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Technical systems are increasingly complex and interconnected, forming higher level System of Systems (SoS). SoS provide emergent functions which are greater or different than the sum of the functions of their constituent systems. To be able to assess the environmental impact of an SoS, a functional unit is required. Therefore, we discuss the opportunities of synthetic emergence to serve as functional unit of SoS. A deep understanding of emergent properties and the function of SoS is given. Finally, a comprehensive discussion uses the cases of smart energy grids and urban symbiotic food production systems for initial reflections about the concept.
Mark Mennenga; Lennart Büth; Felipe Cerdas; Christoph Herrmann. Synthetic emergence as a functional unit for the environmental assessment of a system of systems. Procedia CIRP 2020, 90, 393 -398.
AMA StyleMark Mennenga, Lennart Büth, Felipe Cerdas, Christoph Herrmann. Synthetic emergence as a functional unit for the environmental assessment of a system of systems. Procedia CIRP. 2020; 90 ():393-398.
Chicago/Turabian StyleMark Mennenga; Lennart Büth; Felipe Cerdas; Christoph Herrmann. 2020. "Synthetic emergence as a functional unit for the environmental assessment of a system of systems." Procedia CIRP 90, no. : 393-398.
Driven by concerns regarding the sustainability of aviation and the continued growth of air traffic, increasing interest is given to emerging aircraft technologies. Although new technologies, such as battery-electric propulsion systems, have the potential to minimise in-flight emissions and noise, environmental burdens are possibly shifted to other stages of the aircraft’s life cycle, and new socio-economic challenges may arise. Therefore, a life-cycle-oriented sustainability assessment is required to identify these hotspots and problem shifts and to derive recommendations for action for aircraft development at an early stage. This paper proposes a framework for the modelling and assessment of future aircraft technologies and provides an overview of the challenges and available methods and tools in this field. A structured search and screening process is used to determine which aspects of the proposed framework are already addressed in the scientific literature and in which areas research is still needed. For this purpose, a total of 66 related articles are identified and systematically analysed. Firstly, an overview of statistics of papers dealing with life-cycle-oriented analysis of conventional and emerging aircraft propulsion systems is given, classifying them according to the technologies considered, the sustainability dimensions and indicators investigated, and the assessment methods applied. Secondly, a detailed analysis of the articles is conducted to derive answers to the defined research questions. It illustrates that the assessment of environmental aspects of alternative fuels is a dominating research theme, while novel approaches that integrate socio-economic aspects and broaden the scope to battery-powered, fuel-cell-based, or hybrid-electric aircraft are emerging. It also provides insights by what extent future aviation technologies can contribute to more sustainable and energy-efficient aviation. The findings underline the need to harmonise existing methods into an integrated modelling and assessment approach that considers the specifics of upcoming technological developments in aviation.
Sofia Pinheiro Melo; Alexander Barke; Felipe Cerdas; Christian Thies; Mark Mennenga; Thomas S. Spengler; Christoph Herrmann. Sustainability Assessment and Engineering of Emerging Aircraft Technologies—Challenges, Methods and Tools. Sustainability 2020, 12, 5663 .
AMA StyleSofia Pinheiro Melo, Alexander Barke, Felipe Cerdas, Christian Thies, Mark Mennenga, Thomas S. Spengler, Christoph Herrmann. Sustainability Assessment and Engineering of Emerging Aircraft Technologies—Challenges, Methods and Tools. Sustainability. 2020; 12 (14):5663.
Chicago/Turabian StyleSofia Pinheiro Melo; Alexander Barke; Felipe Cerdas; Christian Thies; Mark Mennenga; Thomas S. Spengler; Christoph Herrmann. 2020. "Sustainability Assessment and Engineering of Emerging Aircraft Technologies—Challenges, Methods and Tools." Sustainability 12, no. 14: 5663.
Increased digitalization leads to an overlap of technical systems, their surrounding environment and their embedded systems. The concept System of Systems (SoS) progressively emerges, offering the potential to contribute to sustainable development. A SoS bundles the capabilities and resources of its subsystems and, through intelligent collaboration, offers more functionality than the sum of its sub-systems. The current research on SoS is rather fragmented and there is still an open discussion on basic taxonomic and ontological issues. One important topic being discussed is the applicability of SoS Engineering (SoSE) to other related research disciplines. In this paper, we examine the interrelations of sustainable manufacturing, Life Cycle Engineering (LCE) and SoSE. Therefore, we provide a typology and a process-oriented framework for the integration of SoSE as a complementary discipline within the context of sustainable manufacturing and LCE.
Mark Mennenga; Felipe Cerdas; Sebastian Thiede; Christoph Herrmann. Exploring the Opportunities of System of Systems Engineering to Complement Sustainable Manufacturing and Life Cycle Engineering. Procedia CIRP 2019, 80, 637 -642.
AMA StyleMark Mennenga, Felipe Cerdas, Sebastian Thiede, Christoph Herrmann. Exploring the Opportunities of System of Systems Engineering to Complement Sustainable Manufacturing and Life Cycle Engineering. Procedia CIRP. 2019; 80 ():637-642.
Chicago/Turabian StyleMark Mennenga; Felipe Cerdas; Sebastian Thiede; Christoph Herrmann. 2019. "Exploring the Opportunities of System of Systems Engineering to Complement Sustainable Manufacturing and Life Cycle Engineering." Procedia CIRP 80, no. : 637-642.
Corporate vehicle fleet owners face new challenges through the introduction of electric vehicles to the automotive market. A fundamental understanding of the fleet tasks and a life cycle oriented evaluation are a prerequisite for the successful integration of alternatively powered vehicle concepts into corporate fleets. In order to enable fleet managers to respond to the arising challenges, a workshop based decision methodology for integrating electric vehicles into corporate fleets has been developed. Throughout the workshop, relevant aspects in life cycle oriented fleet planning are introduced to the participants, which help them assessing the current usage of the fleet and developing alternatives. A simulation based decision support system is used for evaluating the viability of alternative fleet configurations and deriving recommendations. The developed methodology can be applied to all kinds of fleet sizes. However, it was especially developed for small and medium sized companies. The methodology is presented within a case study for the fleet of a local energy supplier.
Mark Stephan Mennenga; Antal Dér; Christoph Herrmann. Workshop Based Decision Support Methodology for Integrating Electric Vehicles into Corporate Fleets. Sustainable Production, Life Cycle Engineering and Management 2018, 81 -103.
AMA StyleMark Stephan Mennenga, Antal Dér, Christoph Herrmann. Workshop Based Decision Support Methodology for Integrating Electric Vehicles into Corporate Fleets. Sustainable Production, Life Cycle Engineering and Management. 2018; ():81-103.
Chicago/Turabian StyleMark Stephan Mennenga; Antal Dér; Christoph Herrmann. 2018. "Workshop Based Decision Support Methodology for Integrating Electric Vehicles into Corporate Fleets." Sustainable Production, Life Cycle Engineering and Management , no. : 81-103.
Mobility is fundamental for trade and business, for science, culture and everyday life of people. An efficient transport system enables economic growth, promotes social exchange, creates more freedom and independence for each individual and thus makes a significant contribution to the quality of life. The planning and design of future mobility is associated with a multitude of fundamental challenges. Megatrends such as individualization tendencies, urbanization and aging of societies have a strong influence on future mobility concepts. In addition, technological developments like eco-efficient lightweight structures, electrification and digitalization and, last but not least, new business models on product-service systems and sharing economy lead to new vehicle and mobility concepts.
Christoph Herrmann; Mark Stephan Mennenga; Stefan Böhme. Research for Sustainable Mobility—Fleets Go Green. Sustainable Production, Life Cycle Engineering and Management 2018, 1 -5.
AMA StyleChristoph Herrmann, Mark Stephan Mennenga, Stefan Böhme. Research for Sustainable Mobility—Fleets Go Green. Sustainable Production, Life Cycle Engineering and Management. 2018; ():1-5.
Chicago/Turabian StyleChristoph Herrmann; Mark Stephan Mennenga; Stefan Böhme. 2018. "Research for Sustainable Mobility—Fleets Go Green." Sustainable Production, Life Cycle Engineering and Management , no. : 1-5.
Electric vehicles have the potential to reduce emissions from road transport, while releasing no local emissions during the use phase. The utilization of electric vehicles in fleet operations offers an excellent opportunity for the rapid diffusion of electric vehicles into the market due to the fast turnover rate of fleet vehicles. However, further research is necessary to examine the utilization of electric vehicles in daily use in order to recognize drawbacks and to determine further improvement potentials. The project Fleets Go Green aims to study the environmental assessment of electric vehicles in fleet operations. Fleets Go Green consists of different research modules, which investigate the integrated vehicle, usage, and power supply system behavior. The total energy requirements of fleet vehicle operations with different topologies over the use phase are determined in Module 1, while the user acceptance both from fleet owners and from drivers perspectives are researched in Module 2. Module 3 aims to integrate the electric vehicle fleets in the electrical distribution system and maximize the integration of renewable energy sources in their supply. The environmental assessment of fleets is studied in Module 4. Furthermore, all findings are integrated into a decision support system for the ecologically oriented fleet management and planning in Module 5.
Christoph Herrmann; Michael Bodmann; Stefan Böhme; Antal Dér; Selin Erkisi-Arici; Ferit Küҫükay; Michael Kurrat; Daniela Mau; Mark Stephan Mennenga; Jan Mummel; Marcel Sander; David Woisetschläger. Recommendations from Fleets Go Green. Sustainable Production, Life Cycle Engineering and Management 2018, 105 -110.
AMA StyleChristoph Herrmann, Michael Bodmann, Stefan Böhme, Antal Dér, Selin Erkisi-Arici, Ferit Küҫükay, Michael Kurrat, Daniela Mau, Mark Stephan Mennenga, Jan Mummel, Marcel Sander, David Woisetschläger. Recommendations from Fleets Go Green. Sustainable Production, Life Cycle Engineering and Management. 2018; ():105-110.
Chicago/Turabian StyleChristoph Herrmann; Michael Bodmann; Stefan Böhme; Antal Dér; Selin Erkisi-Arici; Ferit Küҫükay; Michael Kurrat; Daniela Mau; Mark Stephan Mennenga; Jan Mummel; Marcel Sander; David Woisetschläger. 2018. "Recommendations from Fleets Go Green." Sustainable Production, Life Cycle Engineering and Management , no. : 105-110.
Flottenanwendungen bieten hervorragende Chancen zur schnellen und erfolgreichen Diffusion von Elektrofahrzeugen in den Markt. Rund 60% der jährlichen PKW-Neuzulassungen in Deutschland entfallen auf Unternehmen und Selbständige [1]. Nach der gewerblichen Erstnutzung werden die Fahrzeuge in der Regel nach wenigen Jahren in den Gebrauchtwagenmarkt überführt.
Mark Mennenga; P. Egede; J. Mummel; M. Sander; C. Herrmann; M. Kurrat; F. Küςükay; Michael Bodmann. Cyber-Physischer Ansatz zur Planung von Elektroflotten. Nationale und internationale Trends in der Mobilität 2016, 127 -145.
AMA StyleMark Mennenga, P. Egede, J. Mummel, M. Sander, C. Herrmann, M. Kurrat, F. Küςükay, Michael Bodmann. Cyber-Physischer Ansatz zur Planung von Elektroflotten. Nationale und internationale Trends in der Mobilität. 2016; ():127-145.
Chicago/Turabian StyleMark Mennenga; P. Egede; J. Mummel; M. Sander; C. Herrmann; M. Kurrat; F. Küςükay; Michael Bodmann. 2016. "Cyber-Physischer Ansatz zur Planung von Elektroflotten." Nationale und internationale Trends in der Mobilität , no. : 127-145.