glassdbase: Pilkington

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Pilkington: Insulight Therm Pro

Optifloat 6mm, Argon 16mm, Low-E Pro 4mm, 60 x 1200 mm
Low-E
Pilkington

Reference number: H025

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
0.527	0.794	0.663	0°
0.522	0.791	0.661	15°
0.513	0.782	0.655	30°
0.488	0.750	0.650	45°
0.471	0.727	0.648	50°
0.449	0.693	0.648	55°
0.416	0.642	0.648	60°
0.370	0.570	0.650	65°
0.341	0.525	0.650	67.5°
0.308	0.473	0.652	70°
0.272	0.416	0.653	72.5°
0.229	0.351	0.654	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
0.242	0.259	15°
0.244	0.260	30°
0.259	0.276	45°
0.272	0.288	50°
0.292	0.309	55°
0.323	0.338	60°
0.370	0.384	65°
0.401	0.414	67.5°
0.439	0.450	70°
0.479	0.489	72.5°
0.528	0.538	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
0.236	0.219	15°
0.244	0.227	30°
0.253	0.236	45°
0.257	0.240	50°
0.259	0.243	55°
0.261	0.245	60°
0.260	0.246	65°
0.257	0.245	67.5°
0.253	0.242	70°
0.249	0.239	72.5°
0.243	0.233	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
0.613*	0.575*	0°
0.611	0.572	15°
0.604	0.565	30°
0.582	0.542	45°
0.568	0.527	50°
0.545	0.504	55°
0.514	0.472	60°
0.467	0.426	65°
0.437	0.397	67.5°
0.403	0.364	70°
0.365	0.327	72.5°
0.320	0.283	75°

* Extrapolated value

Selectivity index T_v/g [info] Diagram

Selectivity index T_v/g

T_v/g	Angle of incidence
1.297*	0°
1.295	15°
1.295	30°
1.289	45°
1.282	50°
1.270	55°
1.251	60°
1.219	65°
1.200	67.5°
1.173	70°
1.141	72.5°
1.095	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 = 16.6°C

Coefficients of functions
T_e, T_v, A_e [info]

T_e	T_v	A_e
-0.12518	-0.21168	-0.39066
-0.00040581	-0.0002426	0.0005564
0.65605	0.74513	0.67803
78.737	81.131	90.596
10.074	9.8776	5.3507
1.0038	0.73983	1.0956

Secondary internal heat transfer factor [info]

q_i/A_e(φ=0°) = 0.374

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]