1. The Bestfacade Project R. Waldner 2. State of the art of double skin facades W. Streicher 3. Cutback of non-technological barriers I. Farrou 4. Energy benchmarking R.Duarte 5. Development of a simple calculation method H. Erhorn 6. Best practice guidelines A. Blomsterberg MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 1
Best Facade Best Practice for Double Skin Facades Reinhard Waldner, MCE Anlagenbau Austria
Introduction Basic Requirements for a facade: comfortable indoor climate sound protection good lighting minimal energy input MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 3
Introduction A Double Skin Facade (DSF) can provide: a thermal buffer zone solar preheating of ventilation air energy saving sound protection wind protection with open windows pollutant protection with open windows fire protection nocturnal cooling aesthetics site for incorporating PV cells MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 4
Project aims Best Practice Guidelines based on a comprehensive survey of DSFs Information on built examples of DSF office buildings Avoid application of non relevant concepts of DSFs Confidence concerning operating performance investment and maintenance costs shall be increased MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 5
Workpackages MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 6
Partners MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 7
WP1 State Of the Art Collection of data on DSFs in different countries and climatic regions Centralized Information System Performance Data Development of a coherent typology Basic principles, history MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 8
WP1 State Of the Art Questionnaires investigating thermal behavior, indoor air quality, comfort and user acceptance, energy demand and consumption for heating, cooling, ventilation and lighting Investment-, Maintenance- and Operation Costs Report on State Of the Art Available on. MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 9
WP2 Non-Technological Barriers Two Phases: Analysis of non-technological barriers Strategies to overcome these barriers Results will be incorporated in the dissemination activities MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 10
WP2 Non-Technological Barriers Analysis of Non-Technological Barriers: Legal Financial Institutional Standardization Cultural Social Educational MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 11
WP2 Non-Technological Barriers Workshops and round table discussions Development of strategies to overcome these barriers Best practice examples already built Dissemination of the project results MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 12
WP3 Benchmarks and Certification Using results from WP1 a benchmark system will be developed on the webpage Building owners and operators may compare their energy consumption with other buildings Advice and measures to reduce energy consumption will be offered MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 13
WP4 Simple Calculation Method For an assessment of thermal behaviour complex simulation tools are necessary Extensive iterations are often required No predictions on energy efficiency and user comfort in the early planning phase Development of a monthly balanced calculation method similar to ISO 13790 Annex F Thermal and visual behaviour can be calculated with adequate accuracy for an assessment of potentials MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 14
WP4 Simple Calculation Method Integration with the currently developed CEN-standards Approximation of airflow in the façade interspace Approximation of the utilisation factor of solar gains Reliable prediction on energy consumption in the early planning phase MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 15
WP5 Best Practice Guidelines Design guide with best practice examples Providing basic scientific, technical and economic knowledge on DSFs Case studies, potential advantages and disadvantages Non energy related issues Review of simulation tools MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 16
MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 17
The BESTFACADE project will actively promote the concept of double skin facades. Information supporting the design of energy efficient and healthy office buildings equipped with DSFs. Detailed practical information in order to design, choose, manage, use and maintain double skin facades. MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 18
Designers can avoid the application of not well functioning concepts of DSFs resulting in increased energy consumption and bad indoor climate. With the best practice guidelines the knowledge and confidence concerning performance, investment, operation and maintenance of DSFs shall be increased. MCE Anlagenbau Austria GmbH & Co 22.11.2006 - page 19