Special Issue "Advanced Designs of Materials, Machines and Processes in a Circular Economy"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: 31 August 2022.

Special Issue Editors

Dr. Weronika Kruszelnicka
E-Mail Website
Guest Editor
Department of Machines and Technical Systems, Faculty of Mechanical Engineering, University of Science and Technology in Bydgoszcz, 85-796 Bydgoszcz, Poland
Interests: materials grindability; comminution; processing machines; sustainable development; eco-design; energy efficiency; environmental impact
Special Issues and Collections in MDPI journals
Prof. Dr. Andrzej Tomporowski
E-Mail Website
Guest Editor
Department of Machines and Technical Systems, Faculty of Mechanical Engineering, University of Science and Technology in Bydgoszcz, 85-796 Bydgoszcz, Poland
Interests: problems of understanding, describing and increasing the efficiency of complex technical systems occurring in the mechanical engineering, processing, ecological, chemical and energy industries

Special Issue Information

Dear Colleagues,

In light of the Sustainable Development Goals (17 Sustainable Development Goals—SDGs) adopted in the strategic documents of development of European Union countries, activities which lead to increasing the energy and ecological efficiency of technological processes, using materials and managing them rationally and economically, minimizing energy consumption, energy losses and environmental impact and decreasing the amount of production and post-consumer waste are of great importance. One of the concepts of material management in technological processes, from mining to post-consumer waste management, is the idea of a circular economy, which also takes into account the waste hierarchy resulting from the EU Waste Framework Directive. Materials and raw materials are used in almost every technological process both indirectly (machines that were previously made of materials and raw materials) and directly when they are processed or participate as a medium in production processes, and their circulation in the economy should be planned already at the design stage of products. It is important to be ecologically responsible in the design and assessment of the impact of materials and processes at each stage of the life cycle of products (from production, through use to end-of-life management) in order to maximize the environmental harmlessness and energy efficiency of processes and the use of materials while minimizing waste. The mutual relations between the properties of materials (especially processing characteristics) and the design features of machines and process parameters should be taken into account when implementing the concept of a circular economy, because they significantly affect processing efficiency, resource consumption, and the environmental impact of products and processes, as well as the generation of waste and the formation of factory rejects in production.

The purpose of this Special Issue is to disseminate valuable research studies identifying recent problems of the circular economy from the point of view of processing and management of materials, processes and design of processing machines, as well as introducing practical and methodological innovations to improve the efficiency, quality and harmlessness in the life cycle of products, materials and processes, including modeling and research on the properties of materials, machines and processes and their interrelations.

The scope of the Special Issue includes the following topics:

  • Advanced eco-friendly methods of material processing;
  • Modeling and testing the processing properties of materials;
  • Research and modeling of machines and processing processes;
  • Research, evaluation and analysis of the quality, effectiveness and harmlessness of products and processes in the life cycle;
  • Circular economy in the life cycle of products;
  • Analysis and assessment of environmental impacts of materials, machines, processes;
  • Eco-design, design for recycling/circular economy;
  • Recycling, processing, use and management of waste;
  • Identification of relationships between materials, machines and processes.

Dr. Weronika Kruszelnicka
Prof. Dr. Andrzej Tomporowski
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • circular economy
  • waste management
  • waste reduction
  • recycling
  • relations between materials, machines and processes
  • eco-design
  • process efficiency and quality
  • environmental performance of materials, processes, machines and systems

Published Papers (2 papers)

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Research

Article
The Comparative Assessment of Effects on the Power System and Environment of Selected Electric Transport Means in Poland
Materials 2021, 14(16), 4556; https://doi.org/10.3390/ma14164556 - 13 Aug 2021
Viewed by 336
Abstract
Currently, electric vehicles are a rapidly growing alternative to those with combustion engines and can contribute to reduction of CO2 emissions in the transport sector, especially when the energy to power electric motors is predominantly derived from renewable sources. Until now, the [...] Read more.
Currently, electric vehicles are a rapidly growing alternative to those with combustion engines and can contribute to reduction of CO2 emissions in the transport sector, especially when the energy to power electric motors is predominantly derived from renewable sources. Until now, the comparison of environmental impact and influence of electric transport means on the power systems was not fully addressed in the case of Poland. The purpose of the study is to describe, analyse and assess electric vehicles (EV) operation against performance indicators in Poland, especially the influence of electric transport means (ETM) (electric cars, trams, trolley buses and buses) on power system and environment. The influence on the power system was investigated for the Polish National Powers system using the simulation of different scenarios of loads generated by EV charging. The energy demand of the National Power System and daily load variability indices were determined. Based on the data of ETM powers consumption and emissions of energy production, the emissions of harmful gases per one km and per one person were calculated, as well as the financial outlays for energy necessary to drive 1 km per 1 passenger. To assess and compare the environmental impact of the selected ETM life cycle, the life cycle assessment method was used. The results of environmental impacts were determined for selected assessment methods: CML 2 and IPCC 2013 GWP 100. The functional unit in this study is one selected ETM with a service life of 100,000 km. Comparison of trams, trolley buses, buses and electric passenger cars indicates that most beneficial are electric buses which do not need rails or overhead lines, thus investment costs are lower. Full article
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Article
Analysis of the Erosivity of High-Pressure Pulsating Water Jets Produced in the Self-Excited Drill Head
Materials 2021, 14(15), 4165; https://doi.org/10.3390/ma14154165 - 27 Jul 2021
Viewed by 422
Abstract
The dynamic impact of a water jet with a periodically changing structure can be used in various industries. The paper presents a design solution for a self-excited pulse head. This head can be used in mining for drilling holes and breaking rocks. The [...] Read more.
The dynamic impact of a water jet with a periodically changing structure can be used in various industries. The paper presents a design solution for a self-excited pulse head. This head can be used in mining for drilling holes and breaking rocks. The design of the head was developed based on computer simulations, which made it possible to learn the mechanism of impulse shaping inside the head. Tests of the water jet produced in the self-excited pulsation head showed the occurrence of periodic changes in its internal structure and pulsation frequency. A significant increase in the dynamic stream pressures was demonstrated for the head working in the water environment compared to the head working in the air environment For example, for nominal medium and highest pressures, this increase is up to 82%, while for the lowest pressures (10 MPa), the pressure force values increase by 46%. It was found that an increase in the nominal water pressure causes a decrease in the frequency of hydrodynamic pulses in the head operating in both the water and air environment. Full article
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