High Efficiency 0.002 W/Mk Vacuum Insulated Panels (VIP) for Construction Refrigerator

There are three modes of heat transfer: conduction, convection, and radiation, and if we remove most of the air molecules from a space-as occurs when we draw a vacuum-we largely eliminate the first two of those heat transfer mechanisms. Conduction is the flow of heat from molecule to molecule. It's the reason a cast iron skillet handle heats up, but thermal conduction also occurs across a layer of air, as kinetic is transferred from one air molecule to the one next to it. If we remove most of th

The high barrier film around the vacuum panel should not be damaged. If the plastic film is punctured and air flows in, the thermal conductivity rises up to 0.020 W/mK. Therefore it is not possible to cut vacuum panels to the appropriate size on site. Equally it is not possible to puncture them with dowels or similar items. Beside these limitations, vacuum panels can be glued to other surfaces or integrated into different constructions with appropriate covers.

In general, thin vacuum panels can be bent into cylindrical forms within some limitations. The thinner the panel, the smaller the possible curvature radii. Regular vacuum panels cannot be formed into complex forms with two-dimensional curvatures like spherical parts or similarily complicated shapes. However, new technologies allow us to produce more complex shapes, even panels with holes. Please contact us for details if you have special requirements.

The microporous filling can sustain temperatures of up to 900 degrees Celsius without damage. The outer plastic barrier film, however, can tolerate temperatures up to 80 degrees Celsius, but at permanently applied temperatures above about 40 degrees Celsius to 50 degrees Celsius significantly more air gases and water vapor passes through than at room temperature. This limits the duration of the application.

Short term exposures of high humidity don't cause any problems to the used films of the vacuum panels. However they should not be exposed to high humidity for longer periods of time, especially in combination with high temperatures. Therefore, it is advisable to install humidity barriers in such a way that the vacuum insulation panels are kept dry.