Improved Energy Efficiency in the Aluminium Industry and Its Supply Chains.

• Superior document: Linköping Studies in Science and Technology. Dissertations Series ; v.2063
• Author: Haraldsson, Joakim.
• Place / Publishing House: Linköping : : Linkopings Universitet,, 2020.; {copy}2020.
• Year of Publication: 2020
• Edition: 1st ed.
• Language: English
• Series: Linköping Studies in Science and Technology. Dissertations Series
• Physical Description: 1 online resource (148 pages)

Table of Contents

• Intro
• Abstract
• Sammanfattning
• Appended papers
• Other publications not included in the thesis
• Acknowledgements
• Abbreviations
• Table of contents
• 1 Introduction
• 1.1 Motivation for research
• 1.2 Aim and research questions
• 1.3 Scope and delimitations
• 1.4 Paper overview and co-author statement
• 1.5 Other papers not included in the thesis
• 1.6 Research journey
• 2 Aluminium industry and aluminium casting foundries
• 2.1 Production processes
• 2.1.1 Electrolysis and alloying
• 2.1.2 Recycling and alloying
• 2.1.3 Generation of skimmings, dross and salt slag
• 2.1.4 Casting
• 2.1.5 Profile extrusion
• 2.1.6 Rolling
• 2.1.7 Heat treatment
• 2.1.8 Anodic oxidation (anodising)
• 2.1.9 Energy use
• 2.2 The Swedish aluminium industry and aluminium casting foundries
• 3 Concepts and definitions
• 3.1 Energy efficiency improvement and energy saving
• 3.2 Supply chains
• 3.3 Primary energy factor
• 3.4 Assessment of GHG emissions
• 4 Previous research
• 4.1 Improved energy efficiency in the aluminium industry
• 4.2 Supply chains in relation to improved energy efficiency and reduced environmental impact
• 4.3 The impact of energy efficiency measures on primary energy use, GHG emissions, and energy and CO2 costs
• 4.4 Barriers, drivers and information sources
• 5 Description of system levels and cases
• 5.1 System levels
• 5.2 Cases studied
• 6 Methods and approaches
• 6.1 Research design
• 6.2 Literature review
• 6.3 Calculation of the effects of energy efficiency measures on primary energy use, GHG emissions and related costs
• 6.3.1 General assumptions
• 6.3.2 The energy efficiency measures studied
• 6.3.3 Choice of electricity
• 6.3.4 Calculation of effects on primary energy use, GHG emissions, and energy and CO2 costs
• 6.4 Focus groups
• 6.5 Questionnaires
• 6.5.1 Questionnaire 1.
• 6.5.2 Questionnaire 2
• 7 Results and analysis
• 7.1 Existence of energy efficiency gap and changes in priority of energy issues
• 7.2 Improved energy efficiency within the individual companies
• 7.2.1 Energy efficiency measures found in literature
• 7.2.2 Effects on primary energy use, GHG emissions, and related costs from improved energy efficiency in the electrolysis process
• 7.2.3 Degree of implementation of energy efficiency measures
• 7.2.4 Energy saving potentials for the companies
• 7.3 Improved energy efficiency in the entire supply chains
• 7.3.1 Energy efficiency measures for supply chains
• 7.3.2 Energy efficiency improvement potentials for supply chains
• 7.4 Factors hindering or driving improved energy efficiency
• 8 Discussion
• 8.1 Energy efficiency measures
• 8.2 Energy efficiency improvement and energy saving potentials
• 8.3 Factors affecting the work to improve energy efficiency
• 8.4 Achieving carbon neutrality in the production and processing of aluminium
• 8.5 Generalisability of the results
• 8.6 Relevant recipients of the results
• 9 Conclusions
• 9.1 Research question 1
• 9.2 Research question 2
• 10 Further work
• References
• Appendix A: Energy efficiency measures included in the first questionnaire
• Appendix B: Energy efficiency measures identified in literature
• Appendix C: Ratings of barriers and drivers.