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Tag: empa

  • IWB joins Sympheny

    IWB joins Sympheny

    IWB takes a 30 percent stake in Sympheny . The young company based in Dübendorf has developed software that can compare possible energy solutions for buildings in a matter of seconds. IWB wants to use the knowledge gained from this in its own planning for the climate-friendly conversion of the energy supply.

    “Affordable climate protection requires optimized energy supplies,” IWB introduces a post on LinkedIn about joining Sympheny. According to him, the company for energy, water and telecommunications in the canton of Basel-Stadt wants to support the spin-off of the Federal Materials Testing and Research Institute ( Empa ) with the fresh capital in the further development of their software. IWB writes that they are looking forward to working more closely with Sympheny co-founders Andrew Bollinger, Matthias Sulzer, Boran Morvaj and Julien Marquant.

    According to a report on startupticker.ch, the software from the young company, which was only founded in 2020, has already been used in more than 20 major planning projects. Sympheny’s customers include “energy suppliers and general contractors from all over Switzerland,” it says. The energy planning software developed by Sympheny simulates the energy system to be examined with a digital twin. Algorithms and standardized geographic information data (GIS data) can be used to simulate the production, storage and consumption of energy.

  • New development to reduce railway noise

    New development to reduce railway noise

    Researchers from the Swiss Federal Laboratories for Materials Testing and Research ( Empa ), the University of Economics and Engineering of the Canton of Vaud and the Swiss Federal Institute of Technology in Lausanne ( EPFL ) have jointly developed new rail pads. These components are mostly made of elastic plastic and are stuck between rails and concrete sleepers, as Empa explains in a press release . They are used to protect rails.

    However, existing rail pads have limitations. Especially if the protection of the rails is greatly increased, this leads to more noise pollution at the same time. The researchers now want to solve this challenge. After several tests in the laboratory, a part with more than 50 percent polyisobutylene (PIB) content, embedded in a shell made of a harder ethylene vinyl acetate (EVA) plastic, proved to be the most effective option. At the same time, it can reduce railway noise and protect the rails.

    In a next step, the new rail pads are to be tested on a railway line in Nottwil in March. “These rail pads are easy to make. We will need almost 400 units for the 100-metre stretch,” explains Bart van Damme from Empa’s Acoustics and Noise Reduction department. That is why a company is already on board that will take over the manufacture of the components that have already been patented.

  • Empa shows the advantages of high-performance insulating materials

    Empa shows the advantages of high-performance insulating materials

    Researchers at the Swiss Federal Laboratories for Materials Testing and Research ( Empa ) have investigated when an investment in costly high-performance insulating materials such as aerogels can be worthwhile for builders. According to a media release , the 25 most expensive cities in Europe, North America and Asia were initially compared. The research team found out that the lucrative area gain through the more expensive aerogels at a square meter price of more than 8000 francs exceeds the additional costs of the thinner insulation variant.

    The reason given is that high-performance insulation achieves the same insulating effect as conventional mineral wool, but only requires half to a quarter of the material used. Against the background of rising real estate prices and dense construction in cities, high-performance insulating materials such as aerogels could promote economical construction. Because the thinner the outer shell of a building, the more space is available inside.

    The economic advantages calculated using an equation could have been shown in the 15 most expensive cities – including the four Swiss cities of Zurich, Geneva, Lugano and Basel with the highest prices per square meter in Europe. Amortization was determined in the 14 most expensive cities in North America and in the ten most expensive cities in Asia. The knowledge could also support future planners when deciding on the appropriate insulation material.

  • An algorithm controls thermostats

    An algorithm controls thermostats

    Two researchers from the Urban Energy Systems Lab at the Swiss Federal Laboratories for Materials Testing and Research ( Empa ) have created a self-learning algorithm for heating thermostats. According to an Empa report , it can be integrated into conventional intelligent or smart thermostats via a cloud connection and regulate the room temperature in a predictive manner.

    "The potential is enormous," says Felix Bünning, co-founder of the Empa spin-off viboo, which markets this algorithm. "Our experiments at NEST have shown that energy savings of between 26 and 49 percent can be achieved with this approach."

    To create a model of the building, building data such as valve positions and room temperature measurements from just two weeks are sufficient. In combination with forecasts for the local outside temperature and global solar radiation, the algorithm then independently calculates the ideal amount of energy required to heat or cool the building up to twelve hours in advance.

    According to the information, a first partner is the Danish company Danfoss . The internationally active thermostat manufacturer is currently testing in a pilot project together with viboo how high the savings potential is in conventional existing buildings. In addition, the start-up is already in talks with other industrial partners. For example, it will integrate the algorithm directly into the central building automation system in a Zurich office building.

  • Artificial intelligence analyzes CO2 emissions from traffic

    Artificial intelligence analyzes CO2 emissions from traffic

    An analysis method developed at the Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ) can make statements about how the consumption of a country’s vehicle fleet changes from year to year. This new method is based on math and deep learning techniques. According to a communication , it is able to show where politicians and car buyers could start to reduce CO2 emissions.

    Analyzing this has become increasingly difficult in recent years. Because vehicles can no longer be divided into classic segments such as small, medium and luxury classes due to technical innovations. In addition, new vehicles are getting bigger and heavier. In addition, the cubic capacities would decrease, while the efficiency of the engines would get better and better at the same time.

    That is why the Empa Vehicle Drive Systems department describes its analysis technology as an “important breakthrough”: It enables “CO2 emissions to be assessed separately and an accurate automatic vehicle classification to be carried out by analyzing large databases,” explains researcher Naghmeh Niroomand. “This makes it easier to analyze changes in fleets in a country or a large company.” Thanks to this new method, “subjective and expert-based factors” would be eliminated and databases from all over the world would be comparable.

    For Switzerland, the team was able to calculate the average CO2 emissions of newly registered cars. If less heavy vehicles such as SUVs were on Swiss roads, this would be the most effective way of promoting decarbonization, says Niroomand. It would also be helpful to buy vehicles with lower performance in the same vehicle class.

  • Empa concrete project receives funding

    Empa concrete project receives funding

    The Ernst Göhner Foundation , based in Zug, is funding a research project for high-performance concrete at the Federal Materials Testing and Research Institute ( Empa ). She has now made an unspecified amount available to the Empa Future Fund as start- up funding, according to a media release .

    This supports a research project for more environmentally friendly concrete. This has a lower CO2 footprint than conventional reinforced concrete because it is more durable and stable. In addition, the self-tensioning concrete can be used more sparingly.

    The project is a so-called high-risk-high-gain project. "The risk of failure is high, but there is also a lot to be won," Masoud Motavalli, head of the research department for engineering structures at Empa in Dübendorf, is quoted in the media release. Since 2008 he had approached potential sponsors with the idea of prestressed high-performance concrete.

  • Empa is researching underground storage

    Empa is researching underground storage

    Empa is setting up an experimental, seasonal energy storage facility under its new research campus in Dübendorf, the research institute informs in a message . The waste heat from ventilation and laboratory equipment is to be stored in the ground below the area. The aim is to supply the entire Empa area with energy, writes Empa.

    A geothermal probe field with a temperature gradient serves as a heat store, in which 144 geothermal probes anchored up to 100 meters deep in the ground are installed. With their help, the Empa researchers want to set an optimal mix between temperature, efficiency and energy storage. The temperatures in the underground storage can fluctuate by up to 50 degrees in the center and 10 degrees in the peripheral areas. At a depth of 100 meters, the storage system works particularly effectively and loses very little heat to the environment, explains Empa.

    The research institute can use the heat storage system for ten years, primarily for its own research purposes. On the one hand, an underground storage facility is very effective, but due to its large mass it is also sluggish, according to the press release. The researchers assume that it will take about three to four years to set the final operating temperature.

  • Look to the future of construction technology

    Look to the future of construction technology

    It is a long way from the idea to marketable innovation – especially in the construction industry. There is a gap between technologies that work in the laboratory and the market that demands well-engineered and reliable products. The modular research and innovation building NEST of the Swiss research institutes Empa and Eawag aims to close this gap.

    The NEST (Next Evolution in Sustainable Building Technologies) was opened in 2016 and is located on the Empa campus in Dübendorf. The building consists of a building core with three cantilevered platforms. Temporary, thematically different building modules, so-called units, can be installed on it. In this way, research teams, architectural offices and companies from the construction industry can test and develop materials, technologies, products, energy concepts and usage concepts together at NEST. In the sense of a “living lab”, the installed units are actually used living and working environments.
    The “HiLo” unit is currently under construction on the top platform of NEST. Construction started in summer 2019. The unit is intended to demonstrate the possibilities in lightweight construction. In addition to an innovative roof construction, material-saving lightweight floors and an adaptive solar facade are used. During operation, the building technology is to be continuously optimized with the help of machine learning. The unit will officially open on October 6, 2021.

    The two-story “STEP2” unit is also being planned. Business and research partners implement them together in an open innovation approach. After its completion, which is planned for summer 2022, it will serve as an interdisciplinary innovation workshop and office environment. The unit’s central projects include a spiral staircase in the shape of a human spine, a building envelope that adapts to the external conditions, and a floor ceiling made with 3D printing.

  • Artwork produces solar power

    Artwork produces solar power

    Solar cells can also decorate buildings as objects of art. This is shown by a project that has now been implemented at the NEST research building of the Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ) and the EAWAG water research institute. The facades of the building have been fitted with photovoltaic modules, which together result in a work of art.

    To this end, Empa implemented the project called Glasklar, on which it worked together with Zug Estates and students and lecturers from the two departments of Design & Art and Technology & Architecture at the Lucerne University of Applied Sciences and Arts. The latter designed photovoltaic modules in a two-week block event, which visually match the NEST building as design objects. The design was implemented by textile design student Lynn Balli. It was selected for use in the NEST building in an interdisciplinary design competition.

    “If we can arouse the interest of designers in the design of building-integrated photovoltaic modules, we will make an important contribution to greater acceptance of photovoltaic facades and thus promote the expansion of renewable electricity production in Switzerland,” says Björn Niesen, NEST innovation manager Message from Empa quoted.

  • Empa achieves record for flexible solar cells

    Empa achieves record for flexible solar cells

    The Empa team from the Laboratory for Thin Films and Photovoltaics , headed by Ayodhya N. Tiwari, has set its seventh record for the efficiency of flexible CIGS (Copper Indium Gallium Diselenide) solar cells. After a record high efficiency of 12.8 percent in 1999, it has now reached 21.38 percent, according to a press release. This new record was confirmed by the independent Fraunhofer Institute for Solar Energy Systems in Freiburg, Germany.

    The value now measured is already close to the best efficiency of conventional, non-flexible solar cells made of crystalline silicon of 26.7 percent. The highly efficient flexible solar cells are particularly suitable for use on roofs and building facades, for greenhouses, transport vehicles, aircraft and portable electronics. Together with the Niederhasli ZH-based company Flisom , a spin-off from Empa and the Swiss Federal Institute of Technology Zurich ( ETH ), the researchers are developing roll-to-roll production of lightweight, flexible solar modules for such applications.

    These solar cells are produced on a polymer film using a low-temperature evaporation method. The light-absorbing semiconductor material lies on top as a wafer-thin film. Empa researcher Shiro Nishiwaki optimized their composition. In this way he was able to further increase the efficiency. According to the team’s measurements, the increase in photovoltaic output remained stable even after several months.

    Tiwari’s team works closely with the Kovalenko Lab for Functional Inorganic Materials at ETH Zurich. The research and development work was supported by the Federal Office of Energy .

  • Empa proposes a plan for building renovation

    Empa proposes a plan for building renovation

    The Dübendorfer Urban Energy Systems Laboratory of the Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ) has developed measures to reduce the greenhouse gases of the 1.8 million buildings in the country. The laboratory wants to show what the appropriate steps are and in which order they should be taken, it says in a message . The goal is a decisive reduction in CO2 emissions for heating and cooling in order to achieve Switzerland's net zero target by 2050. If the ecological renovation of the building stock progressed at the current pace, it would take another 100 years, Empa calculates.

    Led by Kristine Orehounig, the researchers used data mining to divide all residential and commercial buildings in Switzerland into over 100 archetypes, depending on the year of construction, heating type, location and number of users. Then all of them were checked for their suitability for photovoltaics and connection to a heating network.

    According to Empa, this sorting work has shown that it is worthwhile to start renovating the roofs and windows of older buildings particularly quickly. This should be followed by the renovation of heating systems in almost all house types. It is important to replace fossil fuels as quickly as possible with photovoltaics on roofs and facades. The research team recommends generating heat using heat pumps and biomass heating. "If the proposed measures are taken," believes Kristine Orehounig, "the greenhouse emissions in Switzerland's existing building stock can be reduced by 60 to 80 percent".

  • Empa strengthens concrete buildings

    Empa strengthens concrete buildings

    Outdated concrete structures have long been reinforced with carbon fiber reinforced plastics (CFRP), Empa explains in a press release . Empa researchers have now further developed this technology. Your CFRP lamellas can actively counteract the deflection of concrete beams.

    To do this, the slats are glued to the beams with epoxy resin under tensile stress. After the connection has hardened, the tensile stress counteracts the deflection of the beams. The researchers have also improved the previous method for attaching the ends of the strips. Instead of glued and screwed aluminum plates, specially developed CFRP brackets are used.

    "A solution made from a single material is always better than two that behave differently," Empa researcher Christoph Czaderski is quoted in the press release. “We made a lot of tests in the laboratory, especially for the anchoring.” According to the announcement, the new technology can increase the load-bearing capacity of a concrete slab by 77 percent compared to the classic method.

    The next step is to bring the process to market maturity. To this end, Empa is working with S&P Clever Reinforcement Company in Seewen SZ as an industrial partner. An industrial process is currently being developed for the hangers that have previously been handcrafted, according to the announcement. Martin Hüppi believes the process is “justifiable in terms of price for building owners”. “I absolutely see a market for this,” explains the S&P project manager in the press release.

  • Empa-Forschende entwickeln Energiesparriegel für Fenster

    Empa-Forschende entwickeln Energiesparriegel für Fenster

    Forschende der Eidgenössischen Materialprüfungs- und Forschungsanstalt (Empa) haben eine neuartige Wärmedämmung für Fenster entwickelt. Laut Medienmitteilung ist der Dämmsteg eine Art Sandwich, mit einer umweltfreundlichen Füllung. Im Inneren befindet sich aus wiederverwerteten PET-Flaschen geformter Schaumstoff mit mikroskopisch kleinen Luftbläschen. Dieser sogenannte gefüllte Energiesparriegel für Fenster hat einen sehr hohen Wärmedämmwert.

    Entwickelt wurde der Riegel von einem Empa-Team um Michel Barbezat und Giovanni Terrasi von der Abteilung Mechanical Systems Engineering zusammen mit Experten des Metallbauunternehmens Hochuli in Wigoltingen TG. Frank Hochuli hat für das Vorhaben eigens die Tochterfirma hochuli advanced gegründet. Hochuli bietet den Dämmsteg unter dem Markenzeichen Alpet an. Verglichen mit heutigen hochwertigen Ausführungen liesse sich die Wärmdämmung, etwa in einem neuen Bürogebäude, durchaus um bis zu einem Fünftel verbessern, wird Frank Hochuli zitiert.

    Das neue Produkt ist von den Empa-Forschenden auf Verschleissfestigkeit bei Dauerbeanspruchung wie auf die Eigenschaften der Wärmedämmung geprüft worden. Eine weitere Prüfung des neuartigen Dämmstegs ist beim Prüfinstitut ift im bayerischen Rosenheim vorgenommen worden. Das ift gilt laut der Medienmitteilung in der Branche seit Jahrzehnten als Referenz. Die Fachleute dort setzten laut der Empa-Mitteilung die Prototypen auch Brandversuchen, Bruchtests und anderen Belastungen aus, wie auf nicht sichtbare Mikrorisse nach 1000-stündiger Lagerung in Öl oder leichter Säure oder nach starkem Zug in Querrichtung.

    Nach Angaben von Frank Hochuli liegen offizielle Zertifizierungen zum Brandverhalten und zur statischen Belastbarkeit vor. Das Attest zur Wärmedämmung steht noch aus.

  • Empa and Eawag expand campus

    Empa and Eawag expand campus

    The symbolic construction work for the expansion of the research campus by Empa and Eawag in Dübendorf began on Wednesday. The groundbreaking ceremony gave the go-ahead for a new laboratory building. In addition, a multifunctional building and a multi-storey car park are planned on the 20,000 square meter site. According release Empa and completion is scheduled for the middle of the 2024th

    The laboratory building will provide space for around 60 new laboratories and offices, the multifunctional building 1000 square meters of office space and space for restaurants on the ground floor. All parking spaces will be moved to the multi-storey car park. A total of 260 vehicles should find space in it. This would make the outside areas more inviting and safer for pedestrians and cyclists. In addition, more greening is possible.

    In the future, research will not only be carried out in, but also on and with the new buildings. Innovations from Empa's laboratories are to be used primarily in the areas of energy and building technology. For example, a field with geothermal probes is planned that will store the waste heat from the buildings and release it again in winter. A research project will then investigate how this innovation affects the campus energy supply.

  • Switzerland needs 87 million tons of material a year

    Switzerland needs 87 million tons of material a year

    Researchers at the Federal Materials Testing and Research Institute ( Empa ) investigated the question: How much does Switzerland consume? The basis was the mass and energy flows for the year 2018. According to the press release , this means that domestic material consumption is 87 million tonnes net per year. That is the mass of material needed to keep the Swiss economy running. This includes, for example, buildings, streets, cars and electricity.

    As an example of outflowing masses, the announcement mentions that 12 million tons end up in the final disposal. The export in the research year 2018 amounted to 18 million tons. A large part of the incoming material remains in the system and allows the "warehouse" to grow by 52 million tons per year (as of 2018). The total weight of the “material warehouse” in Switzerland is around 3.2 billion tons.

    The study is the fourth part of the MatCH project. The abbreviation stands for "Material and energy resources and associated environmental impacts in Switzerland". The project was launched in 2013 on behalf of the Federal Office for the Environment (FOEN) and extended over several stages. The first part recorded all material and energy flows in the construction sector; the second covered mobility. And part three was devoted to the production and consumption of the other goods that are imported, obtained domestically and exported.

    The work now presented is part four, which brings a synthesis of the findings from the three previous ones. The team also analyzed how the behavior of the population affects greenhouse gas emissions. In addition to per capita consumption data, the researchers also analyzed personal behavior. The message states that if all residents behaved like the fifth of the population with the most exemplary lifestyle, Switzerland's total greenhouse gas emissions could be reduced by 16 percent. If, on the other hand, everyone behaved like the fifth with the least ecological lifestyle, emissions would rise by 17 percent.

  • Office floor in NEST is being built so that it can be recycled

    Office floor in NEST is being built so that it can be recycled

    The office unit in NEST called Sprint is intended to set new standards for circular building. The groundbreaking ceremony will take place in mid-April. It should be finished in summer. Sprint is located on the first floor of NEST in Dübendorf. The three-storey modular building is the research and innovation center of the Federal Materials Testing and Research Institute ( Empa ) and the water research institute of the ETH Domain ( Eawag ).

    As stated in a press release by Empa, those involved in the planning concentrated on finding the most general solutions possible for a later dismantling. In doing so, they follow a design approach that facilitates future changes and dismantling to recover systems, components and materials. Today's buildings have to be built in such a way “that their components can be fed back into cycles”, says Kerstin Müller, managing architect at baubüro in situ and managing director of Zirkular GmbH .

    Your colleague Oliver Seidel points out that reusing materials is often associated with lower costs. “But the added value lies in another area: Re-use is more sustainable. And in terms of quality there is no loss. ”On the contrary. For example, the aesthetics of an old wooden parquet floor represent added value.

    "For the first time, Empa is combining the approach of reuse and the market requirements of fast and flexible construction," Enrico Marchesi, innovation manager and project manager at NEST, is quoted as saying. "With the new 'Sprint' unit, we want to show that these needs can be met together."

  • Empa is replacing bitumen in road construction with string

    Empa is replacing bitumen in road construction with string

    Researchers at the Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ) are currently examining a new method for stabilizing the amount of stone in road construction. Specifically, according to the press release, it is about replacing the bitumen binding agent in the production of the driving surface. Asphalt consists of stones of different shapes and sizes and only becomes a surface that can be used for roads when it is stabilized with the help of bitumen.

    Bitumen causes environmental problems. Air pollutants are released during production from crude oil and later during use. Asphalt is also prone to cracks and deformations and impermeable to rainwater, which pollutes the environment.

    The two Empa researchers Martin Arraigada and Saeed Abbasion from the concrete and asphalt department at Empa are currently implementing a method known from art for the production of road surfaces in a test arrangement. In such art objects, stone steles have been used, which are stabilized by a weave of twine and withstand loads of up to 20 tons at a height of 80 centimeters.

    In the experiment, an electronically controlled robot arm applies a string to a stone layer in a specific pattern. By “interweaving” the stones are fixed in five layers in their position in the “road bed”. In tests, these were already as strong as conventional bitumen asphalt under loads of half a ton. Inexpensive twine was used, such as are conventionally used for tying up packages.

    The trials have not yet led to a ready-to-use product that could be used in road construction. The basic work, however, provides a lot of innovation potential in order to get closer to a recyclable and perhaps rollable road surface using simple means, according to the Empa announcement. A video of the procedure can also be viewed on the website.

  • Excellent designs adorn the photovoltaic facade of the NEST

    Excellent designs adorn the photovoltaic facade of the NEST

    Students at the Lucerne University of Applied Sciences have made design objects out of photovoltaic modules. They are to be installed on the facade of the NEST research and innovation building on the campus of the Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ) in Dübendorf. In a competition, students from the two university departments of Design and Art as well as Technology and Architecture at the Lucerne University of Applied Sciences and Arts (HSLU ) were invited to present their designs. The works of art were created as part of a two-week interdisciplinary block event, according to an Empa media release.

    A six-member jury selected the design entitled "Crystal Clear" by Lynn Balli as the winner. Her eight motifs can be seen on the modules that will be installed on the facade of NEST in summer 2021. The design convinced the jury with "the elegant emphasis on the dynamics of glass and the successful implementation with eight individual works of art".

    The jury was made up of executives from Empa, HSLU and Zug Estates . The audience award was won by Florence Schöb's “Vernetzt” project.

    NEST is the joint research and innovation building of Empa and the water research institute Eawag . Construction and energy technologies and materials are tested in the modular building. This is intended to promote the sustainable use of resources and energy.

  • Siloxene offers "miracle material" for the chemical industry

    Siloxene offers "miracle material" for the chemical industry

    After a successful research career at the Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ), Matthias Koebel founded his own start-up called Siloxene. With this he wants to market a multifunctional material component that he discovered and researched during his time at Empa.

    In a press release , Empa describes the development as a “miracle material” for the chemical industry. Specifically, it is a silicon-based, molecular hybrid building material that is only about a nanometer in size. The material can be used to improve the properties of adhesives, coatings or fillers depending on the product and customer requirements. For example, coatings can be made more scratch-resistant or adhesives can have a shorter curing time. Empa also compares the material with the gene scissors Crispr / Cas, which was awarded the Nobel Prize for Medicine. This can be used to cure genetic diseases.

    With its new start-up, which is based in Dübendorf, Koebel is primarily aimed at companies in the plastics processing, adhesive or sealant production and the building materials industry. "The regulatory hurdles are not so high here and we can relatively easily optimize their products and processes with the companies," he explains in the press release.

    Koebel is currently concentrating on expanding its research and development department and on customer acquisition. He first wants to have his macromolecule produced by a contract manufacturer. "In the long term, however, I would like to set up my own production," he emphasizes.

  • Energie 360 ° is working on a power-to-gas solution

    Energie 360 ° is working on a power-to-gas solution

    Energie 360 ° and the gas storage company RAG Austria are working on making solar energy available all year round. Both are jointly pursuing the innovative power-to-gas project Underground Sun Conversion – Flexible Storage . It started in December 2020 has a term of two and a half years and is supported by the European Commission promoted . Field tests are already underway at the RAG research site in Pilsbach, Upper Austria.

    In this project, excess renewable energy, such as solar power in summer, is converted into hydrogen, explains Energie 360 ° in a press release . This is then stored together with carbon dioxide in natural underground storage at a depth of over 1000 meters. There, microorganisms combine hydrogen and carbon to form renewable methane gas. This energy can be used in the event of supply gaps, for example in winter. The advantage over pumped storage power plants or batteries lies in the much higher storage capacity and, at the same time, less surface area, according to Energie 360 °.

    In Switzerland, the two companies cooperate with the University of Bern , the University of Applied Sciences in Eastern Switzerland and the Federal Materials Testing and Research Institute ( Empa ). "We are working together on the solution to one of the greatest challenges facing the energy system of the future: How do we advance volatile renewable energy sources such as sun and wind and at the same time offer year-round security of supply?", Says Andreas Kunz, Head of Energy Systems at Energie 360 °.

  • Lidl is planning branches for the future

    Lidl is planning branches for the future

    Lidl Switzerland had already committed itself in 2014 to make the operation of its branches more sustainable, informs the retail company in a message . After all, the energy consumption of 150 Swiss Lidl branches corresponds to that of a medium-sized city in the country. The savings potential is correspondingly large.

    New branches are to be implemented as early as this year with the help of an innovative energy concept, the communication further explains. "It is very important to us that our future locations are future-proof and sustainable with regard to building materials, energy consumption and technology", Reto Ruch, Chief Real Estate Officer of Lidl Switzerland, is quoted there. Lidl Switzerland is working with Empa to develop this energy concept.

    In a first step, the two partners will analyze the energy consumption of the existing branches. As a result, optimization measures should then be derived from this. At the same time, Empa and Lidl want to test alternative energy systems with the help of computer simulations. "Our goal is to help Lidl Switzerland with our research work to further improve sustainability, continue to reduce emissions in the future and optimize energy management," explains Empa researcher Curdin Derungs in the press release.

  • Implenia is building on the Empa campus in Dübendorf

    Implenia is building on the Empa campus in Dübendorf

    Implenia is implementing the first stage of the new Empa campus in Dübendorf. According to its media release , the construction company will build a laboratory building, a multifunctional building and a multi-storey car park for the Federal Water Supply Agency (Eawag) from spring 2021. Completion is planned for autumn 2023. The order volume is around CHF 56 million.

    This winning project by sam architects emerged from a two-stage overall performance competition. In the press release, Implenia describes its architectural language as “functionally elegant and elegantly reserved”. All new buildings are to receive a Minergie-P-Eco certification.

    "We are very pleased that we are able to carry out another interesting project for Empa Eawag with the research campus", Jens Vollmar, Head Division Buildings at Implenia, is quoted in the press release. "We are thus building on the longstanding relationship that we were able to develop, for example, with the successful implementation of the Chriesbach Forum, also in Dübendorf."

  • Empa steel adhesives last 50 years

    Empa steel adhesives last 50 years

    In the large test laboratory of the Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ) in Dübendorf, a test has been running for 50 years to examine the long-term behavior of bonded steel reinforcement on a concrete beam. In this long-term test, which is unique worldwide, according to the media release , several reinforced concrete girders were reinforced with steel lamellas glued to the underside. One of the girders, which has been subjected to 87 percent of its predetermined breaking value for 50 years, has so far held out without any problems.

    “After 50 years below 87 percent of the average breaking load, the epoxy resin bond shows no weaknesses. This means that bonded steel lamellar reinforcements have passed the long-term test, ”says engineer Christoph Czaderski, who has overseen the test over the past few years.

    According to the announcement, the carrier is one of originally six identical specimens, all of which were subjected to different tests. The five other reinforced beams fell victim to fairly successful static fracture and dynamic fatigue tests that exceeded their load limits. The aim of the tests was to find out how well epoxy resin works as an adhesive for attaching a steel lamella to a concrete beam. According to Czaderski, the long-term test shows "practically no shifts" in the adhesive joint after 50 years.

    What was new territory at the beginning of the test is now state of the art. The process is important because it allows older buildings to be reliably reinforced instead of being torn down and replaced by new buildings.

    Empa's “Engineering Structures” department has been developing and researching new, simple and inexpensive reinforcement methods with modern materials such as epoxy resins, carbon fiber-reinforced plastics and shape memory alloys for many years.

  • NEST is planning a new STEP2 unit

    NEST is planning a new STEP2 unit

    A new unit will move into the Dübendorfer NEST , the research and innovation building of the Eidgenössischer Materialprüfungs- und Forschungsanstalt ( Empa ) and Eawag , the ETH Domain's water research institute. It bears the name STEP2 . According to a press release by Empa, two new floors are currently being planned on the existing NEST building for this innovation workshop.

    These are as forward-facing as the NEST itself: a spiral staircase in the shape of a spinal column from 3D printing will connect the two new floors. A ribbed filigree ceiling requires around a third less material than a conventional one, and an efficient building envelope should ensure optimal comfort. Further information on these and other innovative construction details as well as regular information on the creation of the unit are available on the STEP2 website .

    The project itself was initiated by BASF. Together with numerous other partners from science and industry, the STEP2 unit will work “purposefully” towards marketable, sustainable solutions for building envelopes, energy systems, digital and industrial production and the circular economy. “This interdisciplinary collaboration is intended to ensure that the leap onto the market can ultimately succeed as quickly as possible,” says Enrico Marchesi, Principal Innovation Manager at BASF, the main partner of the new unit.

    The project team, according to the announcement, is currently completing the preliminary project. The planning of the construction should start at the beginning of 2021. Completion is planned for summer 2022.

  • Empa presents three innovation awards

    Empa presents three innovation awards

    The Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ) has honored three of its groundbreaking projects and achievements with the Empa Innovation Award. The prize, endowed with CHF 5,000, has been awarded every two years since 2006. In doing so, Empa honors the efforts of its researchers to build further bridges between science and business with applied, market-oriented research.

    According to a press release by Empa, the first prize goes to the novel tissue adhesive technology Nanoglue. It was developed by researchers at the Particles-Biology Interactions Laboratory at Empa in St.Gallen in collaboration with the Nanoparticle Systems Engineering Lab at the Swiss Federal Institute of Technology in Zurich . Their radically new approach uses the wound-healing properties of inorganic nanoparticles. The inexpensive materials could be manufactured on a large scale. The “unique technology” is now being brought to market maturity by the Zurich start-up anavo medical , which has yet to be founded.

    The transparent face mask from the Hello Mask project by Empa and the Swiss Federal Institute of Technology in Lausanne ( EPFL ) also received an award. It consists of a fine membrane with a pore size of around 100 nanometers. This membrane allows air to pass through, but holds back viruses and bacteria. “The fully see-through mask was developed primarily with the aim of improving the relationship between caregivers and patients,” says researcher Joshua Avossa. The Geneva start-up HMCare has been working on the market launch of the Hello Mask from Empa and EPFL since 2020. It should be available in mid-2021.

    The software platform Urban Sympheny for planning sustainable energy systems is the third winner. The Empa spin-off of the same name, based in Dübendorf, helps planners to identify optimal solutions for their location and their customers. The goal is energy and cost efficiency. The innovative platform was developed in Empa’s Urban Energy Systems department. Last year Venture Kick awarded Urban Sympheny 50,000 francs.

  • Solar power could solve Swiss energy problems

    Solar power could solve Swiss energy problems

    Only photovoltaics can show Switzerland the way to a CO2-free future, writes the Deputy Director of the Federal Materials Testing and Research Institute ( Empa ), Peter Richner, in an article for Avenir Suisse . It is based on the so-called Kaya identity, which the Japanese scientist Yoichi Kaya used in 1993 to describe the total amount of anthropogenic CO2 emissions as a function of four factors. The fourth alone, a reduction in the CO2 footprint, has enough potential, according to Richner, to achieve Switzerland's climate goals – through massive expansion of photovoltaics.

    If only 50 percent of all Swiss roofs were equipped with solar modules, electricity production from nuclear power plants would be superfluous. Richner demonstrates this in terms of electricity supply and demand for 2015. However, if all roofs and increasingly also building facades were equipped with solar panels, the output gap in winter could also be compensated for. At the same time, however, solutions would have to be found in order to be able to utilize the largest possible proportion of the electricity surplus in summer, both on a daily basis and at other times of the year.

    For increased flexibility of use, day storage systems could shift loads, for example through batteries or hydrogen. Digitization offers opportunities for the necessary creation of flexibility in consumption and production. Excess electricity could be converted into hydrogen in summer and possibly, together with CO2 from the air, into methane or liquid synthetic hydrocarbons. These chemical energy carriers can be stored easily and used in a variety of ways. And finally, seasonal heat storage systems could be charged with excess electricity in order to reduce energy requirements in winter.

    The potential of energy efficiency, another influenceable factor of the Kaya identity, is far from being exhausted, says Richner. However, achievements in this area would be compensated for by higher electricity demand, fossil electricity imports from abroad in winter or increased electricity consumption.

    In order to achieve a climate-neutral Switzerland, one of the four factors in the Kaya identity must be zero or the remaining product is offset with CO2-negative technologies such as the separation of CO2 from the air and its storage. Politicians must provide a decisive framework for this, as long as the nuclear power plants are still running.

  • Innovation in concrete can make buildings leaner

    Innovation in concrete can make buildings leaner

    A team of researchers from the Eidgenössische Materialprüfungs- und Forschungsanstalt ( Empa ) has developed a new technology. This enables concrete to be produced and used more sustainably. For this purpose, the materials used in the manufacture of self-prestressed concrete elements are reduced.

    With conventional prestressing, steel tendons are usually anchored on both sides of the concrete element, put under tension and then removed again. Because the steel is susceptible to rust, “the concrete layer around the prestressing steel must have a certain minimum thickness”, according to Empa in a press release . Researchers have therefore been working on replacing steel with carbon fiber reinforced plastic (CFRP) since the 1990s. However, this process is very expensive and also significantly more complicated than the prestressing process with steel.

    Empa has now completely solved these problems. Thanks to her method, she can dispense with anchoring on the sides of the element. Instead, its recipe enables the concrete to expand as it cures. "As a result of this expansion, the concrete puts the CFRP rods inside under tension and thereby automatically pretensions them."

    "Our technology opens up completely new possibilities in lightweight construction," said Mateusz Wyrzykowski, who heads the Empa team together with Giovanni Terrasi and Pietro Lura. "Not only can we build more stable, but we also need considerably less material."

    The team recently received patents in Europe and the United States for its technology. It is now developing new applications together with industrial partner BASF.