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Project manager overall project Austria: Martin Hauer, Bartenbach GmbH
Project manager overall project China: Zhen Tian, Hunan University
Project partner Austria:
Bartenbach GmbH
AEE - Institute for Sustainable Technologies
Architectural office Reinberg ZT GmbH
HELLA Sonnen- und Wetterschutztechnik GmbH
University of Innsbruck, Energy Efficient Building Unit
Project partner China:
Hunan University, School of Architecture
Beijing GBSWARE Software Inc.
China Academy of Building Research
China Construction Fifth Engineering Division Corp., Ltd.
Funding organisation: Federal Ministry for Climate Protection, Environment, Energy, Mobility, Innovation and Technology (BMK) represented by Österreichische Forschungsförderungsgesellschaft mbH (FFG)
Funding programme: TECXPORT: Bilateral RTI calls for proposals 2022
Programme: Research Cooperation International Energy Agency (IEA)
Duration: 01.01.2024 to 31.12.2025
Summary
To address the rapidly changing challenges in terms of daylighting, solar shading and solar active systems in buildings, the CFS4LowCarb research project focuses on the development of complex fenestration systems and corresponding compliance tools that enable planning, evaluation and improvement of daylight utilisation while reducing cooling demand through intelligent shading solutions. In addition, the development of new attractive and energy-efficient façade systems through the integration of solar-active components (façade-integrated photovoltaics) into transparent building components is being investigated. This is an essential building block for increasing the energy efficiency of buildings and thus contributing to the decarbonisation of the built environment. The proposed methods will be tested and evaluated for selected CFS solutions in transparent façades in virtual and real case studies by integrating them into Digital Twin test environments in Austria and China.
Motivation
China and Austria - like all countries in the world - are facing a rapid increase in the use of mechanical air conditioning and oversized HVAC systems in buildings. This development is driven by several factors, such as the demand for transparent façades and windows, urbanisation, the effects of climate change and increasing comfort demands combined with global economic growth. Integrative planning of daylighting, cooling and solar active systems in buildings is inevitable for future-proof buildings. It is therefore essential to steer this development towards sustainable solutions for complex façade systems that are based on scientific findings.
Contents and objectives
The CFS4LowCarb research project focuses on the development of complex fenestration systems and corresponding compliance tools that enable the planning, evaluation and improvement of daylight utilisation while reducing cooling requirements through intelligent shading solutions. In addition, the development of new attractive and energy-efficient façade systems through the integration of solar-active components (façade-integrated photovoltaics) into transparent building components is being investigated. This is an essential building block for increasing the energy efficiency of buildings and thus contributing to the decarbonisation of the built environment. The proposed methods will be tested and evaluated for selected CFS solutions in transparent façades in virtual and real case studies by integrating them into Digital Twin test environments in Austria and China.
Methodology
To achieve the proposed objectives, the project researches technical measures and multidimensional synergy and optimisation solutions for transparent façades, develops and implements analysis and evaluation tools, supports research and development of business technologies and promotes international research cooperation. The application of key technologies is intended to promote scientific business networking between Austria and China.
Expected results
Rapid simulation models based on existing matrix calculation methods to characterise daylighting systems and digital design workflows.
Calculation methods for evaluating solar reflections in terms of glare and heat, as well as initial design guidelines for CFS in urban areas.
New possibilities for active energy generation with (semi-)transparent CFS by integrating photovoltaics, daylight technology and solar shading.
In-depth understanding of the spectral properties of solar radiation for different sky conditions and improvement of the calculation accuracy of PV systems.
Optimisation of microclimate in the urban context with regard to avoiding overheating through the use of innovative materials ("radiative cooling").
Evaluation of carbon emissions in the life cycle for selected CFS solutions and implementation using several real planning examples.
