TEXTINERGIE : Energy savings with textile blinds
TEXTINERGIE Energy savings with textile blinds
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
TEXTINERGIE : Energy savings with textile blinds
ENERGY SAVINGS STAKES IN FRANCE
Building industry represents
45 % of French global energy consumption g gy p 25 % of greenhouse gas emission
1. Stakes 2. Presentation 3. Questions
Goals
Kyoto protocol POPE Law: factor 4 Energetic performance of buildings (new and existing) Grenelle de lenvironnement : Low Consumption Buildings (50 kWh/m.year) in 2010 for office buildings and in 2012 f all buildings ff for Positive Energy Buildings in 2020 Renovation of the 800 accommodations before 2020 000 less efficient social
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
TEXTINERGIE : Energy savings with textile blinds
ENERGY SAVINGS STAKES IN FRANCE
How solar protection devices are considered
Solar Factor gtot Capacity to transmit/block solar radiation
1. Stakes 2. Presentation 3. Questions
Thermal Transmittance Uw Insulation power of the window
Visual Transmittance Tl Capacity to transmit natural light
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
TEXTINERGIE : Energy savings with textile blinds
ENERGY SAVINGS STAKES IN FRANCE
EXISTING BUILDINGS Installation or replacement l t Window Requirements Maintain or replace the existing solar protection device Installation of a solar protection device gtot 0,15 Residential accommodations gtot 0,15 Air conditioning system Installation of mobile solar protection devices on every windows but those orientated on North or Class 3 or 4 according to EN 14501 gtot 0,35 or Class 2, 3 or 4 according to EN 14501
1. Stakes 2. Presentation 3. Questions
Roof window
Other accommodations
NEW BUILDINGS
Sleeping rooms
gtot a reference solar factor (0,15 to 0,65 depending on the orientation)
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
TEXTINERGIE : Energy savings with textile blinds
PRESENTATION OF TEXTINERGIE
Goals
Evaluate the contribution of solar protection devices to energy p gy savings
1. Stakes 2. Presentation 3. Questions
Quantify the energy savings possibly made by the installation of textile solar protection devices Improve the consideration of thermal and visual performances of products Inform the industry (installers et manufacturers) and prescribers (building designers, architects, )
Comparison of energy needs of a standard office building equipped with textile solar protection devices to the same office without blinds.
Principle
9000 calculations made
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
TEXTINERGIE : Energy savings with textile blinds
PRESENTATION OF TEXTINERGIE
Configuration
The user chooses: The climatic area (within 24 towns), The faade aspect of the building (4 possible orientations),
1. Stakes 2. Presentation 3. Questions
The glazed surface of the office (40% or 80%), The type of glazing (within 3 standardised glazing), The position of the blind (internal or external), The type of textile (two possible types), The colour of the textile (5 possible colours).
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
TEXTINERGIE : Energy savings with textile blinds
PRESENTATION OF TEXTINERGIE
Modelling and hypotheses used
Modelling of an office in the middle of the faade, Hours of occupancy: from 7 am to 7 pm, Visual comfort: 500 lux maximum in the middle of the office
1. Stakes 2. Presentation 3. Questions
Action on the position of the blind, artificial lighting, heating and cooling Results
Textinergie gives two different levels of results: Simplified results: percentage of energy saving associated with air-conditioning and other installations (air-conditioning + heating + artificial lighting), Detailed results: calculated temperature (C); energy needs (kWh), average position of the blind, percentage of energy saving for each unit (air-conditioning, heating and lighting) and average level of natural light (lux).
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
TEXTINERGIE : Energy savings with textile blinds
PRESENTATION OF TEXTINERGIE
How to have access to Textinergie ?
Textinergie is available: On CD-Rom On internet: www.textinergie.org (free access)
1. Stakes 2. Presentation 3. Questions Demonstration
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
TEXTINERGIE : Energy savings with textile blinds
QUESTIONS
1. Stakes 2. Presentation 3. Questions
Syndicat National de la Fermeture, de la Protection Solaire et des professions Associes
