Sensible storages, which are currently used in district heating networks for seasonal storage of excess heat (e.g. from solar thermal or industrial waste heat), exhibit high space demand, investment costs and heat losses. Within this project, concepts for using innovative storage technologies, e.g. thermochemical storages (TCS) having high heat densities and enabling pressure- and lossless storage, were developed and analyzed on a technological, economic and ecological basis. Additionally, the regulatory framework has been evaluated.
InnoGOK – Investigation of the energetic and ecological usability of solar radiation on urban spaces and paths
Examination of the suitability of street space or other paved or not paved surfaces in urban areas for promoting renewable heat from solar radiation. Thus offers a high potential for increasing energy efficiency and conserving resources in urban contexts. Besides, the dissipation of heat from large solar-heated surfaces promises to prevent urban heat islands.
Within the research project TFlex it was checked if the losses adherent to small district heating networks during low-load periods can be reduced. One possible solution is by deactivating the network and supplying the customers from previously charged decentralized storages. The optimal clustering of the storages and the possibility of solar-charging the storage were calculated with the aim of a guaranteed one-hundred percent heat supply.
EDEN - Developement of a structured data and preparation documentation with a minimized error-proneness for energy performance cerificates.
Current energy performance certificates hold major flaws. Therefore, the presented research initiative aimed at the development of a standardized and easy-to-use, generic Input-Data-Documentation, which ensures the quality of energy certificates for all involved stakeholders. During the development, the documentation had been conducted and for a chosen sample of representative buildings, which is expected to demonstrate the high potential of such a development.
Manage_GeoCity - Development of a method for the coordinated management of geothermal energy in urban areas
Based on the urban region Graz a method had been developed for the coordinated use and management of shallow geothermal energy for heating and cooling as well as seasonal heat storage in urban regions. Ground water flow, different geologic conditions, heating and cooling demand, heat input from solar collectors and industrial waste heat and the possibilities of seasonal heat storage in the subsurface were considered.
Low Tech - High Effect! An overview of sustainable low-tech buildings: realized best practice examples, innovative approaches, principles and systematic solutions
In this study approaches of low-tech buildings were examined and particularly innovative and representative concepts were documented in detail. The aim was to elaborate the current state of the art and the existing know how and knowledge on the basis of realized examples as well as to show potential for further development.
Documentation of available knowledge on the renovation of historical buildings ("Gründerzeitgebäude") as an input for the preparation of 5 demonstration projects as well as the development of an accompanying monitoring system within the scope of the project "Gründerzeit with future".
Evaluation of solar-thermal energy stores using a uniform and marketable system of characteristic numbers
Comparison of solar-thermal energy stores A clear and uniform system of characteristic numbers enables a cost-saving comparison of the efficiency of solar-thermal energy stores of different technologies for the first time and gives important impulses for the market.
City Dialog - Evaluation of future research topics for the "city of the future" through stakeholder dialog.
The integration of key stakeholder views allowed an extensive evaluation and prioritisation of research topics for the "city of the future". The discussion had been organised in workshops with stakeholder groups (public administration, science & research, residents).
The energy concept led Gugler in frame of the conversion and expansion of the company towards plus-energy standard. Significant measures ware a consequent maximum reduction of the energy demand, optimal utilisation of industrial waste-heat, maximum consumption of on-site energy sources, integrated energy production, ecologic load management with comprehensive response- and storage-techniques.
The energy demand calculated in the design phase often differs from measured values in the actual building operation. This projects reviews building automation and operation by presenting a solution how to assess energy efficiency of control strategies in the fields of air conditioning systems, concrete core activation and free cooling. The results are implemented in the demonstration building "Post am Rochus".
EnergyCityConcepts - Methods and concepts for the implementation of sustainable energy systems in cities
Two concrete model regions (small city Gleisdorf and urban city quarter Salzburg-Schallmoos) will be developed and tested using new methodical approaches (interdisciplinary urban and regional energy planning, modeling and simulation). Therefore, it is aimed to substantiate scenarios and concepts for the implementation of defined targets on technical, ecological and economic criteria.
ARIS - Application of non-linear control engineering and implementation of intelligent sensor systems for the improvements of energy efficiency in the building sector
The major goal of the project was the development of innovative control concepts for controlling and optimizing heating, cooling and ventilation systems (HVAC) as well as building loads. The implementation of advanced, energy efficient non-linear control techniques in building management systems is supported by new sensor technologies that are applied to building and energy systems in order to improve their energy-efficient operation.
In the frame of the project a classification system for Smart City Technologies had beed developed, the relevance of a wide range of technologies in terms of their potential contribution to the development of sustainable and more resilient cities with a high quality of life had beed evaluated and a comprehensive classification of the technical maturity of relevant technologies, technical (sub-)systems and technology-related services had been given.
The project aimed at comprehensively analyzing existing approaches for the coordination and regulation of Smart City development in small and medium-sized cities. In the context of case studies, this study combines the analysis of relevant legal-institutional frameworks as well as of governance processes for selected, energy-related fields of urban activity.
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.
R-Bau - Development of a replicable deconstruction strategy for residential buildings to force the recovery-oriented dismantling
The aim of the project is to develop a replicable deconstruction strategy for residential buildings to force the recovery-oriented dismantling. The key aspects of the project are the development of standardized building models in order to analyse the recovery-oriented dismantling process, the design of a deconstruction catalogue and the transfer of the project findings to refurbishment, design and erecting of residential buildings.
E_PROFIL is a set of methods (an IT-supported toolkit) for the elaboration of neighbourhood profiles. The aim of the project is to facilitate an energy and resource efficient development in the planning practice of Austrian cities. Furthermore, the project is an important asset for research and planning activities in Europe and can also be applied to other neighbourhoods.
BIM4BEMS explores use cases that represent the usage of building information models (BIM) in combination with building energy management systems (BEMS) during operation. This enables the interaction between BIM and building management systems (BMS) which improves the analysis and visualization of inefficiencies in facilities.
In this project the application of a solid oxide fuel cell (SOFC) for energy supply (heat and power) of urban areas will be investigated. Due to the high temperature level of the produced heat it would be possible to use this heat for the energy supply of different heat and power consumers (residential buildings, industrial plants, etc.). One aim is to provide the SOFC-heat at several temperature levels in order to establish the advantages of the fuel cell. On the one hand the legal and market-based conditions will be evaluated, on the other hand the technological feasibility will be scoured by the use of CFD-simulation of the heat production.