State of the Art of Calculation Methods for Elevator Energy Consumption

摘要

Demand for Energy Efficient Lifts is increasing boosted by European regulations such as the Directive 2002/91/EC on the energy performance of buildings, the Directive 2005/32/EC on the eco-design of Energy-using Products (EuP), other initiatives at international level for building classification systems such as BREEAM, LEEDS and CASBEE, and other voluntary standardisation efforts such as ISO/DIS 25745 and VDI 4707. In some cases these proposals lead to initiatives for classification of the elevators by means of energy labels. Market and other social forces are also responsible for this renewed interest on energy efficiency. Reliable methods to assess total energy consumption of an elevator must be developed as a primary tool to evaluate global energy efficiency. Different methods have been proposed over the years and in recent times new ones have been included in standardization projects. This paper gathers some of these methods and introduces a new methodology for the estimation of energy consumption which combines measured, calculated or estimated data with simple mathematics allowing the user to obtain a more precise estimation. These methods are compared using a reference case and some conclusions will be drawn from this analysis.