{"id":{"repo_id":"aachen","oai_identifier":"oai:publications.rwth-aachen.de:52846"},"canonical_url":"https://search.dev.ndltd.org/etd/aachen/oai:publications.rwth-aachen.de:52846","repository":{"repo_id":"aachen","name":"RWTH Aachen University","base_url":"https://publications.rwth-aachen.de/oai2d"},"display":{"title":"Optimierung der Energienutzung bei der Aluminiumherstellung","abstract":"Analysing the sustainability of the aluminium industry, energy input is an important indicator. Besides the use of energy resources, energy consumption has a negative impact on the ecology, e.g., emissions caused by energy conversion, as well as economic effects due to energy costs. In this paper, options for reducing the energy use during aluminium production are being analysed. Subsequently, different methods for rating the quality of energy are being applied. In order to calculate scenarios concerning potential energy reduction for the entire process, each stage was examined and analysed separately. Because of their relevance to the consumption of energy, the calculations focus on primary production, excluding bauxite production and all transports in general, on electricity supply for the electrolysis and on the recycling of aluminium in light weight packaging, to cite just one example of secondary production. Applying the best available technology in each stage of aluminium production, the specific primary energy demand can be reduced by some 20%. Different types of power plants using different energy carriers yield enormous differences in efficiency. Therefore, the variation of electricity supply for aluminium electrolysis can lead to even higher savings. Balancing only inputs of electricity and fossil fuels raising the recycling quota up to 85% is reasonable from the energy point of view. Considering material-bound energy contents, e.g., by organic ingredients results in an optimal quota of 70%. But even in this case, the primary energy demand of the total production is reduced by 28% compared to the current state of affairs, whereby the recycling quota lies at a mere 59%.","abstract_html":"Analysing the sustainability of the aluminium industry, energy input is an important indicator. Besides the use of energy resources, energy consumption has a negative impact on the ecology, e.g., emissions caused by energy conversion, as well as economic effects due to energy costs. In this paper, options for reducing the energy use during aluminium production are being analysed. Subsequently, different methods for rating the quality of energy are being applied. In order to calculate scenarios concerning potential energy reduction for the entire process, each stage was examined and analysed separately. Because of their relevance to the consumption of energy, the calculations focus on primary production, excluding bauxite production and all transports in general, on electricity supply for the electrolysis and on the recycling of aluminium in light weight packaging, to cite just one example of secondary production. Applying the best available technology in each stage of aluminium production, the specific primary energy demand can be reduced by some 20%. Different types of power plants using different energy carriers yield enormous differences in efficiency. Therefore, the variation of electricity supply for aluminium electrolysis can lead to even higher savings. Balancing only inputs of electricity and fossil fuels raising the recycling quota up to 85% is reasonable from the energy point of view. Considering material-bound energy contents, e.g., by organic ingredients results in an optimal quota of 70%. But even in this case, the primary energy demand of the total production is reduced by 28% compared to the current state of affairs, whereby the recycling quota lies at a mere 59%.","abstract_has_math":false,"creators":["Quinkertz, Rainer"],"institution":"Publikationsserver der RWTH Aachen University","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Kugeler, Kurt"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2002,"date_issued":"2002","date_published":"2002","updated_at":"2026-07-30T19:41:00Z","subjects":["info:eu-repo/classification/ddc/660","Technische Chemie"],"languages":["ger"],"rights":["info:eu-repo/semantics/openAccess"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-115040%22"],"render_values":[{"text":"https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-115040%22","href":"https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-115040%22","code":true}]}]},"links":{"outbound_url":"https://publications.rwth-aachen.de/record/52846","outbound_label":"Repository record","outbound_source":"dc:identifier"},"source_record":{"url":"https://publications.rwth-aachen.de/oai2d?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Apublications.rwth-aachen.de%3A52846","prefix":"oai_dc"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Kugeler, Kurt"]},{"key":"dc:creator","label":"Author","values":["Quinkertz, Rainer"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:coverage","label":"Dc Coverage","values":["DE"]},{"key":"dc:date","label":"Dc Date","values":["2002"]},{"key":"dc:publisher","label":"Institution","values":["Publikationsserver der RWTH Aachen University"]},{"key":"dc:relation","label":"Dc Relation","values":["info:eu-repo/semantics/altIdentifier/urn/urn:nbn:de:hbz:82-opus-3791"]},{"key":"dc:type","label":"Dc Type","values":["info:eu-repo/semantics/doctoralThesis","info:eu-repo/semantics/publishedVersion"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["info:eu-repo/classification/ddc/660","Technische Chemie"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["ger"]},{"key":"dc:rights","label":"Dc Rights","values":["info:eu-repo/semantics/openAccess"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://publications.rwth-aachen.de/record/52846","https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-115040%22"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Analysing the sustainability of the aluminium industry, energy input is an important indicator. Besides the use of energy resources, energy consumption has a negative impact on the ecology, e.g., emissions caused by energy conversion, as well as economic effects due to energy costs. In this paper, options for reducing the energy use during aluminium production are being analysed. Subsequently, different methods for rating the quality of energy are being applied. In order to calculate scenarios concerning potential energy reduction for the entire process, each stage was examined and analysed separately. Because of their relevance to the consumption of energy, the calculations focus on primary production, excluding bauxite production and all transports in general, on electricity supply for the electrolysis and on the recycling of aluminium in light weight packaging, to cite just one example of secondary production. Applying the best available technology in each stage of aluminium production, the specific primary energy demand can be reduced by some 20%. Different types of power plants using different energy carriers yield enormous differences in efficiency. Therefore, the variation of electricity supply for aluminium electrolysis can lead to even higher savings. Balancing only inputs of electricity and fossil fuels raising the recycling quota up to 85% is reasonable from the energy point of view. Considering material-bound energy contents, e.g., by organic ingredients results in an optimal quota of 70%. But even in this case, the primary energy demand of the total production is reduced by 28% compared to the current state of affairs, whereby the recycling quota lies at a mere 59%."]},{"key":"dc:source","label":"Dc Source","values":["Aachen : Publikationsserver der RWTH Aachen University XIV, 106 S. : graph. Darst. (2002). = Aachen, Techn. Hochsch., Diss., 2002"]},{"key":"dc:title","label":"Title","values":["Optimierung der Energienutzung bei der Aluminiumherstellung"]}]}],"canonical_facts":{"dc:contributor":["Kugeler, Kurt"],"dc:coverage":["DE"],"dc:creator":["Quinkertz, Rainer"],"dc:date":["2002"],"dc:description":["Analysing the sustainability of the aluminium industry, energy input is an important indicator. Besides the use of energy resources, energy consumption has a negative impact on the ecology, e.g., emissions caused by energy conversion, as well as economic effects due to energy costs. In this paper, options for reducing the energy use during aluminium production are being analysed. Subsequently, different methods for rating the quality of energy are being applied. In order to calculate scenarios concerning potential energy reduction for the entire process, each stage was examined and analysed separately. Because of their relevance to the consumption of energy, the calculations focus on primary production, excluding bauxite production and all transports in general, on electricity supply for the electrolysis and on the recycling of aluminium in light weight packaging, to cite just one example of secondary production. Applying the best available technology in each stage of aluminium production, the specific primary energy demand can be reduced by some 20%. Different types of power plants using different energy carriers yield enormous differences in efficiency. Therefore, the variation of electricity supply for aluminium electrolysis can lead to even higher savings. Balancing only inputs of electricity and fossil fuels raising the recycling quota up to 85% is reasonable from the energy point of view. Considering material-bound energy contents, e.g., by organic ingredients results in an optimal quota of 70%. 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