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Technical Advisory Service

Introduction to glass functions 2008. Technical Advisory Service. Glazing functions – Basis function. I begin. to understand. invented. windows. why. man. Basic functions. Glazing functions – Basis function. Basic functions. Bring light Look up inside / outside

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Technical Advisory Service

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  1. Introduction to glass functions 2008 Technical Advisory Service

  2. Glazing functions – Basis function I begin to understand invented windows why man • Basic functions

  3. Glazing functions – Basis function • Basic functions • Bring light • Look up inside / outside • Protection against wind and rain

  4. Glazing functions • Other functions Decoration

  5. Glazing functions • Basic functions • Thermal insulation • Solar and light control • Acoustic insulation • Safety and security • Architecture and decoration

  6. Glazing functions – Thermal insulation Chaleur High t° Low t°

  7. Glazing functions – Thermal insulation 4 glass = 1 W/(m K) insulating material  0,065 W/(m K) : thermal conductivity

  8. Glazing functions – Thermal insulation 4 19 mm Ug = 5,8 W/(m² K) Ug = 5,4 W/(m² K)

  9. Glazing functions – Thermal insulation 700 mm Ug = 1.1 W/(m² K)

  10. Glazing functions – Thermal insulation glass = 1 W/(m K) air = 0,025 W/(m K) Ug = 5,8 W/(m² K) Ug = 2,9 W/(m² K)

  11. Glazing functions – Thermal insulation argon= 0,017 W/(m K) Ar Ug = 2,9 W/(m² K) Ug  2,6 W/(m² K)

  12. Glazing functions – Thermal insulation Ug = 2,9 W/(m² K) Ug  2,0 W/(m² K)

  13. Glazing functions – Thermal insulation Heat Ug = 2,9 W/(m² K) Ug = 1,1 à 2,0 W/(m² K)

  14. Glazing functions – Thermal insulation Ar Ug = 5,8 W/(m² K) Ug = 2,9 W/(m² K) Ug from 1,4 to 2,0 W/(m² K) Ug = 1,1 W/(m² K) Summary:

  15. Glazing functions – Thermal insulation

  16. CDR-CES Headquarter Brussels (Belgium) Thermoplus Energy

  17. Glazing functions – Thermal insulation Possibilities: • Thermobel croisillons • Thermobel luxaclair

  18. Thermal losses of a dwelling... Roof : 20% Walls : 25% Ground : 20% Windows account for about 35% !

  19. Glazing functions – Thermal insulation 20° 18,5° 17,3° 12,8° 5,6° 0° Thermobel Triple 4-15 ar-4 -15 ar-4Ug = 0,6 Planibel 4 mm Ug =5,8 Thermobel 4-12-4 mm Ug = 2,9 Thermobel Top N+ 4-15 ar-4 mm Ug = 1,1 Outside Inside

  20. Glazing functions • Basic functions • Thermal insulation • Solar and light control • Acoustic insulation • Safety and security • Architecture and decoration

  21. Glazing functions – Solar and light control Reminder Low T° High T° Heat

  22. Glazing functions – Solar and light control Heat

  23. Glazing functions – Solar and light control

  24. Glazing functions – Solar and light control Energy UV Light Short Infra-red Intensity(W/m²) 1.5 1.0 0.5 0 2500 280 380 780 0 Wave length (nm)

  25. Glazing functions – Solar and light control Solar radiancy Radiators Close IR Radio waves Visible Long IR

  26. Glazing functions – Solar and light control 1. Solar radiance: UV, visual, short IR 2. Absorbtion: object heating 3. Things give heat out (long IR) 4. Glass is opaque against long IR waves = Greenhouse effect

  27. Glazing functions – Solar and light control 1 LR rv LT tv 0,90 0,10 SG clear Lights factors tv = LT = transmitted light incident light Light

  28. Glazing functions – Solar and light control 1 0,85 DET te ER re EAae 0,08 0,87 qe qi 0,05 0,02 SG clear Energetic factors SF = g = transmitted heat incident heat }g

  29. Glazing functions – Solar and light control Summary: a glazing is caracterised by g and tv

  30. How to decrease the solar factor ? • Modify the glass composition (mainly changes the absorption) • tinted float Glazing functions – Solar and light control • Apply a coating...(mainly changes the energy reflection) • pyrolitic coatings • Stopsol • Sunergy • magnetron coatings • Stopray

  31. Glazing functions – Solar and light control Solar factor : 0,40 to 0,70 Light transmission: 0,45 to 0,70 ae

  32. Glazing functions – Solar and light control Coloured Planibel Linea Azzura Green Bronze Grey Azur Dark Blue Priva Blue

  33. Glazing functions – Solar and light control From Planibel bronze... …to Planibel Azur

  34. Glazing functions – Solar and light control re Solar factor : 0,10 to 0,60 Light transmission : 0,05 to 0,75

  35. Glazing functions – Solar and light control 1 2 2 • To CVD process (Chemical Vapour Deposition) (2) • Best lateral uniformity • Higher reactivity • « Multicoating » possibilities 1 • From « Spray » process (1) • Micro-drops screening

  36. Glazing functions – Solar and light control Pyrolitic coating: Stopsol

  37. Glazing functions – Solar and light control Espace Rolin Brussels Stopsol Silverlight Green #1

  38. Aspect RL (#2) Clear Green Bronze Grey Azur Priva Blue Dark Blue couche Neutre 9% X X X Glazing functions – Solar and light control Pyrolitic coating: Sunergy

  39. La SamaritaineParis, FranceSunergy clear

  40. Buffer Buffer Unload Washer Load Coat zones Inspection Glazing functions – Solar and light control Magnetron coating • Dépôt de couche « off-line » • Procédé « sous-vide  »

  41. Glazing functions – Solar and light control Magnetron coating: Stopray

  42. Mémorial Roi Baudoin Brussels Stopray Elite

  43. Paris Austerlitz Stopray Neutral – Stopray Carat

  44. Glazing functions – Solar and light control

  45. Glazing functions – Solar and light control

  46. Glazing functions – Solar and light control If the difference of temperature between 2 points of a glass is higher than 30°C, there is a risk of thermal breakage

  47. Glazing functions – Solar and light control

  48. Glazing functions – Solar and light control • Parameters characterising a glas: • Ug: thermal insulation  heating • g: solar control  air conditioning • tv: light transmission  lighting • Aesthetic criterias

  49. Glazing functions • Basic functions • Thermal insulation • Solar and light control • Acoustic insulation • Safety and security • Architecture and decoration

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