Elevators are one of the electrical consumptions present in buildings. Its consumption depends fundamentally on the following factors:
Main use of the building: residential, hospital, administrative... Characteristics of the building: height, number of units of use... Type of elevator technology .
The use of the building affects according to the frequency of use of the elevators by users. Thus, for example, in a hospital where there are admitted patients, there will be a greater transfer of users than in buildings of other uses.
It is important that an estimate of the frequency of use of the elevators of the building is made when making a correct estimate of their energy consumption.
On the other hand , the characteristics of the building also affect its consumption in an important way, so in high-rise buildings its consumption will be more significant since a smaller number of users will use the stairs and the consumption per trip will be higher.
As for its technology , the following types of elevators are distinguished:
Hydraulic lifts. Two-speed electric elevators. Electric elevators with variable frequency and voltage. Electric elevators with variable frequency and voltage, without gears with permanent magnet motor and flat belts of high resistance, that is, elevators of last generation and high energy efficiency.This last type of elevators represent an important technological change in terms of low electricity consumption and energy efficiency:
They consume between 25% and 40% less than conventional electric elevators. They consume 60% less than hydraulic lifts. They are very quiet.
In the following table, a purchase of the consumption of a state-of-the-art elevator and a conventional two-speed electric elevator is made depending on its capacity:
It is worth considering all these factors when making a correct choice of the type of elevator to be used in a building.
FG_AUTHORS: Energy Efficiency Solutions
