Science and Technology of Nuclear Installations / 2011 / Article / Tab 2

Research Article

A Coupled Calculation Suite for Atucha II Operational Transients Analysis

Table 2

Information exchanged by the three codes. The actual values are stored in shared memory segments and are read by each code after the corresponding semaphore is set to green by the main code DyPRA.

Variable Written by Read by

Lower plenum pressure DYNETZ RELAP
Upper plenum pressure DYNETZ RELAP
Coolant internal energy at the core inlet for loop 1 DYNETZ RELAP
Coolant internal energy at the core inlet for loop 1 DYNETZ RELAP
Fraction of power directly dissipated in the moderator DYNETZ RELAP
Conduction heat flux between coolant and moderator DYNETZ RELAP
Control rod position DYNETZ PCE
Moderator temperature distribution DYNETZ PCE
Total power PCE RELAP & DYNETZ
Relative power distribution PCE RELAP & DYNETZ
Decay power PCE DYNETZ
Ex-core neutron detectors readings PCE DYNETZ
In-core neutron detectors readings PCE DYNETZ
Coolant density distribution RELAP PCE
Fuel temperature distribution RELAP PCE
Coolant temperature distribution RELAP PCE
Mass of heavy water inside The core RELAP DYNETZ
Coolant mass flow in each channel RELAP DYNETZ
Outlet coolant enthalpy each channel RELAP DYNETZ

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