The steam generator bridges the primary and secondary circuits. It is comprised of 3 parts: the primary heat transfer model of the U-tube, the steam pressure model of the secondary system, the average temperature model of the primary coolant, and the steam pressure model. $$\frac{d\Delta T_P}{dt}=\frac{1}{\tau_P}(k_{pm}\Delta T_m+k_{pc}\Delta T_{HL}-\Delta T_P)$$
$$\frac{d\Delta T_m}{dt}=\frac{1}{\tau_m}(k_{mp}\Delta T_P+k_{ms}\Delta P_{S}-\Delta T_m)$$
$$\frac{d\Delta P_P}{dt}=\frac{1}{\tau_{PS}}(k_{psm}\Delta T_m+k_{psy}\Delta y-\Delta P_S)$$
Where \(\Delta T_m\) is the tube metal lump temperature deviation, \(\Delta P_S\) is the steam pressure deviation, \(\tau_P\), \(\tau_m\), and \(\tau_{PS}\) are the coolant, U-type metal tube, and steam pressure time constants. \(\Delta y\) is the fractional change in valve coefficient. \(k_{pm},k_{mp},k_{ms},k_{psm}\) = \(k_{psy}\) are metal tube temperature, coolant temperature, hot leg temperature, pressure temperature, metal tube pressure, and valve pressure coefficient, respectively.
- chenComprehensiveRealTimeHardwareIntheLoop2020
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[[Lumped Parameter Model]]
Nuclear Submarine Model
[[Siemens SG 61 WD3 Steam Generator]]
[[Steam Generator Model]]