Evaluation System for Energy Consumption and Productivity in Manufacturing System Simulation

Abstract

Industries need to design and improve their manufacturing systems while considering energy consumption and productivity concurrently. Manufacturing system simulation is often used to evaluate productivity when manufacturing systems are designed or improved. However, it is difficult to use simulation to evaluate energy consumption when designing and improving manufacturing systems. The purpose of our research is to establish a system for the concurrent evaluation of energy consumption and productivity in manufacturing system simulation. In this paper, first, requirements for a simulation to evaluate energy consumption and productivity are analyzed. Second, an evaluation system is proposed in consideration of the requirements. A Unified Modeling Language (UML) model that defines facility state transitions and relationships between the facility state and energy consumption is proposed. A manufacturing system simulation implemented in the proposed UML model is also proposed and developed. The proposed simulation is also implemented in a function to concurrently generate information on production throughput and energy consumption along a time progression. A system that provides a function to visually evaluate dynamic changes in the energy consumption per unit of production throughput along a time progression is also proposed and developed. Finally, a case study for semiconductor manufacturing systems is carried out to confirm the efficiency of our proposed evaluation system.

A study on lot-size dependence of the energy consumption per unit of production throughput concerning variable lot-size

“…The simulation method simultaneously obtains the pre-evaluation of productivity and energy consumption by using the organization of required items and functionality (Sakuma et al, 2013) (Hibino et al, 2012). More specifically, as shown in Fig.…”

“…energy consumption, previous studies have presented approaches for reducing the energy consumption per unit of production throughput that focus on either the machine level (Heilala et al, 2008) (Ghandimi et al, 2014) (Weinnert et al, 2014) (Langer et al, 2014) (Frigerio et al, 2014) (Frigerio et al, 2015) or the line level (Murayama et al, 2005) (Sakuma et al, 2013) (Hibino et al, 2012) (Schultz et al, 2015) (Li et al, 2012) (Beier et al, 2017) (Herrmann et al, 2011) . Line-level approaches can focus on line designs, such as the number of facilities, buffer capacity, and processing time, while evaluating the energy consumption.…”

Evaluation of Energy Efficiency and Productivity in Scheduling by Using Physical Simulator

“…Energy awareness has been also taking into account in some manufacturing system simulations. Hibino et al [15] proposed a computational simulation system to evaluate the energy consumption and productivity. They demonstrated the efficiency of their evaluation system by applying it to semiconductor manufacturing systems.…”

Simulation of Energy and Media Demand of Beverage Bottling Plants by Automatic Model Generation

“…The material efficiency requires knowledge of the previous production processes. With the help of a simulation, which is also mentioned as a tool for optimization in the course of the digital factory [9,10], the energy efficiency can be improved [11]. The simulation is primarily used for the holistic analysis of complex production systems and is suitable for uncovering the optimization potential without interrupting the ongoing production [12,13].…”