Life Cycle Engineering and Sustainable Manufacturing

Herrmann, Christoph; Hauschild, Michael Zwicky; Gutowski, Timothy G.; Lifset, Reid

doi:10.1111/jiec.12177

Cited by 37 publications

(16 citation statements)

References 40 publications

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“…Of course, the increasing power demand values by the screw for increasing rotational speed are compensated by the decreasing rotation time of the screw. It is the result of the ( ) term in formula (2). Hence, the effect of the power demanded by the screw on the SEC is very small.…”

Section: Results At Variable Rotational Velocity Of the Screwmentioning

confidence: 99%

“…Energy efficiency of technological processes is one of the critical issues for the manufacturing industry, mainly due to increasing cost of energy and the impact on the environment. Reducing energy consumption is therefore relevant not only for the economic benefits to producers, but also because of the improving of environmental performance of the products manufacture [1][2][3][4][5][6][7]. This can be done only with precise knowledge of the production process and its energy characteristics, as well as knowledge of effect of processing parameters on energy consumption per mass unit (called SEC -specific energy consumption).…”

Section: Badania Doświadczalne Zużycia Energii W Układzie Uplastycznimentioning

confidence: 99%

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Experimental study on energy consumption in the plasticizing unit of the injection molding machine

2018

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In this work the energy needed for reciprocating screw motion and heating of the barrel were examined by changing various parameters of the injection molding process, measuring the process characteristics and calculating the corresponding values of SEC (specific energy consumption). Five thermoplastic polymers were examined. It was found that the optimal condition from the energy consumption point of view to perform the plasticization of thermoplastic polymers on the research position is low value of rotational velocity of the screw. Furthermore, an increase of the SEC value with increasing barrel temperature was shown. It was also found that changes of back pressure do not affect the energy consumption of the plasticizing system of the injection molding machine.

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Section: Results At Variable Rotational Velocity Of the Screwmentioning

confidence: 99%

Section: Badania Doświadczalne Zużycia Energii W Układzie Uplastycznimentioning

confidence: 99%

Experimental study on energy consumption in the plasticizing unit of the injection molding machine

2018

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“…This challenges interpretation and may be misleading. As a result there is a need for enhanced working relationships between practitioners of (industrial) ecology, environmental studies, public health, and life cycle engineering as discussed in [8]. bottom line is represented somewhat differently than the typical triangle of economy, environment, and society.…”

Section: Evaluating Life Cycle Impacts During Designmentioning

confidence: 98%

Promoting Effectiveness in Sustainable Design

Skerlos

2015

Procedia CIRP

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Sustainable design of engineered products and systems is fantastically challenging. Think up a technology that protects the environment and perhaps a business model cannot be developed for it. Think up a business model for the technology that resonates with the market and consumers use so much of the technology that Earth would have been better without it. In the meantime the landscape is constantly shifting due to transient regulations, technology potential, and knowledge about anthropogenic impacts on Earth. This presentation focuses on the effectiveness of sustainable design and emphasizes the need to simultaneously evaluate market success, environmental impact, and meeting societal needs under regulatory constraints. The paper provides framework approaches to concept generation and design validation that facilitate the evaluation of design sustainability. The presentation that will accompany this paper will discuss research case studies from the University of Michigan and evaluate them against these frameworks as illustrative examples.

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“…Within the field of industrial ecology, eco‐design evolved as a way to evaluate the environmental impact of design alternatives during product development (Herrmann et al. ). The future need to disassemble a product for repair and reuse is addressed specifically by design for disassembly (DfD) (Boothroyd and Alting ).…”

Section: Introductionmentioning

confidence: 99%

Design for Disassembly Criteria in EU Product Policies for a More Circular Economy: A Method for Analyzing Battery Packs in PC‐Tablets and Subnotebooks

Peiró

Ardente

Mathieux

2017

J of Industrial Ecology

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SummaryTechnological advances are increasing the complexity of products, especially those in the area of information and communication technologies. Complexity has increased in several aspects: An increased number of materials are used in products, small amounts of materials with key functions are included (i.e., rare earths in light-emitting diodes), and there are more combinations of diverse types of components and connections. The difficulty of separating parts of the products limits the development of circular economy strategies where repair, upgrade, and remanufacture prevent wasting valuable resources contained in those products. This article presents a method for analyzing the removal of battery packs in newer portable computer models, namely PC-tablets and subnotebooks, as an example on how the design of batteries can affect the life span and potential reuse of such computers. The study analyzes the difficulty of removing battery packs using the results from previous analyses of the design for disassembly of newer computer models together with audiovisual material available on the Internet. The disassembly tasks for removal of batteries are summarized by disassembly codes that could be used to help identify the design features that facilitate easier disassembly. The article goes on to discuss also how the results could be included in European Union (EU) product policies aimed to help meet some of the objectives of the European Commission's (EC) Circular Economy Package. Keywords:batteries circular economy computer eco-design product design resource efficiency Supporting information is linked to this article on the JIE website

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Life Cycle Engineering and Sustainable Manufacturing

Cited by 37 publications

References 40 publications

Experimental study on energy consumption in the plasticizing unit of the injection molding machine

Experimental study on energy consumption in the plasticizing unit of the injection molding machine

Promoting Effectiveness in Sustainable Design

Design for Disassembly Criteria in EU Product Policies for a More Circular Economy: A Method for Analyzing Battery Packs in PC‐Tablets and Subnotebooks

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