Performance of demand-controlled ventilation: case study, energy savings and practical rules

Résumé et principaux résultats

Communication à la 21ème Conférence de l'AIVC, 26-29 September 2000, La Haye
Abstract : In order to assess the real performances of different demand controlled ventilation (DCV) systems, two of them were installed in meeting rooms of an office building. The first system is controlled by movement detection on terminal units and has been installed in a small meeting room which is regularly used. The second system is controlled by CO2 detection and frequency variation on fan. It has been installed in a large meeting room (30 persons seated, up to 50 persons standing).
The systems have proved to be energy saving with correct CO2 levels. Meeting rooms have low occupation rate due to the fact there are generally less people in meetings than the maximum allowed. Simulations have also been run considering full office buildings to estimate the variation of savings for different occupation rates and the influence of DCV in meeting room and offices on the total building ventilation losses. Practical rules for owners on how to realise a correct DCV systems were drawn in order to realise a guide

Commissions

Ventilation des bâtiments résidentiels et tertiaires

Thème

Ventilation et qualité de l'air

Mots-clés

Modulation de débit, Ventilation

Auteurs

BERNARD Anne-Marie, BLAZY Michael