Mechanical systems/ HVAC & sanitary hot water/ Radiant walls, ceilings & glass
DuPontTM Energain® is a rigid panel, only 5 mm thick, composed of a compound of paraffin and a copolymer, together with two exterior sheets of aluminum joined around the edges of the panel with aluminum adhesive tape. The panel provides thermal mass for buildings with low thermal inertia. It absorbs and liberates heat through the phase changes of the compound, which are produced by solar gain and exterior temperature changes. When the panel temperature reaches 22º C, a phase change is generated in the compound –the paraffin melts– absorbing heat and reducing temperature increases at least 7º C. When the temperature falls below 18º C, the paraffin solidifies, releasing the heat it has absorbed and increasing the interior temperature. The panels are installed on the inside face of façades, and in ceilings in association with mechanical ventilation. They come in 1000 x 1200 mm sheets that can be cut to any size and fastened with nails, staples or screws.
The paraffin and copolymer compound solidifies at 18º C and melts at 22º C, respectively emitting and absorbing heat in each phase change.
DuPontTM Energain® is a system of thermal storage with minimal thickness.
Installation of the insulating panel in a ceiling.
Insulation based on phase changes is particularly indicated for buildings with light façades and little thermal inertia.
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