Development of Energy Saving Elevator Technology by Mitsubishi Electric
When it comes to energy saving only a few individual will ever think of Elevator system, but in fact operators of tall buildings and large facilities have shown strong interest in elevator system that can help in reduction in energy consumption. Most multi-elevator control system, however offer a trade-off between passenger convenience and energy saving feature, since manufacturer’s main concern in designing such system is in reducing passenger waiting time, which eventually can lead to increase in energy consumption by the elevator system. Based on this need, Mitsubishi Electric Corporation made an announcement on development of a new multi-elevator smart-control technology capable of reducing energy consumption by up to 10% in comparison to current elevator systems, helping building owners to cut energy consumption without sacrificing individual convenience.
Through use of this new elevator technology , when the user pushes an elevator button, the system selects the elevator that offers the best balance between operational efficiency and energy consumption. The selection method is based on each elevator’s potential energy consumption according to its current location and passenger load. Furthermore, the system predicts congestion levels throughout the day to maximize operational efficiency and minimize energy consumption. For instance, the system is set its priority on operational efficiency during peak usage in morning and evening rush hours and at lunch time and then it is able to switch its priority to energy efficiency during the non-peak hours, where in the later case, the average waiting time in a common office building will turns out to be no more than 1 to 1.6 seconds longer than the current average waiting of 20 seconds. The energy efficiency parameters can be easily selected manually, plus the elevators can be set to proceed non-stop to the lobby floor to accommodate large crowds. Mitsubishi electric will incorporate the new technology in its elevator system starting April of 2010.