BAU

Fair / January 13, 2025 - January 17, 2025

World's leading trade fair for architecture, materials and systems in construction.

BAU is the world's leading trade fair for architecture, materials and systems in the construction industry.

At the upcoming trade show, Fraunhofer ISE will be presenting its latest innovations and research and development services relating to climate-friendly and resource-saving construction methods. Our stand will be part of a special show of the Fraunhofer Building Innovation Alliance BAU, which will focus on the topic "We are realizing the building of the future - digital, sustainable, affordable!" in 2025.

Visit us at our booth 528 in Hall C2: we look forward to exchanging ideas with you!

Event details

Program

Our Exhibits

Contact

BAU 2025 | World's Leading Trade Fair for Architecture, Materials, Systems (bau-muenchen.com)

Location

Munich
Trade Fair Center Messe München
Am Messeturm, 81829 München

Date

January 13, 2025 - January 17, 2025

Download this event as iCal

Our Themes and Exhibits

The Fraunhofer ISE status will focus on innovative solutions and product developments in the fields of building envelope and heat pump technology as well as on the other topics of serial construction and sustainable building renovation, digitalization and energy- and cost-efficient heating. Our experts are looking forward to presenting our multi-layered portfolio of innovations and services in response to the growing pressure for transformation in the construction and planning industries.

Resource-saving, Easy-to-install BIPV Module with Insulation Function

PV-Modul mit Fassadendämmung — © Fraunhofer ISE
Resource-saving, quick-to-install BIPV façade element with thermal insulation

At BAU, the two institutes of Fraunhofer ISE and Fraunhofer UMSICHT are presenting the demonstrator of a multifunctional BIPV façade element that combines electricity generation, thermal insulation and weather protection for the first time. Two biogenic variants made of hemp fibers and mushroom materials were developed as insulating materials for the module, which can be installed without a substructure. Both insulating materials are integrated into the BIPV façade element in such a way that the components can be separated at any time.

In the application area of building classes 1 to 3, the modules allow very simple and quick implementation of BIPV façades. Thanks to the choice of insulating materials and the ease of installation without special aids such as holding systems or robotics, they also meet key criteria for sustainable construction, including CO² neutrality and circularity of the materials used, as well as material savings and deconstructability. The mushroom materials used are particularly sustainable and climate-friendly, as residual materials are used in the biotechnological manufacturing process. The CO2 bound in the residual materials remains in the workpiece. This creates a composite material without the use of additional adhesives or binders.

Fraunhofer ISE also supports future construction projects with a digital process description for the correct design of building-integrated photovoltaic systems and for installation. Visitors to BAU can also get to know these at the Fraunhofer booth.

The demonstrator presented is an initial development result from the Fraunhofer flagship project "Bau-DNS".

Research and development services for:

Facade planner
Facade manufacturer
Module manufacturer
Architecture and planning offices
Construction and housing industry

Project BAU-DNS

"LCR290" - Demonstrator of a Heat Pump for Apartment Buildings

© Fraunhofer ISE
Demonstrator of a heat pump with propane developed at Fraunhofer ISE for use in apartment buildings.

Heat pumps are a climate-friendly solution for heating and covering hot water requirements in buildings, but are currently only used in around three percent of existing multi-family buildings. We are therefore conducting intensive research into solutions that can be standardized and multiplied on a broad scale, including in the German Federal Ministry for Economic Affairs and Climate Action (BMWK) funded project "LCR290".

To this end, an initial demonstrator has already been built and measured in the laboratory, which illustrates the replacement of fossil heating appliances in apartment buildings with a heat pump using the climate-friendly refrigerant propane (R290). A filling quantity of 150 g propane (R290) was used. The demonstrator presents a decentralized solution with a hydraulically tapped heat source (geothermal/solar thermal energy, district heating, air collector or low-temperature heat network).

"The low filling quantity of 150 g is an important value in order to minimize the potential danger when using the flammable refrigerant propane and thus enable the heat pump to be used in kitchens and washrooms, the typical places of use," explains project manager Dr. Katharina Morawietz.

The measured demonstrator achieved a heating output of 6 kW at a source temperature of 0 °C and a sink temperature of 55 °C and shows an efficiency of SCOP55 = 3.8 (Seasonal Coefficient of Performance) over the year, which is standard on the market for brine-to-water heat pumps. The SCOP is used to determine the seasonal coefficient of performance of a heat pump within different operating states, which are weighted according to climate zones.

At BAU, the scientists from Fraunhofer ISE will be presenting a further developed version of the demonstrator.

Research and development services for:

Heat pump manufacturer
Housing industry

Project: LCR290

Sustainable Investment Decisions: Transparent Technology Cost Comparison for Heating Systems

For the provision of heat in residential buildings, there are numerous numerous options available that must be compared by the consumer. must compare them. — © Fraunhofer ISE
The GEG-compliant comparison method for heating systems developed at Fraunhofer ISE takes all ecological and economic factors into account.

More and more consumers and investors in the housing market want heating systems that are both sustainable and economical. To date, however, there has been a lack of a standardized data and model basis for evaluating existing technologies. With the requirements of the Building Energy Act (GEG), the need for a comparative assessment method is growing.

To close this gap, Fraunhofer ISE is working together with other Fraunhofer institutes on a comparative method for the ecological and economic evaluation of different heating systems over the entire life cycle and on the definition of suitable data formats. As part of the "Efficient Heating" project, scenarios for single-family and multi-family houses in various stages of renovation are being developed using reference heating systems. The methodology developed at ISE takes into account all economic framework conditions (including CO2 price, energy prices, interest rates) that influence investment decisions over 20 to 30 years and presents these influences in a transparent and comprehensible manner.

As heating systems based on renewable energies often have higher investment costs, end consumers and investors are often reluctant to invest in such systems, despite the lower costs and ecological benefits during the utilization phase. The evaluation method developed in collaboration with Fraunhofer ISE therefore makes it possible to determine the most economical and ecologically sustainable solution for households and investors. At the same time, the project aims to identify the most economically advantageous solutions for the heating transition.

Research and development services for:

Heating manufacturer
Investors
Representatives of the building management
Planning offices

Project: Efficient heating

With our newsletter service, we inform you, our customers, project partners and all interested parties every six months about news from the research and development of Fraunhofer ISE's business units. Here you can find out about the highlights, milestones, new projects and events that have taken place in the past few months relating to the respective key topic and we will inform you about upcoming activities.

Info and registration

Fair

Fair / January 13, 2025 - January 17, 2025

Bau

Hall C2, Booth 528