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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Uma proposta para integração de aspectos ambientais do ecodesign no processo de desenvolvimento de novos produtos. / A proposal to integration of environmental aspects of ecodesign into the process of developing new products.

Varandas Junior, Angelo 16 October 2014 (has links)
O aumento das exigências ambientais pela sociedade, mercado e legislação vem forçando os acadêmicos a buscarem formas de reduzir os impactos ambientais do produto durante todo o seu ciclo de vida. A integração de ferramentas de ecodesign no Processo de Desenvolvimento de Produtos (PDP) visa melhorar os requisitos ambientais do produto sem comprometer o seu desempenho, custo e características. Apesar dessa tendência, as estruturas de PDP não incorporam práticas ambientais de forma adequada. Assim, esse trabalho objetiva integrar práticas de ecodesign em uma estrutura de PDP. Para atingir esse propósito foi empregada uma análise sistemática da literatura mesclando técnicas de análise bibliométrica e de redes sociais, diagramas, mapeamento de 154 métodos de ecodesign, análise das características e questões ambientais de 80 estruturas de PDP e sistematização de 365 aspectos ambientais no PDP. Os resultados demonstram que as estruturas de PDP não enfatizam as fases de pré-desenvolvimento e pós-desenvolvimento que têm importância para redução do impacto ambiental. Portanto, foi elaborada uma proposta detalhada de integração analisando as características e contribuição de cada aspecto ambiental para minimizar o impacto ambiental do produto e sua relação com a função de cada tarefa do PDP. Na avaliação da proposta, verificou-se que nas fases de projeto conceitual e projeto detalhado houve menor aceitação quanto ao momento da integração dos aspectos ambientais, devido à interface dessas fases. Já no planejamento estratégico de projetos, planejamento de projeto e projeto informacional ocorreu desvio padrão alto nas notas, indicando divergência de opinião dos especialistas sobre o tema. Conclui-se que esse trabalho engloba um conjunto de práticas de ecodesign para suportar a tomada de decisão no PDP com objetivo de reduzir o impacto ambiental do produto durante todo o ciclo de vida. / The society, market and legislation demands for sustainability have grown then academics have to revisit the issue and to search for ways to reduce the environmental impact of the product during its life cycle. The integration of ecodesign tools in the Product Development Process (PDP) aiming at the improvement the product environmental requirements without compromising its performance, cost or characteristics. However, in spite of this tendency, the structures of PDP still do not incorporate environmental practices in their activities in a proper manner. Therefore, the proposal of this work is integrating ecodesign practices in the tasks of PDP structure. To achieve this purpose was used the systematic literature review linking techniques such as bibliometric and social networking analysis, diagrams, mapping 154 ecodesign methods, analysis of the characteristics and environmental issues of 80 PDP structures and systematization of 365 environmental aspects in the PDP. The results demonstrate that the PDP structures do not emphasize the phases of pre-development and post-development that are important to reduce environmental impact. Therefore, a detailed proposal for integration was developed by analyzing the characteristics and contribution of each environmental aspect to minimize the environmental impact of the product and its relation to the function of each task of the PDP. In assessing the proposal, it was found that the phases of conceptual design and detailed design were less accepted about time of integration of environmental aspects, due to the interface of these phases. In the strategic planning of projects, project planning and informational project were a high standard deviation in the experts evaluation, indicating divergence of opinion on the theme. In conclusion, this work includes a set of ecodesign practices to support decision making in the PDP in order to reduce the environmental impact of the product throughout its life cycle.
2

Uma proposta para integração de aspectos ambientais do ecodesign no processo de desenvolvimento de novos produtos. / A proposal to integration of environmental aspects of ecodesign into the process of developing new products.

Angelo Varandas Junior 16 October 2014 (has links)
O aumento das exigências ambientais pela sociedade, mercado e legislação vem forçando os acadêmicos a buscarem formas de reduzir os impactos ambientais do produto durante todo o seu ciclo de vida. A integração de ferramentas de ecodesign no Processo de Desenvolvimento de Produtos (PDP) visa melhorar os requisitos ambientais do produto sem comprometer o seu desempenho, custo e características. Apesar dessa tendência, as estruturas de PDP não incorporam práticas ambientais de forma adequada. Assim, esse trabalho objetiva integrar práticas de ecodesign em uma estrutura de PDP. Para atingir esse propósito foi empregada uma análise sistemática da literatura mesclando técnicas de análise bibliométrica e de redes sociais, diagramas, mapeamento de 154 métodos de ecodesign, análise das características e questões ambientais de 80 estruturas de PDP e sistematização de 365 aspectos ambientais no PDP. Os resultados demonstram que as estruturas de PDP não enfatizam as fases de pré-desenvolvimento e pós-desenvolvimento que têm importância para redução do impacto ambiental. Portanto, foi elaborada uma proposta detalhada de integração analisando as características e contribuição de cada aspecto ambiental para minimizar o impacto ambiental do produto e sua relação com a função de cada tarefa do PDP. Na avaliação da proposta, verificou-se que nas fases de projeto conceitual e projeto detalhado houve menor aceitação quanto ao momento da integração dos aspectos ambientais, devido à interface dessas fases. Já no planejamento estratégico de projetos, planejamento de projeto e projeto informacional ocorreu desvio padrão alto nas notas, indicando divergência de opinião dos especialistas sobre o tema. Conclui-se que esse trabalho engloba um conjunto de práticas de ecodesign para suportar a tomada de decisão no PDP com objetivo de reduzir o impacto ambiental do produto durante todo o ciclo de vida. / The society, market and legislation demands for sustainability have grown then academics have to revisit the issue and to search for ways to reduce the environmental impact of the product during its life cycle. The integration of ecodesign tools in the Product Development Process (PDP) aiming at the improvement the product environmental requirements without compromising its performance, cost or characteristics. However, in spite of this tendency, the structures of PDP still do not incorporate environmental practices in their activities in a proper manner. Therefore, the proposal of this work is integrating ecodesign practices in the tasks of PDP structure. To achieve this purpose was used the systematic literature review linking techniques such as bibliometric and social networking analysis, diagrams, mapping 154 ecodesign methods, analysis of the characteristics and environmental issues of 80 PDP structures and systematization of 365 environmental aspects in the PDP. The results demonstrate that the PDP structures do not emphasize the phases of pre-development and post-development that are important to reduce environmental impact. Therefore, a detailed proposal for integration was developed by analyzing the characteristics and contribution of each environmental aspect to minimize the environmental impact of the product and its relation to the function of each task of the PDP. In assessing the proposal, it was found that the phases of conceptual design and detailed design were less accepted about time of integration of environmental aspects, due to the interface of these phases. In the strategic planning of projects, project planning and informational project were a high standard deviation in the experts evaluation, indicating divergence of opinion on the theme. In conclusion, this work includes a set of ecodesign practices to support decision making in the PDP in order to reduce the environmental impact of the product throughout its life cycle.
3

Products in environmental management systems : the role of auditors

Ammenberg, Jonas, Sundin, Erik January 2005 (has links)
For standardized environmental management systems (EMS) to be environmentally effective tools, they should affect important environmental aspects related to flows of materials and energy, which for manufacturing companies are closely connected to their products. This paper presents how external environmental auditors interpret and apply important product-related requirements of ISO 14001 at manufacturing companies in Sweden. The results indicate that the link between EMS and products is rather weak. Products are seldom regarded as significant environmental aspects and are therefore not within the main scope of many EMS, which are mainly focused on sites. However, all of the interviewed auditors require that some kind of environmental considerations be incorporated into product development, but these considerations are to large extent site oriented; how they are prioritized in relation to other factors such as economics and other customer priorities appears to be up to the companies. The paper includes some recommendations to strengthen the role of products within the framework of standardized EMS.
4

Assessing design strategies for improved life cycle environmental performance of vehicles

Poulikidou, Sofia January 2016 (has links)
Vehicle manufactures have adopted different strategies for improving the environmental performance of their fleet including lightweight design and alternative drivetrains such as EVs. Both strategies reduce energy during use but may result in a relative increase of the impact during other stages. To address this, a lifecycle approach is needed when vehicle design strategies are developed. The thesis explores the extent that such a lifecycle approach is adopted today and assesses the potential of these strategies to reduce the lifecycle impact of vehicles. Moreover it aims to contribute to method development for lifecycle considerations during product development and material selection. Current practices were explored in an empirical study with four vehicle manufacturers. The availability of tools for identifying, monitoring and assessing design strategies was explored in a literature review. The results of the empirical study showed that environmental considerations during product development often lack a lifecycle perspective. Regarding the use of tools a limited number of such tools were utilized systematically by the studied companies despite the numerous tools available in literature. The influence of new design strategies on the lifecycle environmental performance of vehicles was assessed in three case studies; two looking into lightweight design and one at EVs. Both strategies resulted in energy and GHG emissions savings though the impact during manufacturing increases due to the advanced materials used. Assumptions relating to the operating conditions of the vehicle e.g. lifetime distance or for EVs the carbon intensity of the energy mix, influence the level of this tradeoff. Despite its low share in terms of environmental impact EOL is important in the overall performance of vehicles. The thesis contributed to method development by suggesting a systematic approach for material selection. The approach combines material and environmental analysis tools thus increases the possibilities for lifecycle improvements while minimizing risk for sub-optimizations. / <p>QC 20160920</p>
5

Design para o ambiente: análise da integração de aspectos ambientais no processo de desenvolvimento de produtos. / Design for environment: analysis of environmental aspects integration in product development process.

Silva, Luciana do Carmo Leite 08 December 2011 (has links)
O mercado consumidor está cada vez mais propenso a exigir posturas corporativas sustentáveis das organizações. Nesse sentido, muitos estudos têm sido realizados sobre a incorporação destes conceitos nas organizações. A literatura apresenta diversos benefícios disponíveis para empresas com iniciativas ecologicamente corretas como benefícios financeiros, mercadológicos, valorização das ações da empresa e geração de inovações em produtos e processos, construindo vantagens absolutas sobre outras organizações. Esses benefícios têm desencadeado uma série de iniciativas voltadas para a integração de aspectos ambientais no Processo de Desenvolvimento de Produtos, particularmente, em grandes empresas. Este tipo de inovação envolve uma série de práticas, modelos de negócio e mudanças no pensamento individual e organizacional. No entanto, na maioria das empresas, prevalecem atitudes pontuais nos seus processos, com tolerância para atitudes de redução ou minimização da poluição. Estas posturas evidenciam que, apesar dos benefícios descritos, muitas empresas ainda resistem à implementação destas práticas, revelando que esta resistência pode residir nos custos ou na complexidade de implementação destas práticas. Neste contexto, o presente estudo tem como objetivo realizar uma análise sobre como ocorre a integração de aspectos ambientais no Processo de Desenvolvimento de Produtos (PDP). Para tanto, estruturou-se uma pesquisa com base na teoria vigente e na condução de um estudo de caso múltiplo com duas unidades de análise. Com o estudo de caso, o trabalho busca responder as questões de pesquisa relacionadas à como ocorre a escolha e a incorporação de métodos e/ou ferramentas de apoio no PDP. A principal conclusão do estudo é que questões como contexto mercadológico, porte, setor de atuação, severidade da legislação ambiental no setor, cultura organizacional e nível/estágio de implementação do DfE contingenciam as formas de Integração de aspectos ambientais no PDP, apontando para a necessidade de criação de um modelo contingencial para este processo. / The consumer market is increasingly likely to require sustainable corporate postures from the organizations. Many studies have been conducted on the incorporation of these concepts in organizations. The literature presents many benefits available to companies with green initiatives as financial and marketing benefits, the valuation of the company\'s stocks and products and processes innovations, creating competitive advantage. These benefits have sparked many initiatives aimed at product development focused on environmental issues, specially, in large companies. This type of innovation involves a series of methods, business models and changes in individual and organizational thinking. However, in most companies, prevail specific attitudes in their processes, with tolerance for attitudes of pollution reduction or minimization. These attitudes show that, despite the benefits described, many companies still resist the implementation of these methods, revealing that resistance may reside in costs or complexity of implementing these methods. In this context, this study aims to conduct an analysis on how the integration of environmental issues in Product Development Process (PDP) occurs. To do so, a research was structured based on current theory and conducting a multiple case study with two units of analysis. With the case study, the work seeks to answer research questions related to how does the selection and incorporation of methods and/or tools in the PDP occurs. The main conclusion of the study is that issues such as marketing context, size, sector of operation, severity of environmental legislation in the sector, organizational culture and level/stage of implementation of DfE sets out the forms of integration of environmental aspects in the PDP, pointing to the need to establish a contingency model for this process.
6

Design para o ambiente: análise da integração de aspectos ambientais no processo de desenvolvimento de produtos. / Design for environment: analysis of environmental aspects integration in product development process.

Luciana do Carmo Leite Silva 08 December 2011 (has links)
O mercado consumidor está cada vez mais propenso a exigir posturas corporativas sustentáveis das organizações. Nesse sentido, muitos estudos têm sido realizados sobre a incorporação destes conceitos nas organizações. A literatura apresenta diversos benefícios disponíveis para empresas com iniciativas ecologicamente corretas como benefícios financeiros, mercadológicos, valorização das ações da empresa e geração de inovações em produtos e processos, construindo vantagens absolutas sobre outras organizações. Esses benefícios têm desencadeado uma série de iniciativas voltadas para a integração de aspectos ambientais no Processo de Desenvolvimento de Produtos, particularmente, em grandes empresas. Este tipo de inovação envolve uma série de práticas, modelos de negócio e mudanças no pensamento individual e organizacional. No entanto, na maioria das empresas, prevalecem atitudes pontuais nos seus processos, com tolerância para atitudes de redução ou minimização da poluição. Estas posturas evidenciam que, apesar dos benefícios descritos, muitas empresas ainda resistem à implementação destas práticas, revelando que esta resistência pode residir nos custos ou na complexidade de implementação destas práticas. Neste contexto, o presente estudo tem como objetivo realizar uma análise sobre como ocorre a integração de aspectos ambientais no Processo de Desenvolvimento de Produtos (PDP). Para tanto, estruturou-se uma pesquisa com base na teoria vigente e na condução de um estudo de caso múltiplo com duas unidades de análise. Com o estudo de caso, o trabalho busca responder as questões de pesquisa relacionadas à como ocorre a escolha e a incorporação de métodos e/ou ferramentas de apoio no PDP. A principal conclusão do estudo é que questões como contexto mercadológico, porte, setor de atuação, severidade da legislação ambiental no setor, cultura organizacional e nível/estágio de implementação do DfE contingenciam as formas de Integração de aspectos ambientais no PDP, apontando para a necessidade de criação de um modelo contingencial para este processo. / The consumer market is increasingly likely to require sustainable corporate postures from the organizations. Many studies have been conducted on the incorporation of these concepts in organizations. The literature presents many benefits available to companies with green initiatives as financial and marketing benefits, the valuation of the company\'s stocks and products and processes innovations, creating competitive advantage. These benefits have sparked many initiatives aimed at product development focused on environmental issues, specially, in large companies. This type of innovation involves a series of methods, business models and changes in individual and organizational thinking. However, in most companies, prevail specific attitudes in their processes, with tolerance for attitudes of pollution reduction or minimization. These attitudes show that, despite the benefits described, many companies still resist the implementation of these methods, revealing that resistance may reside in costs or complexity of implementing these methods. In this context, this study aims to conduct an analysis on how the integration of environmental issues in Product Development Process (PDP) occurs. To do so, a research was structured based on current theory and conducting a multiple case study with two units of analysis. With the case study, the work seeks to answer research questions related to how does the selection and incorporation of methods and/or tools in the PDP occurs. The main conclusion of the study is that issues such as marketing context, size, sector of operation, severity of environmental legislation in the sector, organizational culture and level/stage of implementation of DfE sets out the forms of integration of environmental aspects in the PDP, pointing to the need to establish a contingency model for this process.
7

An Interactive Support For Developing Environmentally Friendly Product Lifecycles

Kota, Srinivas 01 1900 (has links) (PDF)
Products make substantial impact on environment. Design for Environment (DfE) is an approach to design where all the environmental impacts of a product are considered over entire products life. Since over 80% of the product costs are committed during the early stages, design can play a central role in reducing this environmental overloading by product. However, unlike cost and performance, use of environmental criteria and DfE is far from part of mainstream designing. Individual guidelines often exist for DfE but these are not integrated with design tools. There is a need for capture of the rationale in design process as a know how backup for later use. Life Cycle Assessment (LCA) is currently the most promising and scientifically proven technique for estimating environmental impacts of a product during its lifecycle. Current LCA tools are not well integrated with design process and CAD tools. Consequently, there is a need for an LCA tool integrated into the natural design process that can be applied to early as well as detailed design stages. Detailed LCA is critically dependent on high volumes of product specific data, time consuming, often unaffordable and used after the detailed stages of design. Current approximate LCA methods are either incomplete, inaccurate or require prior knowledge of what data is important There is substantial uncertainty involved in the environmental impact calculations in LC. While Literature discusses uncertainty of impact data, there is no discussion on how to calculate and represent the total uncertainty in the potential impact of a product proposal at any given stage in design with respect to LCA. There is a need for a method that can aid in decision making by supporting quantitative comparison of available alternatives to identify the best alternative, under uncertain information about alternatives. Often the likely performance, cost or environmental impacts of a product proposal could be estimated only with certain confidence, which may vary from one proposal to another. The overall objective of this thesis is to “Develop a support to the designers using which they can develop environmentally friendly product lifecycles in much the same way as they currently design products, at all stages of their design, while reusing information from their past design activities”. For this the specific objectives are to: 1.Understand how designers currently design products and what they need for developing environmentally friendly product design. 2.Develop a holistic framework for both generation and evaluation of environmentally friendly life cycle proposals. 3. Capture rationale as part of the design process. 4. Estimate uncertainty in the environmental impact assessment during design. 5. Evaluate product lifecycle proposals with multiple criteria under uncertainty. 6. Integrate design process with environmental impact assessment. 7. Apply environmental impact assessment through the design process. From the descriptive studies we found that there is substantial difference in the environmental impact among products having the same functionality generated during the same design process. Analysis of industrial products available in the market show similar results. This means that design can substantially affect the impact created by a product. In our studies, designers did not consider environmental impact as a criterion in evaluation and we also identified the typical activities performed by designers during An Interactive Support for Developing Environmentally Friendly Product Lifecycles designing that must be allowed, supported or taken into account while developing a support for environmentally friendly product lifecycle design (EFPLD). The requirements of the designer for support are: tools should be proactive, easy to learn, understand and use, allow understanding of design rationale, act as a checklist, reduce total time, store knowledge and experience as know‐how backup, useful in all stages of design, not require too much extra effort for analysis, integrated to CAD, aid in trade off between choices, show uncertainty analysis, aid in analysis & improvement, and consider all lifecycle phases. A holistic framework, ACLODS (is a acronym of the six dimensions) constituting the following six dimensions: a) Activities, b) Criteria, c) Lifecycle phases, d) Outcomes, e) Design stages, and f) Product Structure was proposed for development of environmentally friendly product lifecycle designs. Through descriptive studies we found mainly 4 categories and associated sub categories of uncertainty in information with respect to LCA in design. The four categories are uncertainty in product structure, lifecycle phases, data quality, and methodological choices. The sub categories are assemblies, sub- assemblies, parts, relations, and features in product structure, material, production, distribution, usage, and after‐usage in lifecycle phases, temporal relevance, spatial relevance and sample size in data quality, and temporal relevance, spatial relevance, and comprehensiveness in methodological choices. At any point of time, uncertainty in information available is an accrual of the combination of the individual uncertainties. A method called confidence weighted objectives method is developed to compare the whole lifecycle of product proposals using multiple evaluation criteria under various levels of uncertainty. It is compared with normal weighted objectives method and found to be better since it estimates the overall worth of proposal nd confidence on the estimate, enabling deferment of decision making when decisions cannot be made using current information available. A new integrated platform IDEA‐SUSTAIN is developed in this thesis for supporting synthesis in product development on a commercial CAD workspace, while also aiding automated capture and storage of the rationale behind the decisions for retrieval whenever required during design. It is extended to support life cycle assessment of product proposals created by automatically extracting the information already stored while designing and ask for other information required to model the lifecycle without much extra effort from the designer. Then it uses the method for uncertainty reasoning developed also as a part of this research to estimate the level of confidence on the impact value owing to the incompleteness in knowledge available. The estimation is possible at part, assembly or product levels, for a single lifecycle phase or multiple phases. Using in‐house design exercises and feedback questionnaire evaluation of support is done. The usage of Idea‐Sustain has been found to be the best for both generation and evaluation of product proposals. The two computer aided tools – software (LCA) and Idea-Sustain-are compared with each other for fulfilling the functional requirements by analysing the feedbacks given by the designers on these tools against these requirements. Idea‐Sustain fulfilled well most of the requirements while the software (LCA) fulfilled only some of the needs, that too less effectively.
8

Integration of Design for Environment in the vehicle manufacturing industry in Sweden : Focus on practices and tools

Poulikidou, Sofia January 2013 (has links)
Design for Environment (DfE) promotes the systematic consideration of environmental aspects during product design and development. Despite the maturity of concepts and tools in literature, efficient implementation in industries is reported to be low. A need to bridge this gap is identified with studies that look on DfE practices as well as the use and potential of DfE tools. This thesis is part of a research project that investigates DfE practices and the use of tools during vehicle design and development. The aim is to investigate the ways that environmental constraints can be efficiently integrated into product development processes thus assist in improving the environmental performance of products from a life cycle perspective. The scope of the study includes four vehicle manufacturing companies in Sweden. The development and utilization of tools has been also investigated aiming to increase the opportunities for effective use within this product category. Case study methodology, research interviews and literature reviews constitute the research strategy followed in this work. The empirical results presented in this thesis indicated that vehicle manufacturing companies in Sweden are continually working to improve the environmental performance of their products and meet legal and costumer demands. Despite similarities regarding the type of environmental requirements considered, the companies studied have adopted different ways to identify and integrate environmental requirements into their product development process and use DfE tools to different extents. Such variations reflect differences in the success and maturity levels of the DfE practices adopted. A need for increased and more systematic use of tools is identified for all studied companies and especially for analytical tools. Results from the literature review showed that a variety of tools are available that have the potential to support vehicle design processes. However, only a few cover a broad set of aspects identified to be relevant from a vehicle design perspective. For DfE tools to become effective and be used during product development, they need to cover aspects that are relevant for the company and product designers. A need towards the development of tools that assist vehicle or product designers in general, to make informed and comprehensive choices based on a variety of requirements associated to the product, is identified. / Coupling Materials Environmental Analysis - Environmental Effects
9

A plan-do-check-act framework for WEEE and RoHS : a model for implementing WEEE and RoHS by integrating eco-design factors and activities into business operation and strategy.

El-Gomla, Randa A.M. January 2011 (has links)
Eco-design is relatively new and fast growing field of research due to its vital importance to the manufacturing industry and its related environmental issues such as reducing waste, and CO2 emission. A major EU programme relating to the environment is the waste of Electrical and Electronic Equipment (WEEE) directive. The (WEEE) directive specifies ten categories and a voltage range which is up to 1.000 volts AC or 1.500volts DC. The developed framework came for the implementation of Eco-design principles that helps to take into account the adaption of the (WEEE) directive and the restriction of hazard substances (RoHS) used in electrical and electronic equipments. As a result of identify gaps and needs such as a lack of a comprehensive Eco-design framework and the need to integrate it to the normal business operation. In this research the PDCA framework for Eco-design and WEEE directive will be discussed. The framework will encompass all of the Eco-design¿s implementation and integration factors and activities such as WEEE and RoHS directives, Eco-design management, Environmental legislations, Eco-design tools and considerations. The literature review covers the topic of Eco-design¿s related issues, and WEEE and RoHS directives rules. Based on comprehensive questionnaire survey of Eco-design, WEEE and RoHS issues and activities among a sample of environmentally aware companies, statistical analysis is carried out using SPSS software. Then the findings of the survey triangulated with the findings of the literature review formed the basis of the design and implementation plan of the proposed framework

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