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) creative activity It is some time that the discussion ab onwards what is the beat out technology for the raisings 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 principal(prenominal) 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 comparing Table 1 shows a direct comparison among different types of elevator in accordance with the reliable technology. A first analysis tends to indicate that the gearless technology is the best one.  exclusively a closer inspection shows that the difference is driv en by two parameters: the overall efficiency and the counter lean. Figure 1: railcar speed in a basic cycle t td ta td tr td ta td tr td ta T tc The vocalism of the efficiency on the energy is evident for any plants.

In the case of the geared or gearless elevator the difference of the foreplay power is only due to the gearbox efficiency that deoxidise the overall result. The front 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 presumpt ion by the weight raised times the pilgrima! ge 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 cypher 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 forth a full essay, order it on our website: OrderCustomPaper.com

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