Sem The Electric Counterwheight

The electric counterbalance How to minimize the electric consumptions and the cater Ing. Sebastiano Acquaviva - ENCOSYS s.r.l. (Torino-Italy) base It is some time that the discussion ab push through what is the beat out technology for the elevators is open. An essential parameter for this affinity is the energy consumption, or rather the two factors that determine it: the power and the energy. Another all-important(a) parameter for the choice is the speed of the car. set type| hydraulic| Geared| Gearless| Speed| (m/s)| 0.63| 1.0| 1.0| Load| (kg)| 630| 630| 630| go size| (kW)| 11| 5.6| 4| Plant efficiency| %| 60| 65| 80| Counterwheight| | No| Si| Si| Tab. 1 - Plant typology compare Table 1 shows a direct comparison between different types of elevator in accordance with the reliable technology. A first analysis tends to indicate that the gearless technology is the best one.  only if a closer inspection shows that the difference is driven by two paramete rs: the overall efficiency and the counter fish. Figure 1: automobile speed in a basic cycle t td ta td tr td ta td tr td ta T tc The share of the efficiency on the energy is evident for any plants.

In the case of the geared or gearless elevator the difference of the arousal power is only due to the gearbox efficiency that fasten the overall result. The forepart of the counterweight plays an important rule on the motor size and on the power necessary for the beseeming operation, as well as on the speed. Since the power indispensable is effrontery by the weight rais ed times the pilgrimage speed, the presence! of the counterweight allows to increase the car speed be with comparatively low power. Because The hydraulic elevator, for a correct functioning, needfully to exit with a high oil pressure, to equip the counterweight for this elevator typology is not convenient. Moreover, only a reduced billet of the weight can be balanced from the counterweight, then...If you want to set frontward a full essay, order it on our website: OrderCustomPaper.com

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