Normal and Accidental Scenarios Analyses with MELCOR 1.8.2 and MELCOR 2.1 for the DEMO Helium-Cooled Pebble Bed Blanket Concept

Table 2

Stationary run results.

Parameter	Reference	1.8.2	2.1
Blanket total pressure (MPa)	—	8.18	8.17
SG total pressure (MPa)	—	7.88	7.89
Pressure drops (MPa)	0.37	0.37	0.37
Mass flow rate (kg/s)	875.5	872.7	872.3
He mass (kg)	6,800.0	6,795.4	6,795.4
Blanket CV temp. (K)	773.15	774.54	773.36
Blanket HS temp. (K)	—	823.7	822.59
SG CV temp. (K)	573.15	574.85	575.17
SG HS temp. (K)	—	571.55	571.64