Whole Panel Heat Transfer measurements from NIST

Gas-Filled Panels
high performance insulation

Windows & Daylighting | Building Technologies | Environmental Energy Technologies Division | Berkeley Lab

Whole panel measurements from NIST

Whole panel thermal performance measurements.
Testing Conducted at NIST in August 1995.

Test Information		Nominal Size			Boundary Conditions				Experimtal Results						Corrected Experimental Results
					Air Temp.		Convective Coefficients		Mean Panel Temp.	Panel Thickness at Mean Temperature	R-Value		Thermal Conductivity	Thermal Resistivity	R-value		Thermal Conducivity	Thermal Resistivity
Test Identification	Test Date	Width (m)	Height (m)	Thickness (mm)	Front °C	Rear °C	Front W/m²°C	Rear W/m²°C	°C	(mm)	m²°C/W	h-ft^F/Btu	W/mK	mK/W	m²C/W	hft²°F/Btu	W/mk	mk/W
LBL-274-080295¹	8-2-95	.69215	.4445	25.4	22.5	2.6	6.9	19.0	11.9	25.2	2.18	12.4	.01156	86.5	2.30	13.1	.01096	91.27
LBL-274-080395¹	8-3-95	.69215	.4445	25.4	22.4	-5.9	7.0	21.1	7.3	24.9	2.21	12.6	.01126	88.8	2.31	13.1	.01077	92.83
LBL-275-073195²	7-31-95	.69215	.4445	25.4	21.3	-5.9	7.9	22.6	6.8	24.1	3.22	18.3	.00749	133.6	3.24	18.4	.00744	134.34
LBL-275-080195²	8-1-95	.69215	.4445	25.4	21.5	2.6	8.0	20.6	11.5	24.4	3.24	18.4	.00754	132.6	3.22	18.3	.00759	131.80
LBL-276-080495³	8-4-95	.69215	.4445	50.8	22.7	2.7	7.4	16.9	12.3	50.5	4.52	25.7	.01117	89.5	4.31	24.5	.01172	85.30
LBL-276-080595³	8-5-95	.69215	.4445	50.8	20.8	-5.2	7.2	18.4	7.8	49.8	4.41	25.1	.01129	88.6	4.28	24.3	.01163	85.95

Note 1 - 12 cavity, 1.5 inch pitch, no gather, kraft and biaxially oriented polypropylene baffle, ethylene vinyl alcohol barrier, krypton fill gas.
Note 2 - 12 cavity, 0.5 inch pitch, no gather, kraft baffle, ethylene vinyl alcohol barrier, xenon fill gas.
Note 3 - 12 cavity, 1.5 inch pitch, no gather, kraft and biaxially oriented polypropylene baffle, ethylene vinyl alcohol barrier krypton fill gas.
Note 4 - Experimental results based on air temperatures and measured film coefficients
Note 5 - Corrected experimental results take into account mask/panel interface effect