Insulating Glass Units

Insulating Glass Units

The properties of NSG TEC™ in Refrigerator Door Applications*:

 
Glazing (Room/Cool Side) Airspaces (Number) Ug-Value Room-Side Glass Temp. (C) Condensation RH** (%) RH Improvement (%) Heat Flow Through Glass (W/m²) Heat Flow Reduction (%) Power Density (W/m²)
Clear/Clear 1 2.4 20 64 Base Case 54 Base Case 0
Triple Clear***
2 2.0 21 69 8 46 17 0
NSG TEC™ 15/Clear
1 1.7 22 73 14 38 30 0

* Room-side temperature = 27˚C, refrigeration temperature = 4˚C.
** Condensation along the room-side glass surface away from the frame when the relative humidity (RH) within the room is greater than the value noted.
*** No power.

The properties of NSG TEC™ in Freezer Door Applications*:

Glazing (Room/Cool Side) Airspaces (Number) Ug-Value Room-Side Glass Temp. (C) Condensation RH** (%) RH Improvement (%) Heat Flow Through Glass (W/m²) Heat Flow Reduction (%) Power Density (W/m²)
Triple Clear*** 2 1.9 15 48 Base Case 87 Base Case 0
NSG TEC™ 70/Clear/Clear
2 1.7 24 81 70 82 6 82
NSG TEC™ 70/NSG TEC™ 15
1 1.6 25 87 82 75 14 82
NSG TEC™ 70/NSG TEC™ 15/Clear
2 1.5 25 90 88 73 17 82

* Room-side temperature = 27˚C, freezer temperature = −20˚C.
** Condensation along the room-side glass surface away from the frame when the relative humidity (RH) within the room is greater than the value noted.
*** No power.

Notes: All glass 3.2 mm; Airspace 12 mm for doubles, 6 mm for triples; Airspace filled with air; All simulations utilizing LBL Windows 5.2; Demist heater power of 100 Watts (82 W/m²); Input voltage = 120 volts; Units 800 mm × 1,700 mm, bus bars along 800 mm dimensions.

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