ENERGY SAVING AND CLIMATE CONTROL IN GREENHOUSES WITH CONCERTINA SHAPED SCREENS, MADE OF METALLIZED COMPLEX FILM

This development requires a screen and a screen installation which provides high energy savings, little light loss and climate control possibilities.

The objective of this project is to prove that with a concertina shaped screen with a closed metallized structure, all these effects can be achieved.

Provisional conclusions:

• overall light transmission in the greenhouse reduced by concertina screen and screen installation from 68 to 65%.
• energy savings with a closed screen circa 60%
• by utilising small screen openings, the relative humidity can be controlled.
• although small screen openings are used to control the climate, there is still a saving of energy.
• side screens ensure uniform temperature.

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