Study on CO2 concentration in main control room of nuclear plant after an accident

Presents the design value of CO2 concentration in a main control room of the nuclear plant after an accident. Derives the control equation according to CO2 mass balance. Finds out various influencing factors in accordance with the calculation results. Calculates critical factors and designs the calculation modes one by one. Concludes the relations between the CO2 concentration and other parameters. Indicates the conception of the limit of CO2 concentration, providing a reference for engineering calculations.