Energy efficient ventilation of office buildings . Part 1 (Energieeffiziente Luftung von Burogebauden Teil 1.

The article compares the energy consumption linked to different ventilation systems of an office room (22 m2, 3 m high, occupied by 2 persons from 8 a.m to 6 p.m, internal heat source 15 W/m2). Those systems are : air renewal through windows opening, classical control mechanical ventilation with heat recovery, high energy efficient control mechanical ventilation with heat recovery. The mechanical systems provide 40 m3/h/person (air change rate 1.2 vol/hr).
The results show quantities such as primar energy consumptions, with for example, the influence of windows opening on occupants' behaviour and the influence of the electric consumption of the mechanical systems fans.