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Energisparläge i automationsindustrin: Potential för att minska tomgångsförluster med industriella styrsystem
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
2014 (Swedish)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Former studies have shown that a considerable part of industries’ energy usage can stem from idle times in the production. This thesis, carried out at Siemens Industry sector, evaluates the potential for using the control system to automatically put machines into energy saving mode during idle times. The main part of the thesis consists of a case study performed on machine tools at a Scania production site in Södertälje. Through load measurements the potential for energy savings was determined.

The results show that there is a great potential for energy savings during idle times at the site. 20 to 50 percent of the machines’ energy usage can be reduced if they are put into energy saving mode when they are not used. However, the implementation of pause management in an existing control system is often too expensive to be motivated alone. Instead this should be considered before overhauls or rebuilds of machines and production sites. Another way of reducing costs can be to use a standard for pause management like PROFIenergy.

A general conclusion is that industries with discrete manufacturing and long pause times have a great potential for energy savings. The same holds for machines with position control, such as robots and machine tools. The thesis also highlights the need for proper energy measurements at a production site in order to evaluate the potential for and results of an energy efficiency measure.

Place, publisher, year, edition, pages
2014. , 43 p.
Series
UPTEC ES, ISSN 1650-8300 ; 14020
Keyword [sv]
energieffektivisering, tomgångsförluster, CNC, elmätning, energianalys, profienergy
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:uu:diva-226949OAI: oai:DiVA.org:uu-226949DiVA: diva2:727907
Educational program
Master Programme in Energy Systems Engineering
Supervisors
Examiners
Available from: 2014-07-02 Created: 2014-06-23 Last updated: 2014-07-02Bibliographically approved

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Examensarbete Tomas Löfwall(2577 kB)220 downloads
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CiteExportLink to record
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Citation style
  • apa
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