Results of Monitoring a Naturally Ventilated and Passively Cooled Office Building in Frankfurt A.M., Germany

In this article the concept of a new energy-efficient office building and results of a 3-year monitoringare described. The monitoring was performed within the German funding programme ENOB.In this building most of the offices are naturally ventilated and passively cooled. Another focus of theenergy concept is on regenerative heating.Monitoring results show that the integrated planning enabled a very low consumption of energy forheating, ventilation, cooling and lighting. The monitoring could help to reveal operating problems andto lower the usage of energy.Though passively cooled, the rooms provided good thermal conditions. The given limits of roomtemperatures were exceeded only in an acceptable manner. Good air quality could be achieved justby natural ventilation.