Green Manufacturing: Simulation Of The Energy Consumption Of Conveyor Lines

Introduction  The energy consumption of conveyor lines depends on a number of control parameters.  By an appropriate selection of sensor positions and control logic for start and stop strategies it is possible to save a significant amount of energy costs and carbon dioxide. © 2009. Siemens Product Lifecycle Management Software Inc. All rights reserved Page 2 Siemens PLM Software

System Basics  Five sequenced belt conveyors  Each belt conveyor has a length of six meters  Each belt conveyor has a sensor at five meters  The sensors allow to start/stop the following belt conveyor  The dispatching of luggage is based on a uniform distribution in between 5 and „b“ seconds © 2009. Siemens Product Lifecycle Management Software Inc. All rights reserved Page 3 Siemens PLM Software

Belt Conveyor Characteristics Characteristic Value Length 6m Sensor position 5m Speedmax 2 m/s aAcceleration 4 m/s² aDeceleration 6 m/s² PIdle 0W PConstant load 1,5 kW PStart 7,5 kW for t=10 ms © 2009. Siemens Product Lifecycle Management Software Inc. All rights reserved Page 4 Siemens PLM Software

System Behavior  When a piece of luggage passes the sensor, the following belt conveyor starts  If no additional piece of luggage arrives after x seconds, then the belt conveyor is stopped  If x is very small, then this reduces the energy consumption of the constant load power but it increases the number of switching activities which leads to increased energy consumption by start power What’s the optimum for x in regards to throughput and energy consumption? © 2009. Siemens Product Lifecycle Management Software Inc. All rights reserved Page 5 Siemens PLM Software

Results Maximum throughput achieved by maximum velocity but throughput reduction of just 2% (from 872 to 855 parts/h) lead to energy reduction of 25% © 2009. Siemens Product Lifecycle Management Software Inc. All rights reserved Page 6 Siemens PLM Software

Green Manufacturing: Simulation Of The Energy Consumption Of Conveyor Lines

by Siemens PLM Software on Dec 14, 2009

Accessibility

Categories

Tags

Upload Details

Usage Rights

2 Embeds 78

Statistics

Green Manufacturing: Simulation Of The Energy Consumption Of Conveyor Lines — Presentation Transcript

http://siemens.pmhclients.com	71
http://www.slideshare.net	7