Design

The design of gear pumps causes gap flows, which counteract efforts to achieve exact dosing. However, due to the complex relationships between pressure, temperature, manufacturing tolerances and the material properties of the pumped medium, these gap flows cannot be reliably described in real time using physical equation systems. By using new algorithms and artificial neural networks, it was possible to solve this problem and replace a cost-intensive flow measurement method at the same time. This new approach has been tested on a pilot plant scale, and has already demonstrated that it can achieve the accuracy of a classic flow meter, while at the same time significantly decreasing the response time and increasing the application range of the dosing system.

This article describes how companies can accelerate the implementation of the United Nations Sustainable Development Goals (SDGs). As a guideline, we propose the concept of corporate purpose. By focusing on the added value generated for stakeholders, a corporate purpose has a meaningful effect and provides orientation. As part of our research, a self-assessment was developed, which makes the status quo of corporate purpose in companies measurable.

Correctly recycling obsolete refrigeration devices plays an important role in environmental and climate protection efforts. Recycling plants are subject to regular audits to ensure their compliance with strict environmental regulations. However, the collection of audit-related data is a challenging and time-consuming task, as it is usually done manually and is prone to errors. One solution for more sustainable and efficient monitoring is to automate digital data collection using sensors and artificial intelligence. This enables a direct estimate of the expected level of pollutants. This paves the way for continuous performance monitoring and efficient management of refrigeration appliance recycling plants.

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.

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.

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.

Industrial manufacturing offers a wide range of opportunities for a more ecologically compatible and socially just organization. Sustainability-oriented HR management can competently support industrial manufacturing companies in the design and implementation of sustainable manufacturing. It is important to integrate ecological, social and economic requirements into the respective areas of responsibility. In addition, employees must be motivated and qualified to adopt environmentally friendly working practices in order to be able to implement sustainable manufacturing in practice. Sustainable incentive systems and employee-oriented personnel management must also be taken into account.