lightweight construction > PCM products

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PCM products

There are now a number of ranges of PCMs as well as construction products incorporating PCMs ready for use in buildings available in the Netherlands. Some suitable products and semi-manufactured products for the building industry are:

Micronal is a semi-manufactured product from BASF, which consists of paraffin beads encapsulated in a polymer. The microcapsules are about 5 microns in diameter and can be incorporated in plaster, plasterboard and concrete. Micronal has a heat of fusion of 100 kJ/kg. The melting temperature is 23°C.

Maxit Clima is also a BASF product and an example of a construction product incorporating a PCM. It is a spray plaster in which Micronal is incorporated. These paraffin beads increase the thermal mass of the plaster. A wall with 3 cm Maxit Clima possesses the same thermal mass as an 8 cm thick concrete wall or a 13 cm plasterboard wall without PCM.

ThermalCore is a plasterboard containing Micronal. National Gypsum makes the board mainly for use in walls in housing. The PCM in the board flattens out the temperature peaks during the day/night cycle, thus maintaining the living room in the comfort zone.

The influence of PCM in a ThermalCore plasterboard wall on the temperature gradient in a living room

Like Micronal, Thermusol is a semi-manufactured product. The PCM in the beads is not paraffin wax, but in this case it is a salt hydrate. The manufacturer/supplier, Salca, Ootmarsum in the Netherlands, offers three types of Thermusol as part of the standard product range: HD28, HD32 and HD60 with melting temperatures of 28, 32 and 60°C. The heat of fusion is resp.110, 150 and 160 kJ/kg. On request Thermusol can be produced with a melting temperature in the range 5-90°C.

Salca itself has used Thermusol in two complete products for the construction industry:

K-Block: a mat of two layers of fibrous material for absorbing (excess) heat. This can be laid loose on a system ceiling or against the inside of a roof.

Thermupod: pads for increasing the heat storage capacity of a buffer vessel for example.

Autarkis climate ceilings consist of polypropylene panels encapsulating PCMs. The melting temperature of the PCM is 21°C. The panels are mounted as 'islands' on a fixed ceiling. The PCM islands then regulate the cooling, heating and ventilation of the room.
Climate Floors from Autarkis, based in Almere in the Netherlands, are also PCM panels. 50% of the floor surface can be fitted with these panels, saving 50% on the heat absorbing capacity of the floor structure.

Energain is a wall panel from Dupont. It is finished with an aluminium laminate. The core consists of copolymers with a paraffin PCM. The melting temperature is 22°C and the solidification temperature 18°C. The specific heat of melting is 515 kJ/m2.The panel is relatively thin (5.26 mm) combined with a low weight (4.5 kg/m2).

Delta Cool 24 has been developed by Cosella-Dörken to provide increased thermal comfort in office spaces, especially for (extra) cooling at high internal heat loads, as often occur in offices. The elements - 610 x 610 x 71 mm - are made of polymers and PCMs. The melting temperature is 22-28°C and the solidification temperature is 22°C. The specific heat of melting is 158 kJ/kg. That equates to a cooling capacity of up to 44 Wh/kg.

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