Department of Mechanical engineering

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Author: search.filters.author.Kota, SrinivasSubject: search.filters.subject.Life cycle assessment (LCA)

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Now showing 1 - 4 of 4
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    Development of a platform for supporting design for environment
    (ICED, 2007) Kota, Srinivas
    Individual guidelines often exist for DfE but these are not integrated with design tools. There is no comprehensive method that can be useful for the whole life cycle of a product in various stages of its design. Few tools exist that could aid iterative changes to a design required in product development and there is a need for an integrated methodology and computational support for designers. Life Cycle Assessment (LCA) [1] is arguably the most promising and scientifically defendable method for estimating environmental impacts of a product during its lifecycle [2]. Like DfE guidelines, LCA tools are not well integrated with design process and 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
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    Development of a method for estimating uncertainty in evaluation of environmental impacts during design
    (ICED, 2007-08) Kota, Srinivas
    Life Cycle Assessment (LCA) is currently the most promising and scientifically defendable technique for estimating environmental impacts of a product during its lifecycle. Currently, detailed LCA is critically dependent on high volumes of product specific data, time consuming, often unaffordable and used in 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 LCA. Literature suggests that impact estimation results must be accompanied by an estimation of its uncertainty or imprecision, without which the decisions taken could be misleading. During development of a product, there is often a lack of accurate information about its structure, lifecycle stages, and related environmental impact information. As information about the product lifecycle continues to evolve during development, the assessment method should be such that it incorporates the different levels of abstraction about product information. A key result to be presented in this paper is a preliminary method developed using interval algebra and probabilistic theory taking product structure and lifecycle uncertainties into account. This method helps in estimating impact values of a product proposal in the earlier stages of design by providing an uncertainty value in terms of confidence on the result calculated, with the intention of supporting design decision making
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    Requirements for Design and Environmental Assessment of Products
    (Springer, 2022-11) Kota, Srinivas
    There are methods and technologies developed for generation and evaluation of product proposals for better environmental efficiency throughout the lifecycle. But in use phase these are not effective due to complexity of user behaviours and usage scenarios. Literature review revealed the need to develop products with the help of user to achieve sustainability. An outline of a conceptual system to include user in design is proposed in this chapter consisting of different dimensions based on the interactions and influences. It is important to consider how and where the user uses the product in reality while designing by including user also in design process. When different elements like people, product and environment come together, their individual characteristics, context in which they operate determine the interactions and influences among them. The questions need to be answered are identified to develop the proposed system.
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    Importance of User and Usage for Eco-Design
    (Springer, 2012-11) Kota, Srinivas
    There are methods and technologies developed for generation and evaluation of product proposals for better environmental efficiency throughout the lifecycle. But in use phase these are not effective due to complexity of user behaviours and usage scenarios. Literature review revealed the need to develop products with the help of user to achieve sustainability. An outline of a conceptual system to include user in design is proposed in this chapter consisting of different dimensions based on the interactions and influences. It is important to consider how and where the user uses the product in reality while designing by including user also in design process. When different elements like people, product and environment come together, their individual characteristics, context in which they operate determine the interactions and influences among them. The questions need to be answered are identified to develop the proposed system.