Development of a "Light Well" for daylight transparent, highly energy-efficient, multi-story buildings
Daylight supply of multi-story buildings with the help of rooflight openings. Reflecting vertical ducts transport light down to the lowermost floor. The idea promises new building structures with daylight transparency and high energy-efficiency that have a minimal demand of artificial light and cooling at optimal comfort.
The overall objective of the present project is to develop and implement an optimal overheating protection system based on polymeric materials. The aim is to reduce maximum room temperatures in buildings caused by facade integrated solar-thermal collectors in stagnation.
In the course of DALEC an online concept evaluation tool for architects, building engineers, lighting designers and building owners was developed. Although easy to use, the software accounts for the complex thermal and light processes in buildings and allows a simple evaluation of heating, cooling and electric lighting loads. Not only energy, but also user behavior were considered (e.g. in terms of glare protection) and visual and thermal comfort were evaluated. This novel and innovative, holistic approach makes sustainable and energy efficient building design possible for new buildings as well as refurbishment.
The aim of this project was to advance the state of the art in the engineering of double-leaf building facades that facilitate natural ventilation while providing sufficient sound insulation. Realization of natural (window) ventilation is in some instances difficult due to a number of factors. Thereby, noise pollution (especially traffic noise) plays an important role. To address these issues, the project explored innovative solutions in terms of facade constructions for concurrent natural ventilation and noise control.
KELVIN - Reducing the urban heat island effect via improving the reflective properties of buildings and urban areas
The aim of this project was to estimate the potential to reduce urban heat islands via low-tech measures such as the variation of the surface albedo, using the City of Vienna as an example. The project has also assessed the energy savings and greenhouse gas emission reductions due to the decreased energy demand for cooling as a result of such measures.
This project targets the further development of windows with integrated vacuum glazing. Such glass products regularly feature a very low Ug-value, and their dimension is in comparison to insulation glass thin and light. As such, these products offer a new alternative for highly-insulating window constructions, and thus also for energy-efficiency measures in buildings. The project is based on the findings of a previous exploratory project (MOTIVE) and focuses on the construction of functional prototypes of vacuum glass windows together with business partners.
Knowledge consolidation of the exploratory project VIG_SYS_RENO; This project focused on the application of vacuum glass in existing casement windows for purposes of energetic performance improvement of buildings. Expected results include new insights about and a guideline for the application and utilization of vacuum glass products in existing window systems.
In the course of the project FFF-TaliSys novel daylighting systems based on freeform surface technology were developed and implemented into functional models, thus, innovative systems that solve the contradictory requirements of daylighting systems.
PVOPTI-Ray, Optimization of reflecting materials and photovoltaics in urban environment with respect to energy balance and bioclimate.
Within the scope of the project PVOPTI_Ray the influence of reflection and energy balance on the performance of building integrated photovoltaics (PV) in complex urban environment have been investigated. Equally the influence of PV modules and of the energy conversion of solar energy at the PV module surface has an impact on micro climate and therefore also on pedestrians who are exposed to the radiation fluxes. This was also investigated.
VisErgyControl - Integral control system for daylight and artificial lighting for high visual and melanopic comfort with minimized primary energy consumption
Within the project VisErgyControl an integral, simulation-based, energy-efficient open loop daylight and artificial lighting control system had been developed. The research project focuses on the visual and melanopic requirements of users while minimizing the energy consumption for heating and cooling.
EnerPHit-green concept Modernisation of a historic building with application of an aerogel insulation plaster
This demonstration project shows the comprehensive modernization of a historic building within the constraints of a regional protection zone. By using the Aerogel high-performance insulating plaster, a comprehensive energy-efficient building refurbishment had been realized without changing the outer appearance of the façade.
Populations with high exposure to noise emissions will generally agree: Noise means trouble. The aim of project RAARA is to develop a simple, intuitive albeit accurate method for reducing noise imissions in urban areas. This method involves placing a noise-source into its planned real-world destination prior to actual installation, by means of augmented reality. The ensuing sound-imissions are then made tangible by means of sound effects and coloured visualizations. This exceptional approach will facilitate planning for heating and cooling devices and thus reduce noise pollution in urban areas. This, in turn, can contribute to an increase in societal acceptance and investment in renewable energy.
The project "Urban wind energy" aims to create the basis for the assessment of roof-mounted small wind turbines (SWT) in urban areas. Therefore, methods for the characterisation of turbulent wind flow fields are developed and on the other hand the impacts of turbulent wind conditions with reference to selected turbulence indicators on the performance of small wind turbines are investigated. The overall aim of the project is to address the question how to evaluate sites in urban areas for the application of small wind turbines.
The goal of FitNeS is the development of modular split heat pumps with compact and silent façade-integrated outdoor units for heating and domestic hot water preparation (and optionally cooling in combination with PV). The outstanding features of the concept are a modular design with a high degree of prefabrication and representing a visually and architectonically attractive, economic and sustainable solution for both new constructions and renovations. One of the main development goals is the minimization of sound emissions by means of optimized flow control.
LessIsMore - Energy efficient human centric lighting by innovative components and daylight integration
Human Centric Lighting (HCL) is focused on the positive visual and non-visual (biological) effects of light on humans, but is wasting energy by the inefficient use of components and daylight. In LessIsMore an exemplary pilot installation will be developed and evaluated.
Exploration of window systems with innovative glass - especially vacuum insulating glass - for building renovation
Exploration of the use of the first fabricable highly insulating vacuum glazing (VG) for highly efficient window systems specifically for the renovation of existing buildings via Verification of the availability and performance of Vacuum Glazing VG worldwide, concepts for structural optimization and thermal simulations of integrated systems, investigation of typical applications and market potential studies and identification of achievable energy savings for single buildings and settlements.
Syn[En]ergy: Development of Potential Synergy Effects between the Interdependency of Urban Planning goals and Photovoltaic Usage on Open Urban Landscapes
Open spaces such as parking lots, brownfields and some categories of recreation areas offer an underutilised potential for photovoltaics in urban regions. In the course of Syn[En]ergy an inter- and transdisciplinary approach potential synergies and conflicts with other use demands were investigated, a typology and practical solutions for selected areas with regard to requirements from economy, urban planning and design, legal as well social aspects developed, and then evaluated by stakeholders from enterprises, administration and the general public.
SmallWindPower@Home - Impact assessment of building-mounted small wind turbines on performance, people, building and environment
Within the project SmallWindPower@Home the impact of complex obstacles on the local flow pattern as well as on the inflow and the performance of different building-mounted small wind turbines (SWT) will be evaluated. Furthermore the effects of these building-mounted SWT on the building, the resident people and the direct environment will be analysed.
The motivation for developing the project "Clay Passiv Office-Building Tattendorf" was the dissatisfaction with the situation of a great difference in the state of technology in three fields relevant to the research project: 1) sustainable production of energy , 2) sustainable energy conservation technologies and 3) use of sustainable building materials.
An integrated technical energy plus office concept without additional building costs demonstrates the feasibility of such projects instancing a concrete office project with 50.000 m² floor area in Vienna with economical cost consideration.