Greener by Design

Diwekar, Urmila M.

doi:10.1021/es0344617

Cited by 30 publications

(20 citation statements)

References 22 publications

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“…For a recent review of green process design, please refer to Diwekar and Shastri (2011). Figure 1 shows the integrated framework for green process design developed (Diwekar 2003) to include the green engineering principles at all stages. Unlike the traditional process design where engineers are looking for low-cost options, environmental considerations include various objectives like the long-term and short-term environmental impacts.…”

Section: Extending Boundariesmentioning

confidence: 99%

“…Obviously, uncertainties increase as we extend the framework. Integrated framework for green process design (Diwekar 2003) Green engineering also involves eco-friendly management which means sustainable manufacturing practices. In the modern world, business sustainability is often defined as three legged stool where the three legs are environmental sustainability, social sustainability, and economic sustainability (Beloff 2013).…”

Section: Extending Boundariesmentioning

confidence: 99%

“…8 Ito process representation for mortality rate (Diwekar 2005) Perspective on pursuit of sustainability and continuous decisions like material flow needs to be considered. A framework presented by Diwekar and coworkers (Diwekar 2003) is shown in Fig. 10 and is described below.…”

Section: Optimization Approachmentioning

confidence: 99%

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Perspective on pursuit of sustainability: challenges for engineering community

Diwekar

2015

Clean Techn Environ Policy

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Sustainability is a keyword commonly used by researchers and practitioners globally. However, even defining the goals of sustainability is fraught with difficulties and hence attaining it is nearly impossible. Since sustainability is a property of the entire system, engineering sustainability requires the boundaries of the system greatly expanded. The thinking of sustainability also brings in larger time scales. In this article, I present a perspective on journey toward sustainability using systems analysis approaches from various disciplines.

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Section: Extending Boundariesmentioning

confidence: 99%

Section: Extending Boundariesmentioning

confidence: 99%

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Perspective on pursuit of sustainability: challenges for engineering community

Diwekar

2015

Clean Techn Environ Policy

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“…They provide solution-oriented mindsets to re-establish clusters. How to link design principles of green engineering (Anastas and Zimmerman, 2003) with ecosystems, human wellbeing, economy development and governance at a larger scale such as the Earth system as a whole would seem to be much more challenging in a global multi-disciplinary collaboration when interests could have clashed with each other (Levy, 2012;Diwekar, 2003). The proposed 12 principles could be perceived as part of "intervention guidelines'', from an epidemiological or medical term.…”

Section: Green Engineering and Eco-solutionsmentioning

confidence: 99%

Ecosystems and human well-being in the transition towards green engineering and economy

Shiue

2015

Ecological Engineering

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“…The modelling methods developed must provide an integrated solution starting from material level to component level and finally ending up to system level. In previous research, process simulation models have been applied to green energy supply synthesis under uncertain demand conditions, to tackling waste solvents in chemical industry, as well as to the composition of metal alloys produced from scrap metal [7]. The ecodesign concept is examined through two case examples, namely Cu flow through electric motor and Ni flow through combustion boiler coating.…”

Section: Theory/ Experimentalmentioning

confidence: 99%

Ecodesign concept case studies: Cu in electric motor and Ni in waste incinerator

et al. 2013

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VTT has implemented the demand of energy and resource efficiency in the framework of Ecodesign concept covering the whole material life cycle from material sources to material design and manufacturing, component life time optimisation and finally recycling concepts. The vision of the virtually supported Ecodesign concept is to create optimized and efficient machine and device components regarding their whole lifecycle by evolving multiscale modelling.In this presentation we will introduce our development work within our Ecodesign concept by giving two case examples including Cu flow in electrical motor and Ni flow in waste incinerator. In the first case we will discuss raw material scarcity based design criteria, technological challenges and possibilities of Cu substitution and finally energy efficiency in system level. In the latter we will discuss multiscale modelling approach starting from raw materials and new design criteria regarding performance, life time, maintenance strategies and energy efficiency in system level operation. INTRODUCTIONEnergy efficiency is an established, global megatrend throughout the industries in order to secure energy supply, cut costs and mitigate greenhouse gas emissions. Resource efficiency is becoming the demand of industrial activity in sectors like construction, chemicals, automotive, aerospace, machinery or commodities. The alternatives to tackle the raw materials scarcity are either new primary (arctic, seabed) or secondary sources (reuse, recycling) or substitution. Current amount of metals (e.g. Cu, Zn, Ni and Al) that can be directed to recycling from their present use is inadequate compared with the market need. Substitution can be used to develop alternative materials in certain applications or to replace those applications by an equivalent technology that does not rely on the key raw materials.The typical material life cycle starts from primary production, mining. The ore is converted into metallic form, alloyed with other elements and semi-fabricated in a form of, e.g., powder, sheet or forging for manufacturing the final product. Once the product has served for its purpose, it is either recycled or wasted. The resulting carbon and water footprints are large and solutions are looked for from new technology breakthroughs including new material design concepts, additive manufacturing methods and new recycling and recovery technologies. The future society is based on sustainable development, where the re-use is of central importance. Materials reuse, efficient use of secondary flows as well as more efficient recovery technologies provide the basis for the sustainable exploitation of natural resources.The past decade has witnessed a sharp increase in the demand and price of metals and other mineral raw materials. This demand increase has its roots in the rapid growth of countries such as China, India and Brazil, where per-capita material inputs into society have experienced

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Greener by Design

Cited by 30 publications

References 22 publications

Perspective on pursuit of sustainability: challenges for engineering community

Perspective on pursuit of sustainability: challenges for engineering community

Ecosystems and human well-being in the transition towards green engineering and economy

Ecodesign concept case studies: Cu in electric motor and Ni in waste incinerator

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