Stepwise derivation and verification of a universal elevator round trip time formula for general traffic conditions

L Al-Sharif, AM Abu Alqumsan - … Engineering Research and …, 2015 - journals.sagepub.com
The evaluation of the round trip time (τ) still forms the basis for the design of elevator traffic
systems. The elevator round trip time is the time taken for the elevator to complete a full cycle …

Non-Contact and Non-Intrusive Add-on IoT Device for Wireless Remote Elevator Control

E Rubies, R Bitriá, E Clotet, J Palacín - Applied Sciences, 2023 - mdpi.com
This work proposes an Internet-of-Things (IoT) device for remote elevator control. The new
contribution of this proposal to the state-of-the-art is that it can convert a manually operated …

The current practice of lift traffic design using calculation and simulation

L Al-Sharif, MD Al-Adem - Building Services Engineering …, 2014 - journals.sagepub.com
Lift traffic design can employ calculation or simulation methods. Calculation can be split into
main categories: analytical equation-based methods and numerical methods. Simulation …

[PDF][PDF] Evaluating the elevator passenger average travelling time under incoming traffic conditions using analytical formulae and the Monte Carlo method

L Al-Sharif, OF Abdel Aal, AM Abu Alqumsan - Elevator World, 2013 - researchgate.net
Monte Carlo simulation can be used to evaluate the output value for problems that have a
number of random inputs, whereby the probability density functions of the input random …

Establishing the upper performance limit of destination elevator group control using idealised optimal benchmarks

L Al-Sharif, J Hamdan, M Hussein… - Building Services …, 2015 - journals.sagepub.com
The concept of an idealised optimal benchmark (IOB) is used in many engineering
disciplines. An example of an IOB from the area of thermodynamics is the formula for …

Exploring role of Eco-friendly elevators in literature

N Zrnić, A Dragović, N Kosanić - Industrija, 2023 - aseestant.ceon.rs
This study is exploring the role of Eco-friendly elevators in literature based on an analysis of
113 papers published in scholarly journals drawn from the Scopus database. This is the first …

An integrated framework for elevator traffic design under general traffic conditions using origin destination matrices, virtual interval, and the Monte Carlo simulation …

L Al-Sharif, AM Abu Alqumsan - … Engineering Research and …, 2015 - journals.sagepub.com
The conventional design methodology for elevator traffic analysis has been applied to the
case of up-peak traffic (or incoming traffic conditions). The only user requirements are …

The HARint Space: A methodology for compliant elevator traffic designs

L Al-Sharif, OF Abdel Aal… - Building Services …, 2015 - journals.sagepub.com
A previous paper introduced the concept of the HARint plane, which is a tool to visualise the
optimality of an elevator design. This paper extends the concept of the HARint plane to the …

Evaluating the elevator round trip time for multiple entrances and incoming traffic conditions using Markov chain Monte Carlo

L Al-Sharif, AT Hammoudeh - International Journal of …, 2014 - inderscienceonline.com
The round trip time is the basis for designing elevator systems. There are a number of
different methods for calculating the round trip time, whether analytical or numerical. As the …

Rule-based calculation and simulation design of elevator traffic systems for high-rise office buildings

L Al-Sharif, G Al Sukkar, A Hakouz… - Building Services …, 2017 - journals.sagepub.com
Elevator traffic system design has been traditionally based on rules of thumb and the
designer's judgement and expertise. This is especially true for high-rise buildings. This …