| Title |
The Evaluation on the Control Characteristics of Air Volume according to the Stroke Ratio of Damper Blade in Demand Controlled Ventilation(DCV) System |
| Authors |
Yoon. Dong-Won ; Ahn. Byung-Wool |
| Keywords |
Control of the CO2 concentration ; Automatic Control for the Vetilation requirement ; Demanded Controlled Ventilation |
| Abstract |
Ventilation is important for the health and comfort of building occupants. It is necessary to dilute and remove pollutants emitted from indoor source such as those derived from metabolism and from the activities of occupants. Ventilation is accomplished by introducing outside air into the space. It is important to understand the performance of the ventilation system and building space itself. The ventilation requirement depends on the amounts of pollutants existing in indoor space. It is possible to calculate the ventilation requirements to prevent pollutants from exceeding the threshold concentration level. If the dominant pollutant could be identified and measured, the ventilation rate can be automatically adjusted to respond by means of DCV(demand controlled ventilation). DCV system provides the ventilation rates automatically by means of control with response to variations of the pollutant levels. Carbon dioxide sensor is especially successful to appreciate for tracking CO2 concentration produced by occupants in spaces. In this study, the experimental ventilation system for the DCV control establish to figure out the performance of the ventilation strategies using the CO2 sensor. After measurement of various experimental cases, logical concepts for the DCV system is suggested to provide the appropriate ventilation and to ensure the good indoor air quality. |