SBWR Model for Steady-State and Transient Analysis

Table 2

SBWR submodels and approximations.

Mode^*l	Approximation
Vessel dome and downcomer	Lumped parameters
Natural circulation loop	Lumped parameters
Neutron kinetics	Lumped parameters
Fuel rod	Distributed parameters
Lower plenum, upper plenum, and core	Distributed parameters

^*The whole system includes pressure control and level control.