Computer simulation of the impact of CO2-based ventilation control

This paper presents; the evaluation, of the impact of a CO2-based DCV system, which was performed bycomputer simulation. A subroutine was developed, and then integrated, using the Functional Values feature, within a model of a large existing office building, which was developed using the MICRO-DOE2 software, version E. Since the CO2-based DCV system has to be integrated with a conventional control system, which maintains the desired mixing air temperature, the impact on the indoor air quality and the energy performance of the building depends on the type of conventional control. The reduction of annual energy cost is evaluated to be between 3 and 7.6%, and the annual energy consumption between 1.1 and 4.9%.