There are 29 results.
IEA EBC Annex 55: Reliability of Energy Efficient Building Retrofitting - Probability Assessment of Performance & Cost (RAP-RETRO)
The scope of the project is to develop and provide decision support data and tools for energy retrofitting measures. The tools will be based on probabilistic methodologies for prediction of energy use, life cycle cost and functional performance. The impact of uncertainty on the performance and costs will be considered. Methods based on probability give powerful tools that can provide us with reliable ranges for the outcome.
IEA EBC Annex 56 – Cost Effective Energy and Carbon Emission Optimization in Building Renovation
The objective of the IEA EBC Annex 56 project was to develop a methodology for cost effective energy and carbon emissions optimization in building renovation. Within the frame of the project this methodology was developed and furthermore also innovative renovation projects were collected and analyzed, which should perform as best practice examples.
IEA EBC Annex 60: New generation computational tools for building and community energy systems based on the Modelica and Functional Mockup Interface standards
The objective was to develop and demonstrate next-generation computational tools that allow building and community energy grids to be designed and operated as integrated systems. The work conducted in Annex 60 has helped to share, further develop and deploy free open-source contributions of previously uncoordinated activities in modeling and simulation, based on the Modelica and Functional Mockup Interface standards.
IEA EBC Annex 61 - Business and Technical Concepts for Deep Energy Retrofit of Public Buildings
Target of IEA EBC Annex 61 was the development of technical and economical concepts for Deep Energy Retrofit of public buildings. To force high-quality and energy efficient retrofit, besides the enhancement and dissemination of innovative, technical retrofit concepts, the focus was in the development of innovative business models (energy-contracting).
IEA EBC Annex 62: Ventilative Cooling
The main goal of the Annex 62 is to make ventilative cooling an attractive and energy efficient cooling solution to avoid overheating in buildings. Ventilation is already present in buildings through mechanical and/or natural systems and it can remove excess heat gains as well as increase air velocities to widen the thermal comfort range. The results from the Annex facilitate better possibilities for both design purposes and for energy performance calculation.
IEA EBC Annex 63: Implementation of Energy Strategies in Communities
As part of the "Annex 63" project, Austria has worked with 10 other countries to develop guidelines for the successful implementation of energy strategies at local level. The results include support for nine strategic measures, descriptions of case studies, support materials and recommendations for different target groups.
IEA EBC Annex 64: Optimised Performance of Energy Supply Systems with Exergy Principles (Working period 2014-2018)
To reduce CO2 emissions in cities, an overall understanding of energy conversion processes is necessary, which also takes temperature levels into account. This is particularly important when alternative heat sources such as waste heat, ambient heat, solar and geothermal energy are to be used, as these often have a low temperature level, i.e. a low exergy content. Accordingly, urban energy systems are analysed and optimised within the framework of the IEA EBC Annex 64 with the help of the exergy approach.
IEA EBC Annex 66: Definition and Simulation of Occupant Behavior in Buildings
Given the considerable implications of occupants' presence and behavior for buildings’ performance, IEA EBC Annex 66 aims to set up a standard occupant behavior definition platform, establish a quantitative simulation methodology to model occupant behavior in buildings, and understand the influence of occupant behavior on building energy use and the indoor environment.
IEA EBC Annex 67: Energy Flexible Buildings (working period 2015 - 2019)
The project increased the knowledge on building Energy Flexibility and the regarding potential buildings can provide to energy grids. The critical aspects and possible solutions to utilize the Energy Flexibility that buildings can provide were identified and a report of the “Principles of Energy Flexible Buildings” will be published in 2019.
IEA EBC Annex 68: Indoor Air Quality Design and Control in Low Energy Residential Buildings
In this project, the scientific basis and data for a coupled calculation and evaluation of indoor air quality and energy efficiency of residential buildings were developed. Assessment metrics and detailed air pollutant models were developed and integrated into the building simulation to derive guidance for the planning and operation of energy-efficient residential buildings.
IEA EBC Annex 70: Building Energy Epidemiology: Analysis of Real Building Energy Use at Scale
Within the framework of the IEA-EBC Annex 70, causes of deviations between calculated and actual energy consumption in buildings were empirically investigated and requirements for data quality, characteristics and security were developed. Furthermore, recommendations were developed regarding the use of internationally uniform standards and methods for data collection, processing and evaluation.
IEA EBC Annex 71: Building Energy Performance Assessment Based on In-situ Measurements
The requirements on building envelope and on building technology are steadily increasing. There is a lack of measurement and analysis methods to control the quality of the built implementation and to optimize the building operation. This project developed a methodological basis to enable an in-situ evaluation of the actual energy performance and building operation. For this purpose, it investigated methods to generate data-driven building models favouring the use of already available on-board data.
IEA EBC Annex 72: Assessing life cycle related environmental impacts caused by buildings
The construction sector has great potential to reduce its energy consumption and the associated environmental impacts. Therefore. the IEA EBC Annex 72 focuses on the harmonization of methods for the assessment of construction-specific and operational environmental impacts (primary energy requirements, greenhouse gas emissions and otherindicators) throughout the life cycle of buildings.
IEA EBC Annex 73: Towards Net Zero Energy Resilient Public Communities
Public buildings such as hospitals and educational institutions often house critical infrastructure that depends on sufficient energy and resource supply. The aim of the annex was to develop tools for the planning process of resilient, efficient and low-emission energy systems for such building clusters.
IEA EBC Annex 75: Cost-effective Building Renovation at District Level Combining Energy Efficiency & Renewables
For the transformation of existing buildings to nearly zero energy buildings with low greenhouse gas emissions it is important to know which strategy is most cost efficient to reduce primary energy demand and greenhouse gas emissions of the buildings. Especially the right balance between renewable energy measures und energy efficiency measures is of high importance. To give an answer to this topic is goal of this project.
IEA EBC Annex 79: Occupant-Centric Building Design and Operation
The IEA EBC Annex 79 aims to provide new insights into comfort-related occupant behaviour in buildings and its impact on building energy performance as well as occupant-centric building design and operation.
IEA EBC Annex 80: Resilient Cooling for Residential and Small Non-Residential Buildings
The rapidly increasing cooling demand for buildings - internationally as well as in Austria - requires further development and application of low energy and low carbon cooling solutions on a large scale. The Annex 80 is meeting this challenge boosting the development and implementation of appropriate cooling solutions by transferring knowledge and coordinating international research endeavours.
IEA EBC Annex 81: Data-Driven Smart Buildings
The latest developments in digitization have the potential to significantly reduce the costs of building operations. The annex is intended to improve access to low-cost, high-quality data from buildings and to support the development of data-driven energy efficiency applications and analyses. This enables the optimization of building controls in real time and offers energy efficiency data and decision support for building managers.
IEA EBC Annex 82: Energy flexible buildings towards resilient low carbon energy systems
The aim of the Annex is to gain knowledge about the energy flexibility services that buildings and clusters of buildings may deliver to different types of energy networks. The project increases the knowledge about the barriers and motivation for the stakeholders. Their constructive involvement is a key for making building energy flexibility a value for the resilience of future energy networks.
IEA EBC Annex 83 - Positive Energy Districts
A positive energy district (PED) is an urban area/neighbourhood that is able to generate more energy than it consumes and is agile/flexible enough to respond to energy market fluctuations. This is where the IEA-Annex 83 and commissioned leading Austrian research institutions come in to collect, systematise, synthesise and process the knowledge and experience of the international scientific community on PEDs in a form that is understandable for practitioners.