The thermal-hydraulic condition in the region of secondary side of APR1400 steam generator is obtained using the ATHOS3 code. The effective mass for modal analysis is calculated using the void fraction, enthalpy, and operating pressure information from ATHOS3 code result. With the effective mass ...
The pipe runs from the containment building to the turbine building, which is the steam supply system from the steam generator to the high-pressure turbines. The main steam pipe originates from the steam Support design schemes and input seismic waves To fully exploit the flexibility and ...
The ''RCS Dynamic'' represents the RCS parameters, such as temperature, pressure, and void fraction, as shown in Fig. 13. 6. HUPESS The human performance evaluation support system (HUPESS) has been developed to effectively measure the operator's response when the personnel perform selected ...
Lessened heat transfer to the secondary side caused by earlier actuation of the safety injection pumps had more influence on the secondary pressure of the affected steam generator than the break flow. The break flow was discharged as single-phase water in both tests....
Finite Element Method simulations were employed to compare the deformation behavior of flat and spherical tube sheets under high-temperature and high-pressure conditions. The analysis identified optimal spherical tube sheet thicknesses that maintained structural integrity while achieving significant reductions ...
The differences in other parameters can be explained by the differences in the power response and possible differences in initial conditions (i.e., in terms of initial steam generator pressure).Peter YarskyUnited States Nuclear Regulatory CommissionAndrew Bielen...