Compagnon R, Kohler A, et al
Bibliographic info:
9th AIVC Conference "Effective ventilation" Gent, Belgium, 12-15 September 1988

A constant concentration tracer gas (CCTG) measuring system needs a control algorithm to calculate, at each sampling time, the required tracer gas injection rate to keep the gas concentration at a target level. A new control algorithm is presented here in full detail. Practical considerations concerning modifications to take into account the physical limitations of the CCTG system and the computing of the optimal control parameters are also presented.