glassdbase: Interpane

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

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Interpane: Ipasol platin 25/14

ipa. platin 25/14 Fl. 6 mm FM, SZR 16 mm Ar, Float 4 mm FM
Interpane

Reference number: J002

Brief information Transmittance Total solar energy transmittance Selectivity index General color rendering index

Transmittance T_e, T_v, T_e/T_v Diagram

	Solar direct transmittance T_e [info]
	Light transmittance T_v [info]
	T_e/T_v [info]

T_e	T_v	T_e/T_v	Angle of incidence
0.119	0.250	0.477	0°
0.117	0.247	0.475	15°
0.114	0.243	0.469	30°
0.107	0.236	0.453	45°
0.103	0.232	0.445	50°
0.098	0.226	0.434	55°
0.091	0.216	0.422	60°
0.082	0.200	0.408	65°
0.076	0.189	0.402	67.5°
0.069	0.173	0.395	70°
0.060	0.155	0.388	72.5°
0.050	0.132	0.381	75°

Reflectance R_e, R_e' Diagram

	Solar direct reflectance R_e [info]
	Solar direct reflectance, inverted light propagation R_e' [info]

R_e	R_e'	Angle of incidence
0.358	0.408	15°
0.358	0.409	30°
0.360	0.419	45°
0.361	0.425	50°
0.367	0.437	55°
0.374	0.455	60°
0.389	0.482	65°
0.401	0.503	67.5°
0.418	0.527	70°
0.437	0.554	72.5°
0.460	0.583	75°

Absorptance A_e, A_e' Diagram

	Solar direct absorptance A_e [info]
	Solar direct absorptance, inverted light propagation A_e' [info]

A_e	A_e'	Angle of incidence
0.524	0.475	15°
0.529	0.478	30°
0.533	0.474	45°
0.536	0.472	50°
0.535	0.465	55°
0.534	0.454	60°
0.530	0.436	65°
0.523	0.421	67.5°
0.514	0.404	70°
0.503	0.386	72.5°
0.490	0.367	75°

Total solar energy transmittance g, g' Diagram

	Total solar energy transmittance g [info]
	Total solar energy transmittance, inverted light propagation g' [info]

g	g'	Angle of incidence
0.146*	0.387*	0°
0.145	0.386	15°
0.141	0.384	30°
0.135	0.375	45°
0.131	0.370	50°
0.126	0.361	55°
0.119	0.348	60°
0.109	0.328	65°
0.103	0.314	67.5°
0.095	0.297	70°
0.086	0.278	72.5°
0.076	0.258	75°

* Extrapolated value

Selectivity index T_v/g [info] Diagram

Selectivity index T_v/g

T_v/g	Angle of incidence
1.708*	0°
1.709	15°
1.719	30°
1.752	45°
1.769	50°
1.793	55°
1.818	60°
1.831	65°
1.831	67.5°
1.822	70°
1.797	72.5°
1.743	75°

* Extrapolated value

Transmittance Reflectance Absorptance Color rendering
Dynamic temperature simulation of a standard room

Spectral transmittance T [info] Diagram


0°	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]

ΔT_max = 4.49°C

Coefficients of functions
T_e, T_v, A_e [info]

T_e	T_v	A_e
-0.79111	-0.025792	-0.75299
0.00037816	-0.00028455	0.00026935
0.75886	0.36271	0.80921
135.75	77.527	93.983
26.243	7.1293	5.3478
0.82924	1.311	0.63528

Secondary internal heat transfer factor [info]

q_i/A_e(φ=0°) = 0.052

Dynamic temperature simulation of a standard room [info]

Location: ZÃƒÂ¼rich
Time period: 1. August - 10. August
Orientation of windows: South
Air change rate: 1.0
initial temperature: 20° C
Standard room: 1A [info]