WP6-Brochure-E4 brochure - ELA European Lift Association.

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It is important to notice that the usage pattern has an important influence in the relation between the standby power and running mode energy consumption of lifts. The higher the number of trips per year, the higher the contribution of the running mode consumption to the overall energy consumption of the installation. The next figure illustrates the various states of operation of an escalator equipped with a variable speed drive. Figure 5‐18. Active power of an escalator in different operation modes Typically, three modes of operation are provided by variable speed escalators. After a predefined period of inactivity, escalators reduce their speed and reach the so called “reduced‐speed” mode. The consumption in this “reduced‐speed” mode is more or less half the consumption in the normal operation mode. After reaching this mode of operation, and after another predefined interval of time, the escalator is put into a STOP mode. At this STOP mode, only the control system and the passenger detection system (pressure mats, photocells or infra‐red beams) are kept running. When a passenger is detected, the escalator slowly begins to move again, gently accelerating until it reaches nominal speed. According to the developed methodology, the standby consumption is considered to be the summation of the low‐speed mode consumption and the stop mode consumption. Figure 5‐19 shows the estimated annual electricity consumption of the escalators monitored. 74
Figure 5‐19. Annual electricity consumption of the monitored escalators 5.3 References [1] DRAFT INTERNATIONAL STANDARD ISO/DIS 25745‐1 “Energy Performance of Lifts and Escalators – Part 1: Energy Measurement and conformance”, 2008 [2] EN 60359:2002 “Electrical and electronic measurement equipment ‐ Expression of the performance”, 2002 [3] Nipkow, J. “Elekrizitaetsverbrauch und Einspar‐Potenziale bei Aufzuegen, Schlussbericht November 2005“, Im Auftrag des Bundesamtes fuer Energie [4] Lindegger ,Urs: “Energy estimation: Document for E4, ELA, VDI & ISO”, 11 June 2008 [5] Gharibaan, Esfandiar: “Load Factor for Escalators”, EG, May 2008 75
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E4 ENERGY EFFICIENT ELEVATORS AND E
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Contents 1 Introduction ...........
Page 5 and 6:
1 Introduction Means of vertical tr
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2 Lift and Escalator Technologies T
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Figure 2‐3. Configuration of Gear
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Some manufacturers have gone even f
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• Conventional hydraulic units do
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[2] Sachs, H., “Opportunities for
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High efficiency motors are typicall
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Figure 3‐3. Effect of load on pow
Page 21 and 22:
If the linear motor is mounted on t
Page 23 and 24: 3 Phase AC input 50 Hz AC/DC Conver
Page 25 and 26: preventing the car from falling. Ty
Page 27 and 28: Figure 3‐14. Regenerative operati
Page 29 and 30: occupied by lift support systems. A
Page 31 and 32: Figure 3‐19. Possible configurati
Page 33 and 34: After the introduction of relay log
Page 35 and 36: It is evident that the way lifts ar
Page 37 and 38: When combined with hall call contro
Page 39 and 40: of the torque of the 1:1 roping sch
Page 41 and 42: times as quickly as a 720 mm sheave
Page 43 and 44: LEDs are also a very efficient solu
Page 45 and 46: • Car electronics • Light curta
Page 47 and 48: The major cause of energy consumpti
Page 49 and 50: 3.9 Efficient Escalators and Moving
Page 51 and 52: These bearings feature optimised in
Page 53 and 54: 4 Market Characterisation As part o
Page 55 and 56: Figure 4‐2. Lift Distribution acc
Page 57 and 58: The next three figures show the lif
Page 59 and 60: 5 Results of the Monitoring Campaig
Page 61 and 62: the lift, but does not include addi
Page 63 and 64: Where, E standby Standby Energy use
Page 65 and 66: Figure 5‐4 shows a typical cycle
Page 67 and 68: Figure 5‐6. Travel cycle consumpt
Page 69 and 70: Figure 5‐9. Measured standby powe
Page 71 and 72: Figure 5‐12. Annual Energy consum
Page 73: Figure 5‐16. Annual Energy consum
Page 77 and 78: 6.1.1 Determination of the average
Page 79 and 80: Where, P mech E cycle η system h v
Page 81 and 82: 6.2. Electricity consumption of lif
Page 83 and 84: 6.3. Estimation of potential saving
Page 85 and 86: The results show that overall savin
Page 87 and 88: 6.5. Estimation of Savings Potentia
Page 89 and 90: Identification of stakeholders and
Page 91 and 92: Table 7‐1. Categories of stakehol
Page 93 and 94: esults were presented and discussed
Page 95 and 96: We also asked which stakeholder inf
Page 97 and 98: not rate an item. Reasons for non
Page 99 and 100: Further barriers We asked responden
Page 101 and 102: Raising awareness Setting a standar
Page 103 and 104: Further topics This section address
Page 105 and 106: The scope of the present study is o
Page 107 and 108: Table 7‐4. Energy efficiency: Spe
Page 109 and 110: 10 Check system architecture Ropes
Page 111 and 112: 17 Avoid stalled motor door operato
Page 113 and 114: 24 Switch off other lift components
Page 115 and 116: passenger arrives. However, an addi
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