glassdbase: POe

Deutsch Français English

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

Show list of glasses

POe: M-Glas

Tau_ideal (x,y,z)*V^1/3
model glas with minimal solar transmittance
POe

Reference number: T_idealV33

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
0.231	0.693	0.334	0°
0.228	0.681	0.334	15°
0.221	0.662	0.334	30°
0.206	0.618	0.334	45°
0.197	0.590	0.334	50°
0.184	0.550	0.334	55°
0.165	0.495	0.334	60°
0.141	0.423	0.334	65°
0.127	0.381	0.334	67.5°
0.112	0.336	0.334	70°
0.096	0.289	0.334	72.5°
0.080	0.240	0.334	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
0.772	0.772	15°
0.779	0.779	30°
0.794	0.794	45°
0.803	0.803	50°
0.816	0.816	55°
0.835	0.835	60°
0.859	0.859	65°
0.873	0.873	67.5°
0.888	0.888	70°
0.904	0.904	72.5°
0.920	0.920	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
0.000	0.000	15°
0.000	0.000	30°
0.000	0.000	45°
0.000	0.000	50°
0.000	0.000	55°
0.000	0.000	60°
0.000	0.000	65°
0.000	0.000	67.5°
0.000	0.000	70°
0.000	0.000	72.5°
0.000	0.000	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
0.231*	0.231*	0°
0.228	0.228	15°
0.221	0.221	30°
0.206	0.206	45°
0.197	0.197	50°
0.184	0.184	55°
0.165	0.165	60°
0.141	0.141	65°
0.127	0.127	67.5°
0.112	0.112	70°
0.096	0.096	72.5°
0.080	0.080	75°

* Extrapolated value

Selectivity index T_v/g [info] Diagram

Selectivity index T_v/g

T_v/g	Angle of incidence
2.993*	0°
2.993	15°
2.993	30°
2.993	45°
2.993	50°
2.993	55°
2.993	60°
2.993	65°
2.993	67.5°
2.993	70°
2.993	72.5°
2.993	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 = 5.95°C

Coefficients of functions
T_e, T_v, A_e [info]

T_e	T_v	A_e
-0.01897559	-0.05680841	0.0
-0.00027331	-0.00081822	0.0
0.41016815	1.22794635	0.0
69.049	69.049	1.0
10.192	10.192	1.0
1.631	1.631	1.0

Secondary internal heat transfer factor [info]

q_i/A_e(φ=0°) = 0

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]