glassdbase: MGT Mayer Glastechnik

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MGT Mayer Glastechnik: MGTherm HEAT MIRROR HM44/0.6

Float 4mm, Folie HM44, SZR 20 mm, FÃ¼llung SZR Kr, Float 1.1N 4mm
MGT Mayer Glastechnik, Feldkirch, Ã–sterreich

Reference number: F002004

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
0.179	0.350	0.511	0°
0.177	0.348	0.509	15°
0.173	0.342	0.506	30°
0.162	0.322	0.504	45°
0.155	0.307	0.505	50°
0.145	0.285	0.509	55°
0.132	0.257	0.512	60°
0.113	0.219	0.519	65°
0.103	0.197	0.524	67.5°
0.091	0.173	0.528	70°
0.079	0.147	0.536	72.5°
0.065	0.121	0.541	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
0.636	0.520	15°
0.636	0.517	30°
0.646	0.523	45°
0.650	0.526	50°
0.661	0.536	55°
0.673	0.548	60°
0.690	0.567	65°
0.705	0.581	67.5°
0.719	0.596	70°
0.734	0.612	72.5°
0.743	0.630	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
0.187	0.303	15°
0.191	0.310	30°
0.192	0.315	45°
0.195	0.319	50°
0.194	0.319	55°
0.196	0.320	60°
0.197	0.320	65°
0.192	0.316	67.5°
0.190	0.313	70°
0.188	0.309	72.5°
0.191	0.305	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
0.239*	0.218*	0°
0.238	0.217	15°
0.236	0.214	30°
0.225	0.204	45°
0.219	0.197	50°
0.209	0.187	55°
0.196	0.174	60°
0.178	0.156	65°
0.166	0.145	67.5°
0.154	0.133	70°
0.140	0.119	72.5°
0.128	0.106	75°

* Extrapolated value

Selectivity index T_v/g [info] Diagram

Selectivity index T_v/g

T_v/g	Angle of incidence
1.465*	0°
1.459	15°
1.452	30°
1.430	45°
1.401	50°
1.366	55°
1.313	60°
1.229	65°
1.184	67.5°
1.126	70°
1.045	72.5°
0.942	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 = 7.4°C

Coefficients of functions
T_e, T_v, A_e [info]

T_e	T_v	A_e
-0.031789	-0.058922	-1.2149
-0.00011182	-0.00009233	0.00021604
0.45957	0.71758	1.1766
66.88	67.543	101.06
10.615	10.245	5.6808
2.1791	1.7535	0.84137

Secondary internal heat transfer factor [info]

q_i/A_e(φ=0°) = 0.328

Dynamic temperature simulation of a standard room [info]

Location: ZÃ¼rich
Time period: 1. August - 10. August
Orientation of windows: South
Air change rate: 1.0
initial temperature: 20° C
Standard room: 1A [info]