ThyssenKrupp Elevator

Strategies for keeping people moving that won't cost the Earth

Mr. Dickon Purvis, Vice President Strategic Marketing & Business

Development

Mr. John Louie, Vice President Sales & Marketing

Hong Kong, October, 25th, 2012

Today’s topics

1. How to tailor the handling capacity of your elevator system for

peaks and troughs in demand, thereby minimizing energy

consumption and core space?

2. Machine and control solutions that reduce energy consumption of

your elevator system.

3. What do the energy efficiency ratings of Elevator & Escalator

systems actually mean?

4. Escalators running constantly on full power during times of light

passenger traffic waste unnecessary energy.

TWiN video

3

How to tailor the

handling capacity of

your elevator system

for peaks and

troughs in demand,

thereby minimizing

energy consumption

and core space?

4

➔ Two Cars ➔ One Shaft ➔ Moving Independently

TWIN ® – the lift technology revolution

5

6

1. Entrance Level

2. Entrance Level

Upper Zone

Lower Zone

Upper Zone

Lower Zone

Two cars moving in one shaft

independently

Cars using the same guide

rails and the same landing

doors

Minimum clearance between

both cars guaranteed by a

special four layer safety

concept

TWIN – the lift technology revolution

TWIN – the lift technology revolution

Fewer elevators shafts = Less

space for building core.

Reduction of lift shafts up to

50% possible!

More saleable / rentable area

Reduced building cost

Lower energy costs

2 Entrance Levels

➔ Initial design proposal in March 2008

➔ 171m, 40 story office building

➔ Initial lift requirement was 15 shafts including a double-deck solution split into low-rise and high-rise zones.

➔ Total 10 double-deck shafts (5 low & 5 high)

➔ Due for completion 2014

➔ Consultant: EGIS Battiments

➔ Architect: Attelier d´architecture Anthony Bechu/ Tom Sheehan

TWIN Case Study

Tour D2 (Paris, France)

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Original core layout

➔ Building core was originally designed for 15 passenger elevator shafts

Proposed an alternative solution using TWIN instead of double-deck

TWIN Case Study

Tour D2 (Paris, France)

Final core layout

➔ TWIN ended up saving 5 elevator shafts in total !

TWIN Case Study

Tour D2 (Paris, France)

Additional benefits

The transformer for TWIN could be made

smaller

Reduced cable sizes due to the smaller

currents involved

The need for a smaller emergency generator

to cope with much lower loads (app. 60%),

because the TWIN cabs can be moved

individually per shaft in case of evacuation.

Replacements parts are more cost effective

as TWIN uses ‘normal’ sized machines and

standard parts

TWIN allows smaller masses to be moved,

especially when traffic demand is low

resulting in substantial energy savings

Case Study

Tour D2, Paris, France

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TWIN Case Study

Tour D2 (Paris, France)

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4.0m/s, 5 shafts, 10 cabs

5.0m/s, 5 shafts, 10 cabs

2.5 & 4.0m/s, 5 shafts, 8 cabs

4.0 & 5.0m/s, 5 shafts, 7 cabs

0

20,000

40,000

60,000

80,000

100,000

120,000

Low-rise High-rise

kW

h

The elevators ran 9 hours a day, 250 day per year with 6hours of interfloor traffic per day. The “standby energy” consumption was based on 15 hours a day (365 days) and

115 days full day “standby” (no run). These 115 days are considered for weekends and holiday, when the office building will not be used.

Double-Deck Elevator compared with TWIN

➔ 62m, 17 storey office building

➔ Original design concept using conventional lifts would have required 13 lift shafts

➔ Completed in 2011

➔ Consultant: Grontmij / Adam J. Scott

➔ Architect: Fosters + Partner

TWIN Case Study

St. Botolph’s (London, UK)

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TWIN Case Study

St. Botolph’s (London, UK)

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Proposed alternative solution

8 pairs of TWIN lifts

Increase in lettable space as the core

size required could be reduced by 5

lift shafts. Approx. USD 500k per

annum

Additional benefit

TWIN allows one of the cabs in each pair

to be parked when traffic demand is low

resulting in extra energy savings

TWIN References Asia Pacific

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Raine Square (Perth,

Australia)

Bayshore Hotel (Dalian,

China)

Olympic Park Observation

Tower (Beijing, China)

Cheil Worldwide HQ (Seoul,

South Korea)

Entertainment & Media

Center (Seoul, South Korea)

Ajou University Hospital

(Suwon, South Korea)

Machine and control

solutions that reduce

energy consumption

of your elevator

system.

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The two main areas targeted for energy efficiency are

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Machine & drive controls

Elevator control system

Traction elevator operating principle

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Empty Car weight = 1,500

kg

Load capacity = 1,000 kg

Compensation chain or ropes

Counterweight = empty car

weight +1/2 load = 2,000 kg

Hoisting ropes

Traction

sheave

Technological developments in elevator hoist machines

& drive controls

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Hydraulic to traction

Geared to gearless

DC motors to AC motors

Asynchronous to permanent

magnet synchronous motors

Impact of development of Motor Drive Control Systems

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DC or AC asynchronous versus

permanent magnet

synchronous which can

improve efficiency between 30

– 50%.

Intelligent Elevator Control Systems

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Switching off components

when idle

Frequency inverter with

regenerative drive feed back

power to the building

Dynamic adaption of parking

level and door times

Grouping the same or similar

destinations

Reducing the travel time

Reducing the number of landing

stops per round trip

Save up to 30% of shaft space

22

Intelligent elevator control systems

Destination selection control

What do the energy

efficiency ratings of

Elevator & Escalator

systems actually

mean?

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VDI – Verein deutscher Ingenieure

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VDI 4707 is the basis for an

energy efficiency rating of

elevators accepted

internationally

7 designated energy efficiency

classes

3 separate energy demand

ratings

Escalators running

constantly on full

power during times

of light passenger

traffic waste

unnecessary energy.

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How to improve the power efficiency of the motor

during times of light load?

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GREEN BOX

A microprocessor and circuitry

that senses the energy

requirements of a motor.

At constant speed, it provides

the right amount of power to

meet the demands of any traffic

volume.

VVVF Creeping speed feature

Reduces the running speed to

creeping mode when no

passengers are on board

Benefit of the improvements

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By improving the power

efficiency of the drive motor it

is possible to obtain a

significant reduction in power

consumption, potentially 25 –

40%.

Summary

1. How to tailor the handling capacity of your elevator system for

peaks and troughs in demand, thereby minimizing energy

consumption and core space?

2. Machine and control solutions that reduce energy consumption of

your elevator system.

3. What do the energy efficiency ratings of Elevator & Escalator

systems actually mean?

4. Escalators running constantly on full power during times of light

passenger traffic waste unnecessary energy.

ThyssenKrupp Elevator

Thank you.