Abstract
The thesis investigates thermal-hydraulic modeling of PCTRAN-PWR and establishes offsite Dose Calculation Capabilities in PCTRAN-PWR.PCTRAN-PWR is referred to a PCTRAN version for Westinghouse nuclear power plant.The thesis has generalized major thermal-hydraulic theory about core, pressurizer and steam generator and major portion of calculation function form PCTRAN-PWRThe thesis has also established XOQ calculation modeling in PCTRAN-PWR. XOQ is the rate of concentration of the effluent over its flow rate. Using the XOQ calculation modeling of this thesis and dose calculation modeling of PCTRAN-PWR, we can calculate and display the whole body dose rate and thyroid dose rate and their integrated dose in the range of offsite radius 5 km according to weather condition and wind velocity and direction at real time. It will be useful for Emergency plan maneuvers.