Nachhaltigkeit

In order to exploit the full potential of the circular economy, companies need to develop holistic solutions and rethink their business models. With this in mind, a summer school entitled Circular Economy was organized by Merseburg University's start-up service in September 2023 with the aim of developing innovative ideas for new business models with a focus on circular models. Current trends in materials science were used as conceivable scenarios for circular forms of economic activity in the idea generation process. Entrepreneurship is an interface function here. Entrepreneurs not only want to run companies, they also want to bring about change with new products, services and business processes.

The flow of materials along regional and global value chains has far-reaching environmental, economic and social effects. The sustainability profile of materials should therefore play a central role in management. Adapting material flows to adhere to sustainable principles requires an integrated approach that includes all areas of the company. The decisive factor is that sustainable materials management ultimately requires the entire life cycle of a product to be taken into account – from design and produc- tion through to sales and aftercare measures.

Small batch sizes are a necessity in the textile industry due to the increasing diversification of products and end applications as well as short-term orders in networked value chains. At the same time, this involves a high level of configuration, planning, preparation and im-plementation. The costs increase disproportionately and are usually not directly quantifia-ble. In addition, sustainability considerations are now increasingly required. This article de-scribes an SME-suitable, simulation-based methodology for analyzing and configuring tex-tile manufacturing systems with regard to ecological and economic sustainability for small batch sizes in textile manufacturing and illustrates this using textile manufacturing in the weaving industry as an example.

More than 99% of German companies are small and medium-sized enterprises (SMEs), which therefore represent an important part of industrial supply chains. New regulations are increasing the pressure on companies to create transparency along the supply chain so that the role of SMEs is also coming into focus. However, they are often confronted with limited financial and human resources. Based on a quantitative survey and a literature review, this article deals with the question of what SME-friendly approaches could look like.

In additive manufacturing – which is also known as 3D printing – plastic waste is produced, for example in the form of required support structures or faulty prints. One option for resource recirculation in additive manufacturing is direct use in a pellet 3D printer that incorporates fused granulate fabrication (FGF). The elimination of the filament production process step reduces the manufacturing time and the energy required for recirculation.

The aviation industry faces significant challenges in reducing the environmental impact of global air traffic. This results in the goal of net zero emissions by 2050. Innovations and new technologies must be implemented along the entire value chain to achieve this goal. In this context, investments and decisions have to be evaluated based on their potential to reduce environmental impacts. One method for operationalizing these issues is the life cycle assessment framework. This paper presents an analytical decision model for the potential assessment of LCA at aircraft manufacturers. The basis of the model is the derivation of criteria for the assessment and the identification of use cases along the value creation process. Based on the decision model, first concrete application scenarios are identified. (Only in German)

The impact of rapid technological change in a competitive global market is reaching small and medium-sized enterprises (SME) at an increasing rate; digitalization increases the interconnectedness among manufacturers, products and customers. Within this context, SME need to improve both their business processes and their technological capabilities in order to achieve internal and external sustainability goals, to be successful in the marketplace and to meet customer needs. This article discusses the opportunities of digitalization to improve sustainability by presenting two use cases from SME.