Faculty of Mechanical Engineering

Permanent URI for this communityhttps://repository.ukim.mk/handle/20.500.12188/13

Browse

Settings

Start date: 2000Subject: search.filters.subject.sustainability

Search Results

Now showing 1 - 6 of 6
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Design for Sustainability: A Review
    (Scientific technical Union of Mechanical Engineering, 2023)
    ;
    Sustainability is topic of great concern since the last decade and still today does not lose of its popularity. Reason for that is that the contemporary way of living is causing great damages to the environment. Designers have been talking about changing the ways in which the products are designed in order to have sustainable product. But, for achieving sustainability many aspects need to be addressed, such as: cultural, social, economical and technological. Nowadays, we believe that these aspects are on higher level and we can talk about sustainable design. Every product development process starts with the design phase and this is why we believe that it is most important for making improvements of the products. In this paper we have the premise that good and appropriate design can have positive influence on the sustainability. In order to check the validity of the premise we are reviewing paper dealing with sustainability, eco design, and engineering materials
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Sustainability and application of life cycle assessment in welded structures
    (SCIENTIFIC TECHNICAL UNION OF MECHANICAL ENGINEERING INDUSTRY-4.0, 2023-01-08)
    ;
    ;
    ;
    Krstevska, Aleksandra
    ;
    Petreski, Martin
    As global environmental impacts have increased, modern societies have expressed a strong interest in implementing sustainable solutions to reduce emissions and use operational energy and natural resources. The construction industry is a leading promoter of significant environmental impacts because it consumes a significant amount of water, energy, and materials. Steel and welding are critical in all three major sectors of the industry: construction, infrastructure, and industry. This paper discusses the significance of meeting sustainable development goals in welded structures and identifies ways that this industry can help to reduce environmental impact and improve employment conditions while achieving economic growth, saving time, and maintaining structural quality. The paper discusses how to optimize various aspects ranging from raw material extraction to construction waste disposal using the life cycle assessment (LCA) methodology. It provides a starting point and demonstrates how these tools can contribute to more sustainable welded structures.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Design for Sustainability: A Review
    (SCIENTIFIC TECHNICAL UNION OF MECHANICAL ENGINEERING INDUSTRY-4.0, 2023-11-08)
    ;
    ustainability is topic of great concern since the last decade and still today does not lose of its popularity. Reason for that is that the contemporary way of living is causing great damages to the environment. Designers have been talking about changing the ways in which the products are designed in order to have sustainable product. But, for achieving sustainability many aspects need to be addressed, such as: cultural, social, economical and technological. Nowadays, we believe that these aspects are on higher level and we can talk about sustainable design. Every product development process starts with the design phase and this is why we believe that it is most important for making improvements of the products. In this paper we have the premise that good and appropriate design can have positive influence on the sustainability. In order to check the validity of the premise we are reviewing paper dealing with sustainability, eco design, and engineering materials.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Sustainability and application of life cycle assessment in welded structures
    (SCIENTIFIC TECHNICAL UNION OF MECHANICAL ENGINEERING INDUSTRY-4.0, 2023-11-08)
    ;
    ;
    ;
    Krstevska, Aleksandra
    ;
    Petreski, Martin
    As global environmental impacts have increased, modern societies have expressed a strong interest in implementing sustainable solutions to reduce emissions and use operational energy and natural resources. The construction industry is a leading promoter of significant environmental impacts because it consumes a significant amount of water, energy, and materials. Steel and welding are critical in all three major sectors of the industry: construction, infrastructure, and industry. This paper discusses the significance of meeting sustainable development goals in welded structures and identifies ways that this industry can help to reduce environmental impact and improve employment conditions while achieving economic growth, saving time, and maintaining structural quality. The paper discusses how to optimize various aspects ranging from raw material extraction to construction waste disposal using the life cycle assessment (LCA) methodology. It provides a starting point and demonstrates how these tools can contribute to more sustainable welded structures
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Sustainability and environmental life cycle analysis of welding processes
    (International Journal of Structural Integrity, Emerald Publishing Limited, 2024-07-29)
    Elisaveta Doncheva
    ;
    Nikola Avramov
    ;
    Aleksandra Krstevska
    ;
    Martin Petreski
    ;
    Jelena Djokikj
    Purpose–Welding is a widely used manufacturing process in many industries. The process consumes a lot of energy and resources, pollutes the environment, and emits gases and fumes into the atmosphere that are dangerous to human health. There are various welding processes, and the suitable welding process is usually chosen based on cost, material, and conditions. Subjectivity is the most significant impediment to selecting an optimal process. As a result, it is critical to develop the appropriate set of criteria, use the best tool and methodology, and collect sufficient data. This study examines the sustainability of welding processes and their environmental impact. Design/methodology/approach– The welding process’s sustainability was examined and discussed in general, considering the technological specifics of each welding process, physical performance, and environmental, economic, and social effects. The study investigates the environmental impact of MMAW, GMAW, and GTAW/GMAW processes through experimental work and LCA methodology. Findings– MMAW is the most environmentally harmful technology, whereas GMAW has the least impact. The GTAW/GMAW process outperformed the other processes in terms of yield stress, but the analyses revealed that it had a greater environmental impact than GMAW. Originality/value– The study provides an environmental impact summary and demonstrates the effects of welding parameters and processes. This gives users an understanding of choosing the best welding technique or making the process more environmentally friendly. These recommendations help policymakers identify hot spots and implement the right plans to achieve more sustainable manufacturing.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    A model for techno-economic optimization and environmental sustainability of the heating structure in an urban area
    (Društvo termičara Srbije, 2017)
    ;
    ;
    ;
    ;
    The objective of the present work is to conduct techno-economic evaluation of different available methods and types of heating in urban areas, having in the forefront the impact on the environment. Several important aspects have been envisaged within the analysis: technical feasibility, investment costs, operating and maintenance costs, as well as the environmental impact assessment. The main goal of the work is to provide reliable information and indicators for selection of optimal sustainable type of heating in the city of Skopje as a major urban area. The actual situation in terms of air pollution in Skopje has been briefly outlined. The current situation regarding the ways of thermal energy supply for heating in Skopje is presented. A complex mathematical model has been applied for the purposes of a comparative analysis between different heating methods, that takes into consideration the necessary techno-economic and environmental aspects of the heating methods and systems. Furthermore, the model has been adapted and applied as for the conditions of the city of Skopje, offering a strong guidelines for selection of the best way of heating in different parts of the city, depending on the local urban, infrastructural, technical and environmental conditions. The results show a significant advantage of the central heating system in relation to the other types of heating, from engineering, financial and environmental viewpoint.