Press releases of the Fraunhofer IBP

The rate of renovation in the building sector is still too low to achieve the energy transition by the target date set by the German federal government. However, increased use of prefabricated components can help accelerate this process. Researchers at the Fraunhofer Institute for Building Physics IBP and the Fraunhofer Institute for Energy Economics and Energy System Technology IEE are developing a facade module that integrates the technical building equipment and supplies it with renewable energy to heat, cool and ventilate the adjoining rooms. This is made possible by a PV system integrated into the modular facade for supplying energy, a mini heat pump for heating and cooling, and a decentralized ventilation unit with heat recovery. In addition to being suitable for the renovation of existing facades, the system can also be used as a sustainable, energy-efficient solution in new builds.

A visit to the movies is a nice break from day-to-day life and can be an enjoyable outing, especially when there is a pandemic. But in order to relax and enjoy the film, you want to know that the risk of infection while you are watching it is as low as possible. The good ventilation systems typical of movie theaters make sure that any infectious aerosols are quickly removed. This has also been confirmed by the latest analyses from the CineCov project funded by the Federal Government Commissioner for Culture and Media (BKM).

The Earth's climate is becoming hotter and more extreme - scientists no longer speak of the climate change, but of the climate crisis. It is high time to act. The World Climate Conference COP26 is currently taking place in Glasgow. Crucial climate policy decisions are on the agenda: adaptation to climate change, climate finance, and future climate-related damage. Our cultural heritage is acutely threatened by the climate crisis and irreplaceable losses are already occurring. But what exactly does the future look like? Which extreme climate events will affect cultural heritage in Germany? And how can it be protected from damaging climatic effects? Fraunhofer researchers are investigating this in the BMBF project KERES. For the first time, not only a single climate model is being used, but also an ensemble of ten regional climate models. This makes it possible to reliably predict which extreme weather events threaten the historical buildings and gardens and to what extent.

How can viruses be effectively eliminated from indoor air? This question is now becoming more important as fall approaches. Efficient indoor air purification is essential, especially in schools. Fraunhofer researchers are investigating and optimizing various filter and air purification techniques in the AVATOR project.

As a rapidly growing renewable raw material, bamboo is an ideal substitute for wood. However, bamboo’s susceptibility to mold in damp conditions poses a problem. Researchers at Fraunhofer have now analyzed bamboo’s response to moisture under specific climatic conditions. By using simulation software, building owners can plan and implement measures to prevent the growth of mold.

Climate change is causing a persistent increase in the number of hot summer days. Offices and homes are getting hotter, and the nights bring little respite from the heat. Against this backdrop, a significant increase in new cooling systems installations is anticipated, which in turn will give rise to increased energy consumption. One potential cost-effective alternative is to use existing heating systems. According to an analysis by the Fraunhofer Institute for Building Physics IBP, the heat pumps in these systems can be reverse operated to provide effective cooling.

How do infectious aerosols spread in supermarkets, airplanes, and other indoor areas where large numbers of people congregate? Researchers from 15 Fraunhofer institutes and institutions are investigating this in the AVATOR project.

In the 1990s, avoidable structural damage was discovered in numerous buildings. The Fraunhofer Institute for Building Physics IBP responded to this by developing the WUFI^® program family, which has since become internationally established. This year the building software is celebrating its 25th anniversary.

Until now, waste tires have been used mainly for recovering energy sources: Only small proportions of the carbon black contained in these tires are recycled, since mineral ash accounts for around 20 percent of its content. A new process developed by the Fraunhofer Institute for Building Physics IBP is able to isolate almost all of this ash – allowing both the carbon black and the minerals from the ash to be reused.

A significant part of carpet waste consists of petroleum-based polypropylene. As a non-recyclable product, disposing of it has previously meant incineration or landfill. However, a new solvent is now making it possible to recover virgin-standard polypropylene from carpet waste — with no perceptible reduction in quality. Developed by the Fraunhofer Institute for Building Physics IBP and its partners, the process also involves costs that are quite competitive. The development has taken place as part of the ISOPREP EU project.