07 Fakultät Konstruktions-, Produktions- und Fahrzeugtechnik

Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/8

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    Valuing the invaluable(?) : a framework to facilitate stakeholder engagement in the planning of nature-based solutions
    (2021) Mok, Sophie; Mačiulytė, Ernesta; Bult, Pieter Hein; Hawxwell, Tom
    Nature-based solutions (NBS) have emerged as an important concept to build climate resilience in cities whilst providing a wide range of ecological, economic, and social co-benefits. With the ambition of increasing NBS uptake, diverse actors have been developing means to demonstrate and prove these benefits. However, the multifunctionality, the different types of benefits provided, and the context-specificity make it difficult to capture and communicate their overall value. In this paper, a value-based framework is presented that allows for structured navigation through these issues with the goal of identifying key values and engaging beneficiaries from the public, private, and civil society sector in the development of NBS. Applied methods such as focus groups, interviews, and surveys were used to assess different framework components and their interlinkages, as well as to test its applicability in urban planning. Results suggest that more specialized “hard facts” might be needed to actually attract larger investments of specific actors. However, the softer and more holistic approach could inspire and support the forming of alliances amongst a wider range of urban stakeholders and the prioritization of specific benefits for further assessment. Consequently, it is argued that both hard and soft approaches to nature valuation will be necessary to further promote and drive the uptake of NBS in cities.
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    Leitfaden zur Implementierung intelligenter Energiesysteme in Wohnquartieren
    (Stuttgart : Universität Stuttgart, Institut für Arbeitswissenschaft und Technologiemanagement, 2019) Klausmann, Florian; Göhler, Georg; Endriss, Felix
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    Hydrogen micro-systems : households’ preferences and economic futility
    (2024) Klingler, Anna-Lena; Dörr, Julian
    This study examines the potential market for residential hydrogen systems in light of the trends towards digitalisation and environmental awareness. Based on a survey of 350 participants, the results indicate that although energy experts are sceptical about the benefits of residential hydrogen systems due to their high costs, households are highly interested in this technology. The sample shows a willingness to invest in hydrogen applications, with some households willing to pay an average of 24% more. An economic assessment compared the cost of a residential hydrogen system with conventional domestic energy systems, revealing significant additional costs for potential buyers interested in hydrogen applications.
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    Reliability as a key driver for a sustainable design of adaptive load-bearing structures
    (2022) Efinger, Dshamil; Ostertag, Andreas; Dazer, Martin; Borschewski, David; Albrecht, Stefan; Bertsche, Bernd
    The consumption of construction materials and the pollution caused by their production can be reduced by the use of reliable adaptive load-bearing structures. Adaptive load-bearing structures are able to adapt to different load cases by specifically manipulating internal stresses using actuators installed in the structure. One main aspect of quality is reliability. A verification of reliability, and thus the safety of conventional structures, was a design issue. When it comes to adaptive load-bearing structures, the material savings reduce the stiffness of the structure, whereby integrated actuators with sensors and a control take over the stiffening. This article explains why the conventional design process is not sufficient for adaptive load-bearing structures and proposes a method for demonstrating improved reliability and environmental sustainability. For this purpose, an exemplary adaptive load-bearing structure is introduced. A linear elastic model, simulating tension in the elements of the adaptive load-bearing structure, supports the analysis. By means of a representative local load-spectrum, the operating life is estimated based on Woehler curves given by the Eurocode for the critical notches. Environmental sustainability is increased by including reliability and sustainability in design. For an exemplary high-rise adaptive load-bearing structure, this increase is more than 50%.
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    Kosten-Effektivitäts-Analyse von Maßnahmen zur Reduzierung der SO2- und NOx-Emissionen in Ballungsräumen am Beispiel der Stadt Stuttgart
    (1987) Voß, Alfred; Friedrich, Rainer; Boysen, Barbara; Mattis, Marcus; Bach, Heinz; Claus, Guenther; Bäßler, Rudolf; Essers, Ulf; Greiner, Rolf; Besser, Peter
    Kosten und Effektivität verschiedener Maßnahmen zur Reduzierung von SO2- und NOx-Emissionen in großen Städten werden am Beispiel der Stadt Stuttgart untersucht. Dazu werden SO2- und NOx-Emissionen bis zum Jahr 2000 in Stuttgart in allen Sektoren stadtteilweise berechnet. Anschließend werden Maßnahmen zur Minderung von SO2- und NOx- Emissionen für die verschiedenen Emittentengruppen (Kraftwerke, sonstige genehmigungsbedürftige Anlagen, nicht genehmigungsbedürftige Anlagen, Verkehr) identifiziert und analysiert. Ihre Anwendung wird simuliert und die dabei entstehenden Kosten und Emissionsminderungen ermittelt. Aus den Ergebnissen werden Empfehlungen für eine möglichst effiziente Umweltpolitik abgeleitet.
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    Metal sourcing for a sustainable future
    (2022) Renn, Ortwin; Gloaguen, Richard; Benighaus, Christina; Ajjabou, Leila; Benighaus, Ludger; Del Rio, Virginia; Gómez, Javier; Kauppi, Sari; Keßelring, Michaela; Kirsch, Moritz; Komac, Marko; Kotilainen, Juha; Kozlovskaya, Elena; Lyytimaki, Jari; McCallum, Cathryn; Mononen, Tuija; Nevalainen, Jouni; Peltonen, Lasse; Ranta, Jukka-Pekka; Ruiz, Stephane; Russill, Jon; Wagner, Frank
    Drastic measures are required to meet the standards of the Paris Agreement and limit the increase of global average temperatures well below 2°C compared to pre-industrial levels. Mining activities are typically considered as unsustainable but, at the same time, metals such as cobalt and lithium are essential to sustain the energy transition. Several sustainability goals defined by the United Nations (UN) require large quantities of raw materials. Exploration and extractives activities are required in order to contribute to meeting sustainability standards. Future sourcing of metals will need to implement procedures that go well beyond current ecological, economic, and social requirements and practices. In this paper we assess the usual sustainability criteria and how they apply to the extractives sector. Sustainability can only be achieved if one accepts that the natural capital can be substituted by other forms of capital (so called weak concept of sustainability). Sourcing the raw materials increasingly demanded by our societies will need transparent and inclusive stakeholder participation as well as a holistic understanding of the impact of extractives activities to reach this weak sustainability status. Our analysis shows that the sustainability of mining cannot be reached without harmonized political instruments and investment policies that take the three pillars of environmental, economic, and social sustainability as a major priority.
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    Transformationsmodell für nachhaltige Stadtsysteme : Entwicklung und Erprobung eines systemischen Technologiemanagementansatzes für Städte
    (Stuttgart : Fraunhofer Verlag, 2019) Radecki, Alanus von; Spath, Dieter (Univ.-Prof. Dr.-Ing. Dr.-Ing. E.h. Dr. h.c.)
    In der vorliegenden Dissertation wird ein neues Transformationsmodell für eine nachhaltige Entwicklung von Städten entwickelt und erprobt - das „Morgenstadt-Modell“. Dabei wird zunächst auf Basis der Analyse von sechs globalen Vorreiterstädten ein Modell erstellt, welches die Nachhaltigkeitsperformanz von Städten misst und als Ausgangspunkt für die Entwicklung städtischer Nachhaltigkeitsstrategien dient. Dieses Modell wird anschließend anhand der tschechischen Hauptstadt Prag erprobt und hinsichtlich seiner Tauglichkeit bewertet.
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    Kosten-Effektivitäts-Analyse von Maßnahmen zur Reduzierung der SO2- und NOx-Emissionen in Ballungsräumen am Beispiel der Stadt Stuttgart
    (1986) Bäßler, Rudolf; Boysen, Barbara; Friedrich, Rainer; Mattis, Marcus; Voß, Alfred
    Ziel des Projektes ist es, Kosten und Effektivitaä verschiedener Maßnahmen zur Reduzierung der S02- und NOx-Emissionen in Ballungsräumen zu untersuchen. Als Untersuchungsgebiet wurde die Stadt Stuttgart ausgewählt. Zunächst werden verschiedene Minderungsmaßnahmen ausgewählt und deren Eigenschaften ermittelt. Außerdem werden die derzeitigen S02- und NOx-Emissionen in Stuttgart stadtteilweise berechnet. Anschliesend wird ein Szenario der möglichen zukünftigen Entwicklung der Emissionen bis 1995 erstellt, dabei werden die derzeit geplanten Urnweltschutzmaßnahmen berücksichtigt. Im nächsten Schritt wird die Anwendung verschiedener zusätzlicher Emissionsminderungsmaßnahmen simuliert. Die Kosten und Emissionsminderungen dieser Maßnahmen werden untersucht. Aus den Ergebnissen werden Empfehlungen für eine möglichst effiziente Umweltpolitik abgeleitet.