FFF-TaliSys - Free-form daylight systems for façades and skylights
Project manager overall project: Bartenbach GmbH
Project manager University of Innsbruck: Rainer Pfluger
Project staff: Matthias Werner, Martin Hauer
- Bartenbach GmbH
- Hella
Funding organisation: FFG
Duration: 01.10.2015 - 30.09.2017
Project description
As part of FFF-TaliSys, new concepts for daylight systems based on free-form surface technology are being developed. With the help of this technology, which is widely used in the artificial lighting sector, innovative systems are to be developed that solve the contradictory requirements of daylight systems in the best possible way (glare protection, sun protection, daylight utilisation, transparency). The aim is to develop systems for façades and skylights that do not require any moving parts or complex controls, but still offer optimum visual and thermal functionality as a daylight system. For integration into a complete façade module, both lighting technology and building physics boundary conditions are analysed in order to ensure maximum visual and thermal comfort and to provide the most energy-efficient façade module possible for new buildings and retro-fits.
Initial situation
On the one hand, modern building envelopes form the thermal interface between the indoor and outdoor climate, while at the same time offering the possibility of efficient daylight utilisation. Conventional external or internal shading systems (external blinds, venetian blinds, roller shutters, etc.) provide sun and glare protection through shading, but at the same time prevent daylight from being utilised as natural room lighting. The few daylight control systems currently available are niche products that have hardly become established on the market due to problems that are now well known. The developments of FFF-TaliSys address precisely this point.
Contents and methodological approach
As part of the FFF-TaliSys project, new free-form surface components for integration into façades and roofs (skylights) are being designed for broad application in practice. While free-form surface technology has become more and more state of the art, especially since the triumph of LED lights in artificial lighting, this potential has so far remained untapped in the daylight sector. The calculation methods for free-form surfaces developed in-house at Bartenbach are used to design intelligent daylight components.
The daylight systems are developed and optimised on the basis of predefined lighting and thermal target values. The aim is to create a concept that guarantees both a façade module with a high standard of energy efficiency and at the same time meets the complex visual and thermal requirements of a daylight control system. The systems are also designed according to the low-tech approach so that they offer optimum functionality even without complex control systems and, as far as possible, without moving components. The development of guidelines and requirements for the construction of transparent components (façade or skylight) when integrating daylight control systems from a building physics and lighting technology perspective ensures the subsequent feasibility of the systems in real building projects.
Intended results
- Market and patent research on daylight systems available on the market and patented concepts
- Development of a specification sheet for the thermal design and the conception of the façade structure in the application of daylight-guiding systems
- Investigation of 2 concepts for FFF daylight systems in the façade (sidelight) and development of the most promising concept
- Investigation of 2 concepts for FFF daylight systems in the skylight and development of the most promising concept
- One functional model each for the façade and skylight system developed in more detail and their photometric, thermal and perceptual-psychological evaluation
Publications (University of Innsbruck)
No publications available yet!