Ansätze zur verbesserten Umformung von Papier*/Approaches to improved forming of paper

2017 ◽  
Vol 107 (10) ◽  
pp. 714-718
Author(s):  
P. Prof. Groche ◽  
W. Franke ◽  
A. Ackermann
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Material Properties ◽  
Anisotropic Material ◽  
Three Dimensional ◽  
Size Accuracy ◽  
Packaging Industry ◽  
Industry Sectors

Ein breiterer Einsatz von Papier könnte sich auf die Umweltbilanz zahlreicher Branchen zum Beispiel der Verpackungsindustrie positiv auswirken. Allerdings stehen der Umsetzung zahlreiche Herausforderungen im Wege. Bei der umformtechnischen Herstellung dreidimensionaler Produkte aus Papier erfordern insbesondere die anisotropen Werkstoffeigenschaften geeignete Maßnahmen. Dieser Fachbeitrag zeigt, wie durch gezielte, lokal angepasste Werkzeugtemperierung die Maßhaltigkeit der Produkte zu verbessern ist.   A broad use of paper could improve the life cycle assessment of industry sectors like the packaging industry. However, there are many obstacles to the application. Especially the anisotropic material properties need suitable measures to the forming manufacturing of three-dimensional products made of paper. This article presents how to improve the size accuracy of products made of paper by the use of targeted, locally heated tools.

scholarly journals Correction to “Life-Cycle Assessment of Gingko-Wood Three-Dimensional Membrane for Wastewater Treatment”

ACS Omega ◽  
2020 ◽  
Vol 5 (42) ◽  
pp. 27733-27733
Author(s):  
Faiza Niaz ◽  
Qasim Khan ◽  
Mustafa Ali ◽  
Wenxing Shen
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Three Dimensional

scholarly journals Life-Cycle Assessment of Gingko-Wood Three-Dimensional Membrane for Wastewater Treatment

ACS Omega ◽  
2020 ◽  
Vol 5 (10) ◽  
pp. 4900-4906 ◽  
Author(s):  
Faiza Niaz ◽  
Qasim Khan ◽  
Mustafa Ali ◽  
Wenxing Shen
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Three Dimensional

scholarly journals 3D Concrete Printing Sustainability: A Comparative Life Cycle Assessment of Four Construction Method Scenarios

Buildings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 245
Author(s):  
Malek Mohammad ◽  
Eyad Masad ◽  
Sami G. Al-Ghamdi
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Three Dimensional ◽  
Environmental Benefits ◽  
Concrete Construction ◽  
Conventional Concrete ◽  
Concrete Material ◽  
Construction Methods ◽  
Increase Productivity

Three-dimensional concrete printing (3DCP) has become recognized as a possible alternative to conventional concrete construction, mainly due to its potential to increase productivity and reduce the environmental impact of the construction industry. Despite its up-and-coming popularity within the field, limited research has quantitively investigated the environmental benefits that 3DCP brings. This paper investigates the environmental tradeoff of utilizing 3DCP over conventional construction by conducting a detailed cradle-to-gate life cycle assessment (LCA) study of four case-scenarios (conventional concrete construction, 3DCP with reinforcement elements, 3DCP without any reinforcement, and 3DCP without any reinforcement and utilizing a lightweight printable concrete material.) These case-scenarios were carefully selected to quantify the environmental impact of 3DCP while emphasizing the importance of the material composition. The LCA was conducted for a 1 m2 external load-bearing wall in all four scenarios. The LCA analysis showed that 3DCP significantly reduced environmental effects in terms of global warming potential (GWP), acidification potential (AP), eutrophication potential (EP), smog formation potential (SFP), and fossil fuel depletion (FFD), as compared to conventional construction methods. However, these environmental improvements diminished when 3DCP was coupled with the use of conventional reinforcement elements. Moreover, the use of an alternative concrete mixture in 3DCP showed a further decrease in the GWP, AP, EP, and FFD impact. Ultimately, the findings in this paper support the advantages of 3DCP technology and recommend the investigation of the development of (i) sustainable printable concrete materials and (ii) novel reinforcement techniques that are suitable for 3DCP rather than adopting conventional reinforcement techniques.

scholarly journals The Environmental Impact of Organizations: A Pilot Test from the Packaging Industry Based on Organizational Life Cycle Assessment

2021 ◽  
Vol 13 (20) ◽  
pp. 11402
Author(s):  
Michela Rimano ◽  
Alberto Simboli ◽  
Raffaella Taddeo ◽  
Michele Del Grosso ◽  
Andrea Raggi
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Global Reporting Initiative ◽  
Practical Implementation ◽  
Pilot Test ◽  
Organizational Life ◽  
Organizational Life Cycle ◽  
Production Site ◽  
Packaging Industry ◽  
Organizational Life Cycle Assessment

This article presents and discusses a pilot test concerning the environmental impacts assessment of organizations. The study was conducted in a production site of a world leading group in the plastic packaging industry. The purpose was to deepen the knowledge of the methodologies currently available and also of the benefits and the difficulties related to their practical implementation. The analysis was conducted in the period 2018–2019, in line with ISO 14044 and ISO/TS 14072 standards and therefore inspired by the organizational life cycle assessment (O-LCA) procedures and standards. The O-LCA test application has proved useful in detecting a number of environmental hotspots usually not detected by other life cycle based approaches, on which the organization should focus to undertake improvement actions, both internal and external (e.g., the category “employees commuting”). The experience gained in the production site under study also led to the replication of the assessment approach to other facilities around the world and for informing corporate sustainability reporting activities (e.g., Global Reporting Initiative and Carbon Disclosure Project reporting standards). Such results can provide methodological and practical insights to both scholars and practitioners in that field of activities.

scholarly journals Comparative Life Cycle Assessment of Multiple Liquid Laundry Detergent Packaging Formats

2020 ◽  
Vol 12 (11) ◽  
pp. 4669
Author(s):  
Saewhan Kim ◽  
Jonghun Park
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Laundry Detergent ◽  
Packaging Material ◽  
Impact Categories ◽  
Packaging System ◽  
Material Production ◽  
Liquid Laundry Detergent ◽  
Packaging Industry ◽  
Comparative Life Cycle Assessment

The emerging packaging industry trend of focusing on packaging sustainability is also occurring in the laundry detergent industry. This study presents a cradle-to-grave comparative life cycle assessment (LCA) of three different packaging systems for liquid laundry detergent: the conventional pourable bottle, polyethylene terephthalate (PET) container with pods, and flexible pouch with pods. The scope of this study included material production, intermediate processes, transportation, and end-of-life phases of each packaging system. The results showed that the conventional pourable bottle made of high-density polyethylene (HDPE) has less environmental impact than the other two packaging systems in all impact categories, except ecotoxicity, due to the higher amount of packaging material required to produce the pods. The rigid PET container with pods impacted the environment in all categories more than the multi-layered flexible pouch containing pods, due primarily to the amount of material production, heavier weight, and intermediate processing using injection molding.

scholarly journals Blockchain Technology in Life Cycle Assessment—New Research Trends

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8292
Author(s):  
Robert Karaszewski ◽  
Paweł Modrzyński ◽  
Gözde Türkmen Müldür ◽  
Jacek Wójcik
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Protection ◽  
Research Trends ◽  
The European Union ◽  
Blockchain Technology ◽  
Innovative Solution ◽  
New Research ◽  
Industry Sectors ◽  
The Impact

Environmental protection is currently one of the key priority areas of the European Union (EU). The search for precise tools to assess the impact of the economy, industry, or the production of individual products or services is crucial for an effective and efficient policy in environmental protection. Blockchain technology, originally related to the financial sector and cryptocurrencies, is an innovative solution that is increasingly being implemented by other areas of the economy and industry sectors. The authors reviewed the literature and based on it presented the possibilities and effects of using blockchain technology in Life Cycle Assessment (LCA), which is in line with the current development trends of this method. The analysis of the research conducted in this area also allowed to present not only the advantages of blockchain in LCA, but also the limitations of this technology and the potential directions of further research.

Pavement Damage Due to Conventional and New Generation of Wide-Base Super Single Tires

2005 ◽  
Vol 33 (4) ◽  
pp. 210-226 ◽  
Author(s):  
I. L. Al-Qadi ◽  
M. A. Elseifi ◽  
P. J. Yoo ◽  
I. Janajreh
Keyword(s):  
Carrying Capacity ◽  
Material Properties ◽  
Three Dimensional ◽  
Fe Analysis ◽  
Load Carrying Capacity ◽  
Inflation Pressure ◽  
3D Finite Element ◽  
Load Carrying ◽  
Pavement Damage ◽  
New Generation

Abstract The objective of this study was to quantify pavement damage due to a conventional (385/65R22.5) and a new generation of wide-base (445/50R22.5) tires using three-dimensional (3D) finite element (FE) analysis. The investigated new generation of wide-base tires has wider treads and greater load-carrying capacity than the conventional wide-base tire. In addition, the contact patch is less sensitive to loading and is especially designed to operate at 690kPa inflation pressure at 121km/hr speed for full load of 151kN tandem axle. The developed FE models simulated the tread sizes and applicable contact pressure for each tread and utilized laboratory-measured pavement material properties. In addition, the models were calibrated and properly validated using field-measured stresses and strains. Comparison was established between the two wide-base tire types and the dual-tire assembly. Results indicated that the 445/50R22.5 wide-base tire would cause more fatigue damage, approximately the same rutting damage and less surface-initiated top-down cracking than the conventional dual-tire assembly. On the other hand, the conventional 385/65R22.5 wide-base tire, which was introduced more than two decades ago, caused the most damage.

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