| 摘要 |
The facade has an integrated ventilation unit (30). This is controlled dependent upon the energy radiation acting on the facade, and/or dependent upon the temperature. The unit sucks air into the compartment (24) through the intakes (26), and/or blows air out through the ejection openings (28). The ventilation unit is formed by a drum ventilator, and is electrically operated. The unit extend mainly across the width of the compartment, and there may be more than one unit per compartment. The current is generated by a photovoltaic element. This may be located in the compartment, or may be part of the outside facade (10). |
