Explicit method to predict annual elevator energy consumption in recurring passenger traffic conditions

Abstract

This paper proposes a method for simple projecting of annual elevator electricity consumption based on short-term energy measurements and identifies challenges in the determination of actual energy consumption based on kWh meter readings. The study also analyzes the impact of the employed elevator technology, building type, and seasonal variations in elevator usage on the calculation of the annual consumption. Thus, the method can be adopted in different regions with varying elevator usage. The approach employs elevator specific daily energy consumption measured on the prevailing day types. The reliability of the proposed approach was analyzed and the performance compared to actual measured annual consumption and estimates provided by commonly adopted energy efficiency classification schemes, VDI 4707-1:2009 and ISO 25745-2:2015. The results of the monitored office elevator indicated that the proposed method performs generally better than the competing approaches.

Predicting the annual escalator energy consumption based on short-term measurements

“…This article introduces an approach to annual energy consumption calculation in an example of an escalator, where the prediction is ultimately compared to the measured energy consumption. The eligibility of employing the method with other appliances is supported by previous research, where we showed that other appliances in the same building segment had a similar traffic profile [7], or that buildings in another segment had a recurring passenger traffic [8].…”

“…In our previous article [8], a method for estimating annual energy consumption of elevators was proposed based on short-term energy measurements in an example of an office building. The idea behind this method is based on the conformity of the weekly energy consumption of vertical transportation systems.…”

“…In our article about elevator energy consumption prediction [8], a method for energy consumption estimation based on short-term energy measurements proved to be an upright way to get a trustworthy value of the annual elevator energy consumption. This article adopts the method for escalator technology, aiming to provide a reliable alternative to the existing standard estimation method presented in the ISO 25745-3 standard labeled Energy performance of lifts, escalators and moving walks -Part 3: energy calculation and classification of escalators and moving walkways [4].…”

“…The target of this study is to raise awareness about energy efficiency and optimization of energy consumption in escalators further by introducing a method that obtains annual energy consumption estimates through short-term measurements. Our previous study [8] revealed that office elevators tend to have relatively constant weekly consumption profile throughout the year. Measuring the consumption pattern during a normal working week resulted in a reasonably accurate estimate of annual energy consumption.…”

Application of fuzzy logic in lift energy efficiency classification

“…In publications (Anand and Mahesh authors point out the benefits of using the newest solutions. Issues related to energy efficiency of lifting devices were also raised by authors (Al-Sharif 2004;Almeida et al 2012;Barney 2013;Doolaard 1992;Lorente et al 2010;Nipkow and Schalcher 2005;Schroeder 1980, 1988, Tukia et al 2016a.…”