401.12038 kWhTotal Cost AED160.45

0

25

50

75

100

125

150

175

200

225

250

275

300

325

350

375

400

425

450

475

500kW

h

Regenerative Drive

AED 160.45



Cumulative

00:00 02:00 04:00 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:00


0

50

100

150

200

250

300

350

400

450

500

550

600

650

700

750

800

850

900

950

1000kW

h

Non-Regenerative Drive

AED 211.19



Cumulative

00:00 02:00 04:00 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:00


0

50

100

150

200

250

300

350

400

450

500

550

600

650

700

750

800

850

900

950

1000

kWh

Non-Regenerative Drive

AED 211.19-160.45=50.54

Air conditioning +20.3070.84


VDI 4707


Energy Saving Dispatching

Connectes to Building Management System


100 cm100 cm

Machine Type

Geared PM Gearless


Cab Lighting

Use LED’sSwitch it off


Energy Saver

Switch off lifts when not needed


Saving Energy

Regenerative DrivesGearless MachinesVDI 4707 Class A

Energy Saving DispatchLED Lighting

Switch off cab lights when not neededSwitch off lifts when not needed


How Elevators Actually Consume Powerand How to Reduce Consumption

Dr. Rory Smith

innovation podium

Documents

ideal worldlift

real worldlift

real worldthere

lifts dont use energythey

sessionhow lifts

nonregenerative driveaed

peakup peak

kwh findings