Energy Efficiency

Systematically Planning Vertical Factories

Systematically Planning Vertical Factories

Developing factory types as a foundation for intelligent planning support
Nikolaus Kremslehner ORCID Icon, Sebastian Schlund ORCID Icon, Wilfried Sihn
Vertical factories reduce land use and harness the advantages of urban production. However, their multi-story structure significantly increases planning complexity. To counter such effects, this paper presents a typology that combines proven solutions for recurring challenges in the planning and operation of vertical factories. Relevant characteristics were examined using real-world case studies and structured within a morphological framework. This framework was consolidated into factory types that provide guidance for conceptual planning and serve as the foundation for intelligent planning support.
Industry 4.0 Science | Volume 42 | 2026 | Edition 5 | Pages 68-76 | DOI 10.30844/I4SE.26.5.6
Loam Construction and Wooden Shelving

Loam Construction and Wooden Shelving

A contribution to sustainability in warehouse logistics
Viviano De Giacomo ORCID Icon, Nathalie Fritsch ORCID Icon, Jakob Kennert ORCID Icon, Dieter Uckelmann ORCID Icon
This study examines the contribution of natural building materials, in particular loam and wood, to the sustainable development of logistics infrastructure, assessing ecological, economic, and technical dimensions across the entire life cycle. Potentials, restrictions, and supportive framework conditions are identified based on literature analyses and expert interviews. Wood proves to be technically mature and ecologically advantageous, especially in high rack construction, while loam offers high potential for energy- and resource-efficient construction. The study concludes with recommendations for research, policy, and practice to establish circular construction methods in logistics.
Industry 4.0 Science | Volume 41 | Edition 6 | Pages 82-89
Electric Trucks in Intermodal Terminal Pre- and Post-Carriage

Electric Trucks in Intermodal Terminal Pre- and Post-Carriage

Impact on terminal processes in combined road-rail freight transport
Ralf Elbert, Samira Ghaneian Sebdani ORCID Icon
Electric trucks (e-trucks) play an important role in reducing CO₂ emissions especially on short distances in pre and post-carriage in combined road-rail freight transport (CT). Using the example of a CT terminal, this article highlights the logistical and energy challenges involved in using e-trucks to establish suitable charging infrastructures and ensuring a reliable power supply.
Industry 4.0 Science | Volume 41 | Edition 6 | Pages 70-77
Enabling the Future of Manufacturing with Digital Twins

Enabling the Future of Manufacturing with Digital Twins

Opportunities and obstacles
Javad Ghofrani, Darian Lemke, Tassilo Söldner
Digital twins connect physical and digital systems, furthering efficiency, enabling predictive maintenance, and allowing the production of more customized products. Despite these advantages, challenges such as high costs, data synchronization, and security risks hinder widespread adoption. This article explores the potential of digital twins and examines key barriers to integration and implementation, also considering some industrial applications including additive manufacturing as a relevant use case.
Industry 4.0 Science | Volume 41 | Edition 3 | Pages 72-81
Open-Source and Cost-Effective Digital Twin

Open-Source and Cost-Effective Digital Twin

A case study with two weeks to succeed
Shantall Cisneros Saldana ORCID Icon, Sonali Pratap, Parth Punekar, Sampat Acharya, Heike Markus ORCID Icon
Digital Twin (DT) adoption remains a challenge due to high costs, complexity and lack of skills. This study proposes a cost-effective, TRL 5-validated DT model that can be built using open-source and office suite tools within just two weeks. Integrating real-time sensor data, predictive analytics, anomaly detection and notification, the model improves efficiency and sustainability in agriculture. Even with cloud service constraints, the system delivers a 7.76% average relative error and rapid, automated notifications. The findings show how open-source in combination with common commercial tools technologies can make advanced digital tools accessible to all, creating scalable, human-centered, and affordable solutions in line with Industry 5.0 principles.
Industry 4.0 Science | Volume 41 | Edition 3 | Pages 62-68 | DOI 10.30844/I4SE.25.3.62
Turning in Circles

Turning in Circles

Exploiting the potential of circular economy in wind turbine operations
Sebastian Schlund ORCID Icon, Stefanie Eisl
The decarbonization of the energy sector is crucial for a climate-neutral EU, as a large proportion of greenhouse gas emissions come from energy use. Especially the wind energy sector, with its high material costs, faces major challenges. The rapid expansion of wind energy requires innovative solutions to establish sustainable End-of-Life (EoL) management practices. A digital decision-making framework for sustainable EoL strategies is therefore extremely useful.
Industry 4.0 Science | Volume 40 | 2024 | Edition 5 | Pages 90-98 | DOI 10.30844/I4SE.24.5.90
Digital Solutions for SMEs’ Circularity Transition

Digital Solutions for SMEs’ Circularity Transition

Examples from the textile industry
Markus Winkler, Dieter Stellmach, Guido Grau, Marcus Winkler, Meike Tilebein ORCID Icon
The EU Strategy for sustainable and circular textiles aims to reduce the industry’s environmental impact while at the same time increasing its competitiveness. In this transition towards circularity, firms in the highly fragmented textile value chains need solutions that help overcome barriers and provide support. This paper presents digital solutions that are particularly suited for SMEs and that have been developed with public funding. It aims at encouraging SMEs, not only from the textile industry, to specify their individual transition paths towards circularity and to use digitalization to foster implementation.
Industry 4.0 Science | Volume 40 | 2024 | Edition 5 | Pages 26-33 | DOI 10.30844/I4SE.24.5.26
Double Transformation in Mechanical and Plant Engineering

Double Transformation in Mechanical and Plant Engineering

Digitalization and sustainability for one-of-a-kind and small-batch manufacturers
Christoph Laroque ORCID Icon, Deike Gliem ORCID Icon, Sigrid Wenzel ORCID Icon
A decisive competitive factor for smaller and medium-sized manufacturers of one-of-a-kind and small batches is their products’ timely completion, delivery and commissioning. Precise logistics planning is just as important as production control. However, the processes are often characterized by uncertainties, e.g. due to local conditions at the customer or cooperation with suppliers. Digital shadows for data evaluation in real time offer a convincing solution.
Industry 4.0 Science | Volume 40 | 2024 | Edition 5 | Pages 10-17 | DOI 10.30844/I4SE.24.5.10
Waste Heat Utilization through Thermal Cross-linking

Waste Heat Utilization through Thermal Cross-linking

A software solution for the development of optimized industrial energy concepts
Lukas Theisinger, Fabian Borst, Michael Georg Frank, Matthias Weigold, Andreas Maußner
The supply of production processes and buildings with thermal energy represents a significant share of the total energy demand of an industrial site. The use of industrial waste heat offers a way to reduce the external purchase of final energy. Due to the lack of transparency and the complexity of such measures, their potential often remains untapped. In the research project ETA im Bestand a user-oriented software solution was prototypically implemented. The software solution enables the development and evaluation of industrial energy concepts. Approaches from the research area of operations research and dynamic simulation are applied.
Industrie 4.0 Management | Volume 39 | 2023 | Edition 5 | Pages 9-12
The Dilemma of Compressed Air and Leaks

The Dilemma of Compressed Air and Leaks

Lisa Dawel, Alexandra Pehlken
Due to the sharp rise in energy prices, compressed air, or compressor performance and its power consumption, are once again in the foreground as part of energy management. Due to the fact, that compressed air often escapes via leaks and these are difficult to localize or measure, a niche topic is becoming very noteworthy again. Automated leak detection can determine the need for repairs and help increase energy efficiency. It is important that not only leaks are detected, but that the extent of the leaks can also be quantified. A cost-effective method of detecting leaks is energy monitoring of the air compressor. Continuous monitoring and evaluation of the energy data means that you can react quickly.
Industrie 4.0 Management | Volume 39 | 2023 | Edition 2 | Pages 33-35 | DOI 10.30844/IM_23-2_33-35
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