glassdbase: 'BVB'

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The independent and comprehensive database for building glass.   Methods of measurements   Glossary

'BVB': Be 4/6 Seitenscheibe

6mm
Artikel Nr. 29 23 30
'BVB'

Reference number: S003

Transmittance Te, Tv, Te/TvDiagram
Solar direct transmittance Te  [info]
Light transmittance Tv  [info]
Te/Tv  [info]
TeTvTe/TvAngle of incidence
0.4420.7340.602
0.4370.7290.59915°
0.4240.7190.59030°
0.4010.6970.57645°
0.3890.6820.57150°
0.3740.6620.56555°
0.3540.6330.56060°
0.3270.5910.55465°
0.3100.5630.55167.5°
0.2900.5300.54870°
0.2660.4880.54672.5°
0.2300.4240.54475°




Reflectance Re, Re'Diagram
Solar direct reflectance Re  [info]
Solar direct reflectance, inverted light propagation Re'  [info]
ReRe'Angle of incidence
0.0580.05615°
0.0600.05730°
0.0690.06645°
0.0770.07450°
0.0900.08755°
0.1110.10860°
0.1450.14265°
0.1690.16567.5°
0.2000.19670°
0.2370.23172.5°
0.2860.27875°




Absorptance Ae, Ae'Diagram
Solar direct absorptance Ae  [info]
Solar direct absorptance, inverted light propagation Ae'  [info]
AeAe'Angle of incidence
0.5050.50715°
0.5160.51830°
0.5300.53245°
0.5340.53650°
0.5360.53855°
0.5350.53760°
0.5280.53165°
0.5210.52567.5°
0.5100.51470°
0.4970.50272.5°
0.4840.49275°




Total solar energy transmittance g, g'Diagram
Total solar energy transmittance g  [info]
Total solar energy transmittance, inverted light propagation g'  [info]
gg'Angle of incidence
0.601*0.602*
0.6000.60115°
0.5910.59230°
0.5720.57345°
0.5620.56350°
0.5470.54855°
0.5270.52860°
0.4980.49965°
0.4790.48067.5°
0.4550.45670°
0.4270.42972.5°
0.3870.38975°

* Extrapolated value




Selectivity index Tv/g  [info]Diagram
Selectivity index Tv/g
Tv/gAngle of incidence
1.221*
1.21615°
1.21730°
1.21745°
1.21450°
1.21055°
1.20160°
1.18765°
1.17667.5°
1.16370°
1.14472.5°
1.09675°

* Extrapolated value




 
 
Spectral transmittance T  [info]Diagram

            
15°30°45°50°55°60°65°67.5°70°72.5°75°

  



Spectral reflectance R  [info]Diagram

           
15°30°45°50°55°60°65°67.5°70°72.5°75°

  



Spectral reflectance, inverted light propagation R'  [info]Diagram

           
15°30°45°50°55°60°65°67.5°70°72.5°75°

  



Spectral absorptance A  [info]Diagram

           
15°30°45°50°55°60°65°67.5°70°72.5°75°

  



Spectral absorptance, inverted light propagation A'  [info]Diagram

           
15°30°45°50°55°60°65°67.5°70°72.5°75°

  



 
Maximum temperature rise in temperature simulation (°C)  [info]


ΔTmax = 12.23°C





Coefficients of functions
Te, Tv, Ae  [info]

TeTvAe
-1.401-0.45105-1.2107
-0.0002537-0.000585010.0007815
2.88532.27362.7833
101.8780.87191.348
15.4389.55086.3034
1.56421.91371.6327




Secondary internal heat transfer factor  [info]

qi/Ae(φ=0°) = 0.323





Dynamic temperature simulation of a standard room  [info]

Location: Zürich
Time period: 1. August - 10. August
Orientation of windows: South
Air change rate: 1.0
initial temperature: 20° C
Standard room: 1A  [info]

Diagram
 Internal temperature
 External temperature
 Global radiation on a horizontally oriented surface
 Radiation on vertically oriented glass surface


 
General color rendering index Ra  [info]Diagram
General color rendering index Ra
RaAngle of incidence
89.1
89.015°
88.530°
87.845°
87.550°
87.155°
86.860°
86.465°
86.267.5°
86.070°
85.772.5°
84.875°




Brief information

No entries



Color rendering of 8 test colors according to EN 410: φ=0°  [info]Diagram




Color rendering of 8 test colors according to EN 410: φ=75°  [info]Diagram




ab-graph (color rendering)  [info]

Diagram



Color of transmitted D65-light  [info]Diagram




Color of reflected D65-light external  [info]Diagram




Color of reflected D65-light internal  [info]Diagram




ab-graph (T, R, R')  [info]

Diagram