The invention provides a design method and
system for heat dissipation and ventilation parameters of a reactor hall, and the method comprises the steps: building a reactor hall fluid
domain model, carrying out the grid
discretization, obtaining different hall air supply amounts and motor air inlet temperatures through
simulation, and carrying out the fitting to obtain a first formula; motor air supply is considered, different motor inlet air and exhaust air temperatures are obtained through
simulation, and a second formula is obtained through fitting; calculating the heat dissipation value of the motor to obtain a third formula of the heat dissipation value of the motor and the exhaust
air temperature of the motor, calculating the exhaust
air temperature corresponding to the design value of the heat dissipation value of the motor according to the formula, calculating the air
inlet temperature corresponding to the exhaust
air temperature according to the second formula, calculating the ventilation quantity of the motor, and judging whether the ventilation quantity is greater than the design value of the ventilation quantity of the motor; if yes, the hall air output input value is increased, the step S4 is executed again, and if not, hall ventilation parameters are output. According to the hall air supply volume obtained through the method, it can be guaranteed that the air temperature in the hall meets the design requirement, and it can be guaranteed that air supply and heat dissipation of the
sodium pump motor meet the design requirement.