Es erfolgt ein ganzheitlicher Vergleich der Systeme Luftwärmepumpe und Sole-Wasser-Wärmepumpe für ein Bestandsgebäude. Für die Bewertung der Umweltfreundlichkeit bzw. Klimaschutzwirksamkeit werden die CO2-äquivalenten Treibhausgasemissionen (THG-Emissionen) und der nicht-erneuerbare Primärenergiebedarf (KEV) der Systeme bilanziert. Für den fairen Vergleich werden Systeme mit investkostengleichen Gesamtinvestitionen gebildet, indem die Luftwärmepumpe zusätzlich um eine PV-Anlage ergänzt wird.

För att nå Sveriges uppsatta klimatmål med netto noll växthusgasutsläpp år 2045 måste bygg- och fastighetssektorn som står för omkring 21% av Sveriges totala växthusgasutsläpp, arbeta för en hållbar utveckling. För att reglera utsläppen av växthusgaser i bygg- och fastighetssektorn har riksdagen infört ett krav på upprättande av klimatdeklaration vid uppförande av nya byggnader från och med januari 2022. Klimatdeklarationen ska redovisa vilken påverkan på klimatet en ny byggnad har genom en livscykelanalys. Kravet på inlämnandet av deklarationen är i slutet av ett byggprojekt. Många aktörer inom byggbranschen menar på att klimatberäkningar behöver påbörjas under tidigare skeden för att kunna påverka byggnadens hållbarhet. Detta då möjligheterna att påverka en byggnads energibehov och dess utsläpp av växthusgaser är som störst i tidigt projekteringsskede. Dock är informationen om den planerade byggnaden begränsad i tidigt skede och projektspecifik information saknas för att djupgående kunna bedöma byggnadens resultat och prestanda. Denna studie fokuserar på implementering av klimatberäkningar i tidiga skeden av projekteringsprocessen, anpassat för arkitekter och konstruktörers dagliga arbete. Detta då metodiska förenklingar och standardiserade tillvägagångssätt rörande klimatberäkningar i tidiga skeden ansetts relativt outforskat i tidigare publiceringar inom ämnet. Syftet med studien är att undersöka hur genomförandet av klimatberäkningar i tidigt skede av projekteringsprocessen kan gå till. Detta för att få en förståelse över hur implementeringen av arbetet med klimatberäkningar kan leda till ökad hållbarhet och ekonomisk lönsamhet i byggprojekt. Med en ökad förståelsen för klimatberäkningsarbetet i tidigt skede, är även målet att ta fram ett förslag på en standardiserad metod som vägleder arkitekter och konstruktörer att ta hållbara beslut i tidiga skeden.  Forskningsmetoden som använts är av kvalitativ karaktär och innefattar en litteraturstudie, fallstudie, intervju- och enkätstudie. Studien har utgått från ett konsultföretag med fokus på områdena arkitektur och byggkonstruktion. Enkätstudien har haft som syfte att undersöka hur arbetet inom fallföretaget fungerar idag. Intervjustudien har fokuserat på hur arbetet kan fungera i framtiden och fallstudien har undersökt/observerat hur arbetet med klimatberäkningar kan utföras i praktiken med hjälp av programvaran One Click LCA. Litteraturstudien har bidragit till djupare förståelser inom ämnet och väglett problemformuleringen i studien. Användandet av flera forskningsmetoder kallas för triangulering och bidrar till stärkt tillförlitlighet och trovärdighet för studien.     Studien visar på att det inledningsvis i ett projekt är lämpligast att använda sig av tidigare gjorda klimatberäkningar för att spara in tid och pengar. Användandet av tidigare beräkningar bör utgå från referensprojekt som organisationen själv tagit fram för att kunna motivera hur beräkningarna gått till. När egna klimatberäkningar utförs är det viktigt att de som utför arbetet med klimatberäkningarna själva är involverade i projektet. Det är även viktigt att alla projektmedlemmar har övergripande inblick i vad som krävs i ett modelleringsverktyg för att indata ska fungera på bästa sätt i ett automatiserat klimatberäkningsverktyg. Genom implementerandet av en standardiserad metod, uppstår en struktur som medför att inga viktiga moment glöms bort samt medför att fler kan få en inblick i arbetet och introduceras till projektet på ett enkelt sätt. Ett förslag på en standardiserad metod är framtaget utifrån analys av empirin i detta arbete och innefattar viktiga punkter för uppstarten/implementeringen av arbetet med klimatberäkningar i en organisation. Det innefattar även förslag på viktiga punkter när det gäller utförandet av klimatberäkningar i specifika projekt. / To reach Sweden’s climate goal of net zero greenhouse gas emissions in 2045, the construction and property sector must act for a sustainable development. Today the sector accounts for around 21% of Sweden’s total greenhouse gas emissions. In order to regulate the emissions of greenhouse gases in the construction and property sector, the government in January 2022 introduced a requirement for establishing climate declaration for the construction of new buildings. The climate declaration must report the impact a new building has on the climate, through a life cycle analysis. The requirement for when the declaration must be submitted is at the end of a construction project. Many actors in the construction industry believes that climate calculations need to be started in earlier stages to be able to affect the sustainability of the building. At the same time the information about the planned building is limited in the early stages and project-specific information is missing to be able to assess the building's results and performance in depth. This study focuses on the implementation of climate calculations in the early stages of the design process, adapted to the daily work of architects and constructors. This as methodological simplifications and standardized approaches regarding climate calculations in the early stages were considered relatively unexplored in previous publications in the subject. The purpose of the study is to investigate how the implementation of climate calculations in the early stages of the design process can be done. This is to gain an understanding of how the implementation of the work with climate calculations can lead to increased sustainability and economic profitability in construction projects. With an increased understanding of the climate calculation work at an early stage, the goal is also to develop a proposal for a standardized method that guides architects and constructors to make sustainable decisions in the early stages.  The study uses a qualitative research method that includes a literature study, case study, interview- and survey study. The study is based on a consulting company with a focus on the areas of architecture and building construction. The purpose of the survey study was to examine how the work within the case company operates today. The interview study has focused on how the climate calculation work can be operated in the future and the case study has examined/observed how the work with climate calculations can be carried out in practice using the One Click LCA software. The literature study has contributed to deeper understandings within the subject and guided the research topic in the study. The use of several research methods is called triangulation and contributes to strengthened reliability and validity of the study. The study shows that initially in a project it is appropriate to use previously made climate calculations to save time and money. The use of previous calculations should be based on reference projects that the organization itself has developed to be able to justify how the calculations were made. When conducting climate calculations, it is important that those who carry out the calculations are involved in the project. It is also important that all project members have an overall insight into what is required in a modeling tool, so the input data operates in the best way in an automated climate calculation tool. Through the implementation of a standardized method, a structure emerges, no important aspects are forgotten, and more people can gain an insight into the work and easily be introduced to the project. A proposal of a standardized method is developed based on the empirical analysis in this study and includes important points for the start-up/implementation of the work with climate calculations in an organization. It also includes suggestions on important points regarding the execution of climate calculations in specific projects.

No description available.

The steel manufacturing industry is one of the largest emitters of CO2, accounting for upwards of 8.8% of all anthropogenic CO2 emissions. The governments are charging taxes on CO2 emissions, which incentivize the industry to further reduce CO2 emissions. At present, much of the CO2, produced in the steel manufacturing process occurs as a result of coke oven and blast furnace gas by-products. As such, two major strategies have been proposed to reduce steel-manufacturing-related CO2 emissions: producing more electricity via optimized combined cycle power plants (CCPP), and converting off-gas by-products into methanol (CBMeOH). The present research consists of an economic and environmental analysis of the status quo, CCPP, and CBMeOH systems for five locations: Ontario, the USA, Finland, Mexico, and China. The economic analysis considered factors such as carbon tax, electricity price, methanol price, electricity carbon intensity, power purchasing parity, and income tax. In the CCPP process, desulphurization is conducted using ProMax with MDEA as the solvent, while the CBMeOH process uses a membrane to separate the bulk H2S, with organic sulfurs such as thiophene being removed via CO2+steam reforming and middle-temperature removal. The results of the economic analysis revealed the CBMeOH plant to be the most profitable in Ontario, the USA, China, and Mexico, while the CCPP system was shown to be the most profitable in Finland. The environmental analysis was conducted using the TRACI, CML-IA, ReCiPe2016, and IMPACT2002+ tools in SimaPro V9, with the results showing the CBMeOH system to be the most environmentally option in Ontario, Finland, and China, and the CCPP system as the most environmentally friendly option in the USA and Mexico. / Dissertation / Doctor of Philosophy (PhD)

Dans un contexte où les tensions liées aux ressources énergétiques fossiles sont de plus en plus vives, concevoir une nouvelle manière d'appréhender le contexte énergétique est devenu essentiel. Les moyens de production et de consommation énergétiques habituels ont montré leur limite avec l'apparition de nouveau type de pollution pour différents secteurs. Dans ce rapport de thèse, nous nous sommes essentiellement axés sur le secteur de l'électricité en proposant un outil, d'aide à la décision, pour simuler la consommation électrique ainsi que la production électrique à partir des énergies renouvelables (EnR). La simulation de la consommation électrique permet d'avoir des informations à différents échelles d'observation en s'appuyant sur une démarche systémique et typologique, qui permet de calculer le bilan carbone associé à cette consommation ainsi que son coût annuel. Par la suite, cette consommation a été analysée à l'échelle horaire afin de pouvoir là mettre en relation avec des fichiers de production pour effectuer un pilotage au niveau de la courbe de charge. Ce pilotage a pour but de lisser les pics au niveau de la courbe de charge. Les premiers résultats analytiques obtenus à l'aide des outils développés montrent qu'il est possible de réduire l'appel au réseau électrique normal à un certain niveau en fonction des dimensionnements des systèmes de production EnR et du stockage. Ainsi que de pouvoir limité les coûts d'investissement au juste nécessaire, c'est-à-dire avoir un prix le moins cher possible, grâce à une optimisation du système EnR. / In a context where the tensions linked to fossil energy resources are increasing, design a new way of understanding the energy context has become essential. The usual means of energy production and consumption have shown their limit with the appearance of new types of pollution for different sectors. In this thesis, we mainly focused on the electricity sector by proposing a tool to simulate electricity consumption and electricity production from renewable energies (RES). Simulation of electricity consumption allows having information on different observation scales based on a systemic and typological approach, according to which the associated carbon footprint to this consumption is being calculated as well as its annual cost. Subsequently, this consumption was analyzed at the hourly scale, which is to relate it to the production files in order to control the load curve. This control aims to smooth down the peaks of the load curve. The first analytical results, obtained by using the developed tools, show that it is possible to reduce the use of the normal electrical network to a certain level according to the dimensions of the RES production systems and storage.

The North House is a proof-of-concept prefabricated solar powered home designed for northern climates, and intended for the research and promotion of high-performance sustainable architecture. Led by faculty at the University of Waterloo, the development and design of the project involved a broad collaboration between faculty and students at the University of Waterloo, with Ryerson University and Simon Fraser University. The North House prototype competed in the U.S. Department of Energy’s Solar Decathlon in October of 2009. This thesis identifies the North House as a component-based building. It illustrates in detail the components of which the house is composed, the sequence by which they are assembled, and the details that allow for the building’s rapid assembly and disassembly. Finally, the thesis explores the possibilities afforded by componentbased architecture including adaptability, off-site fabrication and demountability. Drawing on this, the thesis projects future ways of designing buildings sustainable to both manufacture and operate.

The North House is a proof-of-concept prefabricated solar powered home designed for northern climates, and intended for the research and promotion of high-performance sustainable architecture. Led by faculty at the University of Waterloo, the development and design of the project involved a broad collaboration between faculty and students at the University of Waterloo, with Ryerson University and Simon Fraser University. The North House prototype competed in the U.S. Department of Energy’s Solar Decathlon in October of 2009. This thesis identifies the North House as a component-based building. It illustrates in detail the components of which the house is composed, the sequence by which they are assembled, and the details that allow for the building’s rapid assembly and disassembly. Finally, the thesis explores the possibilities afforded by componentbased architecture including adaptability, off-site fabrication and demountability. Drawing on this, the thesis projects future ways of designing buildings sustainable to both manufacture and operate.

Inom sjukvården används – precis som överallt där människor sover – sängkläder av hygienskäl. Problem med smittspridningar av typen multiresistenta bakterier (MRSA) och spridning av andra sjukdomar har drivit företag som Cellcomb i Karlstad AB till att utveckla engångssängkläder för att förhindra detta. Engångssängkläderna är skyddade av en biofilm som ska ge ökat skydd mot bakterier och fungerar som en barriär så att inte vätska tränger igenom. Problemet är att det inte finns mycket till underlag för hur engångssängkläderna står sig mot vanliga sängkläder ur miljösynpunkt. I dagsläget använder sjukhus traditionella sängkläder till sina patienter och sedan transporteras dessa till tvätteri och tvättas. Att tvätta och torka sängkläder är energikrävande och ett alternativ till detta skulle kunna vara att använda engångssängkläder. En förenklad LCA gjordes för att ta reda på om sängkläder tillverkade av bomull och polyester eller engångssängkläder tillverkade av polypropylen alternativt viskosmaterialet Tencel är det mest miljövänliga. För att ta reda på det gjordes studiebesök och data samlades in genom en litteraturstudie och från företag. Resultaten visade att i ett grundfall med Centralsjukhuset i Karlstad var energianvändningen för de tvättbara sängkläderna lägre än Tencel och försumbart lägre än polypropylen. Flera fall med känslighetsanalyser gjordes för att undersöka hur indata påverkade resultaten. Fallen visade att det kan variera vilket av alternativen som blir mest gynnsamt, framför allt när det gäller vilken typ av energi tvätteriet använder. Engångssängkläderna av Tencel visade sig vara bäst när det gällde andel förnybar energi följt av de tvättbara sängkläderna och sist polypropylen. Ur ett ekotoxicitets- och vattenanvändningsperspektiv blev båda engångssängkläderna mer gynnsamma än de tvättbara sängkläderna. Två slutsatser kan dras utifrån den här studien: de tre alternativen är likvärdiga energimässigt utifrån energianvändning, andel förnybar energi och de fallstudier som gjorts, men att engångssängkläderna står sig bättre när det gäller ekotoxicitet samt vattenanvändning. Den andra slutsatsen är att resultaten är fallberoende. En utökad studie skulle kunna göras med fler viktiga miljöparametrar och fler känslighetsanalyser. / In healthcare – as in any other place where people sleep – beddings are used for hygiene reasons. Problems with spreading of bacteria diseases such as multi resistant bacteria (MRSA) and various other diseases have pushed companies like Cellcomb i Karlstad AB to develop disposable beddings in order to prevent this. These disposable beddings are protected with a biofilm which serves as a barrier, preventing liquids to pass through. The problem is that there is not much information about how these beddings perform from an environmental perspective. At present, hospitals are using traditional beddings for their patients and are then transported to laundries for washing. This is an energy intensive process and as an alternative, disposable beddings could be used. A simplified LCA was used to find out if beddings made out of cotton and polyester or disposable beddings made out of polypropylene or a viscose material called Tencel was the most favourable from an environmental perspective. To achieve this, various study visits were performed along with a literature study and data collection from companies. The results showed that for a basic case performed with Centralsjukhuset i Karlstad the washable beddings used less energy than Tencel and negligibly less energy than polypropylene. Several case studies were performed in order to examine how different data could alter the results. The case studies showed that which of the alternatives became the most favourable varied depending on the case, especially regarding which kind of energy was being used in the laundry. The disposable beddings made out of Tencel proved to be the best alternative regarding the use of renewable energy, followed by the washable beddings and last polypropylene. From a perspective of eco toxicity and water use both of the disposable beddings turned out more favourable. Two conclusions could be drawn from this study: the alternatives are equally favourable regarding energy use, renewable energy use and the case studies that were performed, but the disposable beddings are more preferable concerning eco toxicity and water use. The second conclusion is that the results depend on which case is studied. An expanded study could be performed using more environmental parameters.

Le bâtiment est considéré comme étant le premier secteur consommateur d’énergie dans le monde. Dans la région méditerranéenne, face à la crise économique et aux engagements pris pour limiter les effets produisant le réchauffement climatique, il est devenu impératif de réduire la consommation énergétique des bâtiments que ce soit par la conception des bâtiments neufs ou par la réhabilitation du parc existant. Dans ce cadre-là, chercher des solutions techniques optimales en tenant compte des critères économiques, environnementaux et sociétaux est un problème très complexe du fait du nombre élevé de paramètres à prendre en compte. Pour remédier à ce problème, un état de l’art des méthodes d’optimisation multicritère a été réalisé. Nous avons constaté que plusieurs contraintes existent lors de l’utilisation de ces méthodes telles qu’un temps de calcul élevé et la non-maîtrise de la convergence des résultats vers des optimums globaux recherchés. L’objectif de notre travail est de proposer une nouvelle méthode qui permette de contourner ces difficultés. Cette méthode est basée, dans un premier temps, sur le développement des modèles polynomiaux pour la prédiction des besoins de chauffage, de refroidissement, d’énergie finale et du confort thermique d’été à l’aide du logiciel TRNSYS. Pour établir ces modèles, nous avons utilisé la méthode des plans d’expériences et des simulations thermiques dynamiques. À partir de ces modèles, une analyse de sensibilité a été entamée afin d’identifier les paramètres les plus influents sur les besoins énergétiques et le confort thermique d’été. Une base de données est utilisée associant chaque paramètre à son coût et à son impact environnemental sur son cycle de vie. Ensuite, une étude paramétrique complète a été réalisée en utilisant les fonctions polynomiales dans le but de déterminer un ensemble de solutions optimales à l’aide de l’approche du Front de Pareto. Cette nouvelle méthode a été appliquée dans le but de concevoir des bâtiments neufs à haute efficacité énergétique à des coûts maîtrisés pour les six zones climatiques du Maroc. La validation des modèles polynomiaux réalisée grâce à une comparaison avec des simulations aléatoires a donné des résultats très satisfaisants. Avec un modèle polynomial de second degré, l’erreur maximale sur les besoins énergétiques et le confort thermique adaptatif d’été ne dépasse pas 2 kWh/m².an et 9% respectivement dans la plupart des cas. Les modèles développés ont ensuite été utilisés pour l’aide à la décision multicritères. Les résultats obtenus ont montré que des bâtiments à très faibles besoins énergétiques peuvent être construits à un coût raisonnable, et qu’un effort doit être porté sur des solutions plus performantes pour le rafraîchissement en été. Enfin, nous avons mis en œuvre la méthode que nous avons développée dans le cadre de la réhabilitation d’un bâtiment existant à La Rochelle. Les critères environnementaux ont aussi été intégrés à la recherche de solutions optimales. La solution retenue selon 14 critères correspond à un ensemble de solutions techniques permettant d’obtenir des besoins de chauffage de l’ordre de 15 kWh/m².an avec un compromis réalisé entre l’efficacité énergétique, le confort des occupants, les impacts environnementaux et la maîtrise du coût de la réhabilitation. La méthode développée dans le cadre de ce travail a montré un fort potentiel d’utilisation pour l’aide à la décision multicritère lors de la conception des bâtiments neufs ou en réhabilitation. Elle permet d’effectuer très rapidement une optimisation opérationnelle de l’enveloppe pour contribuer à des bâtiments durables, confortables, à coût maîtrisé et à basse consommation énergétique. / The building sector is the largest consumer of energy in the world. In Mediterranean region, facing the economic crisis and commitments for climate change, the reduction of energy consumption for both new and existing buildings is more necessary. Against this background, seeking optimal technical solutions taking into account the economic, environmental and societal criteria is a very complex problem due to the high number of parameters to consider. In order to solve this problem, a state of the art of multi-criteria optimization method has been achieved. We found that many constraints exist when using these methods such as high time calculation and no absolute assurance to find the global optimum. Thus, the main objective of the present work is to propose a new method that allows overcome these difficulties. This method is based on the development of polynomial models for the prediction of heating energy needs, cooling energy needs, final energy needs and summer thermal comfort. To establish these models, we used the design of experiments method and dynamic thermal simulations using TRNSYS software. From these models, a sensitivity analysis has been achieved in order to identify the leading parameters on energy requirements and thermal comfort in summer. A database associating each parameter for its cost and environmental impact on its lifetime was generated from CYPE software and INIES database. Then, a detailed parametric study was performed using polynomial functions for determining a set of optimal solutions using the Pareto front approach. This new method was applied to design new buildings with high energy efficiency at controlled costs for the six Moroccan climate zones. The validation of polynomial models through a comparison with random simulations gave very satisfactory results. With a polynomial model of the second order, the maximum error on the energy needs and the adaptive thermal comfort did not exceed 2 kWh/m².an and 9% respectively. The developed models were used for multiple-criteria decision analysis. The results showed that buildings with very low energy needs can be built with a reasonable cost. On the other hand an effort should be focused on more efficient solutions for adaptive thermal comfort in summer especially for Marrakech and Errachidia. Finally, we also implemented our method to a project of energy rehabilitation of an existing building located in La Rochelle (France). Environmental criteria were also taken into account in the optimization process. The selected technical solutions procured approximately 15 kWh/m².year of heating energy needs. The developed multicriteria decision method showed a great potential for both designing new and existing buildings with high energy efficiency. It allows a very fast operational optimization of sustainable buildings at reasonable cost and low energy consumption.

Submitted by Marcia Silva (marcia@latec.uff.br) on 2016-10-19T18:23:01Z No. of bitstreams: 1 Dissert Pedro Paulo Silveira Felicíssimo.pdf: 2519035 bytes, checksum: 23d5c78d7f6eb64ebc2c2ea24e489d84 (MD5) / Rejected by Biblioteca da Escola de Engenharia (bee@ndc.uff.br), reason: Favor acertar o nome do autor na ficha catalográfica e incluir folha de rosto. Atenciosamente, Catarina Ribeiro Bibliotecária BEE - Ramal 5992 on 2017-01-27T10:56:25Z (GMT) / Submitted by Marcia Silva (marcia@latec.uff.br) on 2017-02-08T17:37:49Z No. of bitstreams: 1 Dissert Pedro Paulo Silveira Felicíssimo.pdf: 2519035 bytes, checksum: 23d5c78d7f6eb64ebc2c2ea24e489d84 (MD5) / Rejected by Biblioteca da Escola de Engenharia (bee@ndc.uff.br), reason: Favor incluir no trabalho a folha de rosto (elemento obrigatório), antes da ficha catalográfica. Obs.: Na ficha catalográfica, o nome do autor está incompleto. Atenciosamente, Catarina Ribeiro Bibliotecária BEE - Ramal 5992 on 2017-02-15T11:58:04Z (GMT) / Submitted by Marcia Silva (marcia@latec.uff.br) on 2017-05-09T19:55:21Z No. of bitstreams: 1 Dissert Pedro Paulo Silveira Felicíssimo.pdf: 2519035 bytes, checksum: 23d5c78d7f6eb64ebc2c2ea24e489d84 (MD5) / Approved for entry into archive by Biblioteca da Escola de Engenharia (bee@ndc.uff.br) on 2017-05-15T12:51:46Z (GMT) No. of bitstreams: 1 Dissert Pedro Paulo Silveira Felicíssimo.pdf: 2519035 bytes, checksum: 23d5c78d7f6eb64ebc2c2ea24e489d84 (MD5) / Made available in DSpace on 2017-05-15T12:51:46Z (GMT). No. of bitstreams: 1 Dissert Pedro Paulo Silveira Felicíssimo.pdf: 2519035 bytes, checksum: 23d5c78d7f6eb64ebc2c2ea24e489d84 (MD5) Previous issue date: 2016-05-05 / Este trabalho de pesquisa apresenta uma avaliação das dimensões estratégicas para proposição de um índice de valor adicional sustentável para avaliação de projetos de reciclagem de alumínio. Para este propósito, utilizou-se as metodologias do tipo qualitativa com revisão da literatura sobre os modelos, dimensões e indicadores de sustentabilidade mais utilizados por empresas, aplicando-se a pesquisa quantitativa, a partir das análises dos relatórios de sustentabilidade e das práticas reais de benchmarking do mercado de reciclagem de alumínio. O método difuso complementa a pesquisa na observação e comprovação dos comportamentos dos indicadores ambientais, econômicos, sociais e normativos, frente às adições crescentes de conteúdo reciclado no produto final. As conclusões da aplicação dos métodos qualitativo, quantitativo e difuso, sinalizam um papel preponderante da dinâmica da dimensão social do modelo para a adição de valor e de sustentabilidade aos processos da logística reversa do alumínio. O acréscimo da dimensão normativa ao modelo proposto, permite aos pesquisadores, questões e perspectivas de futuros estudos para a identificação de estratégias, padrões e parâmetros das empresas na inclusão da reciclagem ao final do ciclo de vida dos produtos. / This research presents an assessment of the strategic dimensions to propose an index of sustainable additional value for the evaluation of aluminum recycling projects. For this purpose, methods of qualitative type was used with literature review of models, dimensions and sustainability indicators most used by companies, to applying quantitative research, from the analysis of sustainability reports and the actual practices of benchmarking aluminum recycling market. The fuzzy method complements research on observation and verification of the behavior of environmental indicators, economic, social and normative, front of increasing additions of recycled content in the final product. The conclusions of the application of qualitative methods, quantitative and fuzzy, signal an important dynamic role of the social dimension of the model for adding value and sustainability to the processes of reverse logistics aluminum. The addition of the normative dimension to the proposed model, allows researchers, questions and prospects of future studies to identify strategies, standards and parameters of the companies in the inclusion of recycling at the end of life product cycle