-
09/10/2025, 10:45Critical Raw Materials (including possible toxicity and environmental impact)Abstract TEC2ZERO
Probelms of Global Circular Economy linked to socio-ethical justice and challenges for science will be critically discussed from a global perspective.
Go to contribution page -
09/10/2025, 11:05
Climate change presents unprecedented global challenges, urging a rethink of how resources, particularly energy, are harvested. Renewable energies like photovoltaics (PV) are probably the most sustainable energy sources, relying on the sun’s free energy. However, PV remains underutilized, especially in developing countries, where infrastructure costs and maintenance pose significant barriers....
Go to contribution page -
09/10/2025, 12:00Critical Raw Materials (including possible toxicity and environmental impact)Abstract TEC2ZERO
The rare earth elements (REEs) are among the most crucial metals for high-tech and green energy applications and are considered critical raw materials. For example, neodymium (Nd) and dysprosium (Dy) are major constituents of wind turbines, with as much as several hundred kilograms in a single wind turbine magnet. The progress of high-tech applications and E-mobility will increase the global...
Go to contribution page -
09/10/2025, 12:20
Weißer Wasserstoff, also natürlich entstandener Wasserstoff, gewinnt zunehmend an Bedeutung als bislang unterschätzte und potenziell disruptive Energiequelle im globalen Energiemix. Er entsteht durch geochemische Prozesse wie Serpentinisierung tief in der Erdkruste und sammelt sich über geologische Zeiträume in unterirdischen Reservoiren an. Diese Form der natürlichen Wasserstofferzeugung...
Go to contribution page -
09/10/2025, 12:40Critical Raw Materials (including possible toxicity and environmental impact)Abstract TEC2ZERO
Polymers are important for humanity from daily life usage to advanced science and technology. Considering the degradation rate of polymers in nature and associated difficulties in recycling monomers by depolymerization, the widespread polymer usage poses a significant environmental hazard generating waste in a linear economy. Thereupon, the widespread use of self-immolative polymers,...
Go to contribution page -
09/10/2025, 15:45
The urgent need to replace fossil-based resources with sustainable alternatives calls for innovative strategies in biomass valorization. Among these, the efficient use of lignocellulosic biomass has proven particularly promising. Although a complete substitution of fossil fuels is unlikely, biomass can serve as a viable and renewable feedstock for a significant fraction of chemical production....
Go to contribution page -
09/10/2025, 16:05
This study explores the upcycling of grinding swarf, a by-product of subtractive machining, into semi-finished cast products by recovering silicon carbide (SiC) and aluminum oxide (Al₂O₃) abrasives and using them as alloying additions. Two cold-work tool steels, X153CrMoV12 (1.2379) and 80CrV2 (1.2235), were modified, with emphasis on X153CrMoV12 due to its higher content of critical alloying...
Go to contribution page -
09/10/2025, 16:25
Hypervalent iodine reagents offer powerful oxidative capabilities and have emerged as attractive, metal-free alternatives to traditional oxidation methods that often rely on toxic metals. However, their high-energy character can raise significant safety concerns, especially in traditional batch processes. In response to these challenges, we have developed a series of continuous flow...
Go to contribution page -
09/10/2025, 16:45
Multi-criteria decision-making for product selection in construction is becoming increasingly important, as purely technical and economic evaluations can no longer capture the complex demands of sustainability. In particular, ecological and socio-cultural criteria exert a decisive influence on the life-cycle assessment (LCA) of building materials and are embedded in certification systems such...
Go to contribution page -
10/10/2025, 09:30
When communicating on climate goals, the underlying models of change are rather complex and not always intuitive. My poster addresses this problem in the transdisciplinary frame of narratology and history of ideas, by highlighting Twentieth-Century traditions of storytelling and alternative conceptualisations of epochal change. Typical zero narratives of the past are event-centred. This holds...
Go to contribution page -
10/10/2025, 09:50
The current challenges of societal transformation into socially fair and ecologically sustainable economies require a deeper understanding of how people can be motivated, supported and empowered to change their habits and engage in sustainable behavior over longer time periods. In the present paper, we elaborate on the Personality-System-Interaction Theory as an integrative theoretical...
Go to contribution page -
10/10/2025, 10:10
The transition to low-carbon energy systems has fostered the development of market-based instruments, such as CO₂ emission allowances (EAs) and renewable energy certificates (RECs), to reduce greenhouse gas emissions and incentivize renewable energy production. This project explores the mathematical modeling, analysis, and numerical solution of these instruments, contributing both theoretical...
Go to contribution page -
10/10/2025, 11:00Product DesignAbstract TEC2ZERO
In this paper we paper suggest a systemic approach to strengthen sustainable literacy through strategic design on a societal level. The UN Resource Council (2020) underscores that extending product life cycles and increasing the intensity of use is crucial for meeting climate and resource goals. Design can help to bind carbon dioxide in products and infrastructures in the long term and on a...
Go to contribution page -
10/10/2025, 12:00
The increasing complexity of energy system models necessitates the use of surrogate models for efficient computation of optimal operations. In recent years, physics-based surrogate modeling has gained significant attention for its ability to enhance the accuracy of these surrogate models. However, applying surrogate modeling to complex networks introduces the challenge of system decomposition....
Go to contribution page -
10/10/2025, 12:20
Ongoing climate change is accompanied by an increase in the frequency and severity of extreme weather events, including heavy rainfall, extreme heatwaves and cold spells [1, 2]. These events represent climatic hazards that can significantly affect electrical distribution systems, potentially leading to power outages [3]. To achieve maximum energy efficiency in the electrical distribution...
Go to contribution page -
10/10/2025, 12:40Abstract TEC2ZERO
While building performance simulation (BPS) is becoming increasingly vital for sustainable building design, in alignment with the net zero carbon by 2050 target, under growing climate and regulatory pressures, its pedagogical integration faces challenges such as students’ limited knowledge in building physic and overreliance on simulation outputs, therefore difficulty in understanding abstract...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
Abstract
The rapid rise of electric vehicles has sparked a parallel challenge: the sustainable management of end-of-life lithium-ion batteries. While no longer suitable for automotive applications, these batteries often retain a considerable amount of usable capacity, making them strong candidates for second-life deployment in stationary energy storage systems. As the world advances toward...
Go to contribution page -
Energy Efficiency
The decarbonization of German emissions necessitates the expansion of renewable energy sources while concurrently decommissioning nuclear and coal power plants. Consequently, the geographical points of energy input are changing, prompting transmission system operators in Germany to expand and optimize the utilization of the electrical transmission grid at several locations [1]. Research...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
The transformation of the heating sector represents a central challenge on the path to climate neutrality. District heating networks play a particularly important role in densely populated urban areas, as they enable the efficient integration of renewable heat sources while supporting the gradual replacement of fossil fuels. The legally mandated, comprehensive municipal heat planning framework...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
The necessary electrification of the mobility and heating sector and integration of distributed energy resources as part of the energy transition to achieve a zero-carbon society is causing frequent technical limit violations (TLV) in distribution networks. The capacity of existing distribution substations (DSS) is often exceeded, necessitating network separation. To optimize the network...
Go to contribution page -
Critical Raw Materials (including possible toxicity and environmental impact)Abstract TEC2ZERO
As the demand for lithium-ion batteries (LIBs) surges due to the rise of electromobility and renewable energy storage, conventional recycling methods struggle to keep pace with sustainability goals. Current industrial processes rely heavily on energy-intensive and chemically aggressive techniques, raising concerns about environmental impact and scalability. This presentation explores...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
The move towards carbon-neutral electrical energy generation poses new tasks for the electrical transmission grid (>200 kV). Investment into curative congestion management is one viable alternative as per the InnoSys 2030 project [1], in order to not only bridge the gap towards large-scale expansion of the transmission grid, but also to reduce costly preventive redispatch measures. These...
Go to contribution page -
Life-Cycle AnalysisAbstract TEC2ZERO
Achieving zero-waste and zero-carbon goals in road infrastructure requires strategies that extend beyond construction to include the entire life cycle, based on a holistic understanding of road pavements and their condition. Conventional condition assessment methods generally focus on surface properties, neglecting the structural state of the road. This often results in misguided or suboptimal...
Go to contribution page -
Abstract TEC2ZERO
Air speeds can be individually adjusted with the help of workplace-related ceiling fans. In accordance with DIN EN ISO 7730, the temperature levels perceived as comfortable can be increased by up to 3 K. Against the background of increasing summer temperatures, this is particularly important for buildings with low cooling potentials, such as existing buildings and passively cooled buildings....
Go to contribution page -
Communication for Managing ChangeAbstract TEC2ZERO
Ein flächensuffizienter Stadtumbau verfolgt das Ziel, urbane Räume ressourcenschonend und zukunftsfähig zu gestalten. Wichtige Zukunftstechnologien wie emissionsfreie Produktionsmethoden, intelligente Energienetze und integrierte Mobilitätslösungen eröffnen neue Möglichkeiten, bestehende Flächen effizienter zu nutzen. Smarte multimodale Verkehrssysteme reduzieren den Bedarf an monofunktionalen...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
In order to reduce greenhouse gas emissions, the degree of electrification of the heating and transport sectors is increasing, among other things. This is creating new challenges for the energy networks. A cross-sectoral view of the energy system is required in order to plan the energy networks and thus prepare them for future requirements. Such a holistic approach is currently the subject of...
Go to contribution page -
Waste as FeedstockAbstract TEC2ZERO
The production of high-quality chemicals based on the efficient use of sustainable resources has become an urgent global concern. In this context, the use of renewable starting materials such as different lignins as alternative to oil-based materials has been receiving increasing attention for years. Among these resources lignin is the second most abundant macromolecule on earth and technical...
Go to contribution page -
Life-Cycle AnalysisAbstract TEC2ZERO
Hydrogen has reemerged in recent years as a promising environment-friendly energy carrier that can help reduce the world’s dependence on fossil fuels. Despite its unique advantages, there are still challenges regarding the storage and transportation of hydrogen. Specifically, the phenomenon of hydrogen embrittlement (HE) in metals can hinder the widespread use of hydrogen. This study focuses...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
The decarbonization of energy systems requires not only the substitution of fossil fuels with renewable sources but also the development of robust supply concepts for crisis scenarios. In particular, during a prolonged blackout, the continued power supply of critical infrastructure (CRITIS) is essential to mitigate societal and economic damage. As part of the research project SiSKIN Applied at...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
Der zukünftig erhöhte Wasserstoffbedarf rückt den Transport über Pipelines in den Vordergrund. Durch lange Transportwege muss dieser regelmäßig auf seinen Ausgangsdruck verdichtet werden. Zur Komprimierung sind entsprechende Kompressoren notwendig, welche mit Filtern ausgestattet werden, um die Reinheit des Wasserstoffs beim Transport zu gewährleisten. Insbesondere müssen feine Öltröpfchen,...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
On-chip energy harvesting is an emerging field, driven by the demands of mobile sensor systems for autonomous operation. For operation conditions under daylight or indoor light conditions, photovoltaic devices offer an easy and efficient way to cover the energy demands of sensor systems, having the potential of delivering power levels up to 20mW/cm². Recent studies on metal-insulator-graphene...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
In fire dynamics, radiative heat transfer is a crucial mechanism of energy transport and thus an important factor in flame propagation and fire spread. This applies across a wide range of scales, from small to very large, such as those encountered in building fires or wildfires. Radiative heat transfer is ubiquitous and also plays a significant role in the design and operation of...
Go to contribution page -
Urban Mining & Secondary Raw MaterialsAbstract TEC2ZERO
In view of the high CO2-emissions of the cement industry and the growing demand for mineral aggregates, maximum recovery of cement stone and original aggregates in concrete waste must be aimed at. For example, recycled coarse aggregates can be reused in ready-mix concrete, while the separated and ground cement stone can be returned into the clinker burning process, opening the possibility to...
Go to contribution page -
Waste as FeedstockAbstract TEC2ZERO
Oxidation of phenols using catalytic amounts of solid-supported IBS-based catalysts in Continuous Flow
J.P. Nau, Dr. A. Gómez-Suárez, Prof. Dr. S.F. Kirsch
As reactive intermediates, 1,2-quinones (o-quinones) have gained importance in organic synthesis. They can undergo many kinds of follow-up reactions like [4+2]-cycloadditions[2], formal [3+2]-photoadditions with vinyl ethers[3]...
Go to contribution page -
Waste as FeedstockAbstract TEC2ZERO
Selective cleavage and functionalization of C–C bonds remain a significant challenge in organic chemistry due to their intrinsic kinetic inertness and high thermodynamic stability.1 Throughout the last decades, numerous valuable homogeneous catalytic systems have been well established for the cleavage and functionalization of alcohols (β-substituted primary alcohols), which are abundant in...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
Satellites are essential for modern society, supporting functions like weather forecasting, climate protection, communication, IoT, and autonomous driving. Small satellites, in particular, are becoming increasingly important due to their cost-effectiveness and ability to be mass-produced. They often rely on onboard power systems since they must operate autonomously, and the cost of launching...
Go to contribution page -
Waste as FeedstockAbstract TEC2ZERO
The valorization of biomass-based waste products such as lignin or lignosulfonates to produce value-added compounds through depolymerization is of great importance in tackling the problems arising from the world’s dependence on fossil-based resources. Especially interesting are lignosulfonates because of their water solubility and the possibility of promoting reactions without the need for...
Go to contribution page -
Critical Raw Materials (including possible toxicity and environmental impact)Abstract TEC2ZERO
Mechanical stress leads to cracks and failures in materials and can also induce bond scission and the formation of radical species. Just as a UV lamp can accelerate photo-aging, mechanical stress applied via ball milling (or in another way) can be used to speed up material degradation and simulate mechanical wear over time.
Go to contribution page
Additives, especially antioxidants, are commonly added to polymers... -
Urban Mining & Secondary Raw MaterialsAbstract TEC2ZERO
The sustainable deconstruction of wind turbines is of great importance due to the growing of renewable energies and the limited availability of resources. Forecasts by the Ramboll Research Center show that the amount of waste from deconstruction will increase drastically in the coming years. A total of 5.5 million tons of waste concrete are forecast for 2038. Due to the large amounts,...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
The ongoing energy transition is increasingly changing the requirements for electrical distribution grids. Reactive power provision, which has traditionally been ensured primarily by central generation units in the transmission grid, must in the future be organized in a decentralized manner. At the same time, the share of new types of electrical loads in distribution grids is rising...
Go to contribution page -
Abstract TEC2ZERO
The design of product-service systems is a major lever for implementing the circular economy and, thereby, reducing negative environmental impacts, achieving climate targets, resource conservation, and resource sovereignty. The R-strategies serve as a framework to re-design products towards a more circular design. In a project seminar, we applied this framework on everyday products and their...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
Despite significant progress in Germany’s energy transition, substantial potential remains for reducing CO₂ emissions within the energy sector. In 2023, the energy industry accounted for 30.5% of total emissions, making it the largest emitter, even though renewable energy sources contributed 52% to electricity generation. This duality highlights the scope for further renewable energy expansion...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
Abstract
Go to contribution page
Building upon the initial concept and implementation of the Smart Grid Laboratory at the University of Wuppertal, this paper presents recent advancements that significantly broaden its scope for research, development, and education in the field of smart grids. The laboratory has been enhanced with remotely controllable circuit breakers, allowing dynamic reconfiguration of the grid... -
Energy EfficiencyAbstract TEC2ZERO
As the number of sensors and devices in the Internet of Things (IoT) grows, the demand for a reliable and sustainable energy supply becomes increasingly critical. Energy supply is particularly challenging in remote applications and/or in cases of poor accessibility. For these applications, batteries are unfavourable as they would have to be dimensioned for single-use discharge, making them...
Go to contribution page -
Abstract TEC2ZERO
Lithium-ion batteries power much of today’s technology, but their growing use brings serious environmental and ethical concerns. These include limited supplies of key materials like lithium, pollution from mining, and unsafe working conditions. Recycling these batteries offers a promising way to reduce the need for new raw materials and lessen the environmental burden. Current recycling...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
Roller-compacted asphalt used for road construction is produced and paved at temperatures between 130°C and 195°C. For work safety reasons, an occupational exposure limit (OEL) was set in Germany in 2019 for vapors and aerosols from bitumen during hot processing. A reduction in emissions can be achieved by using temperature-reduced asphalt. The mixing and paving temperatures are lowered by at...
Go to contribution page -
Energy EfficiencyAbstract TEC2ZERO
Traditionally, a raindrop touching streets or sealed areas will be subsequently mixed with wastewater and therefore treated in a cost- and energy-intensive cleaning process.
Go to contribution page
The originally clean raindrop is treated as wastewater in a wastewater treatment plant and leads therefore to an unnecessary CO2 production, a reduction of the efficiency of wastewater treatment plants and finally a... -
Energy EfficiencyAbstract TEC2ZERO
Climate change consequences are evident in more frequent extreme weather events such as heavy rainfall, heatwaves, and severe storms [1, 2]. These events will become more intense and frequent, posing major challenges to the reliability and efficiency of electrical distribution systems [3, 4]. To address this, operators of electrical distribution systems need to evaluate future extreme weather...
Go to contribution page
Choose timezone
Your profile timezone:
