Prediction of Flow Regimes and Thermal Hydraulic Parameters in Two-Phase Natural Circulation by RELAP5 and TRACE Codes

Table 4

Calibrated values of uncertain input parameters, tests I-2 and I-1.

Input parameter	TRACE; I-2/I-1	RELAP5; I-2/I-1	Experiment; I-2/I-1
Channel inlet temperature (°C)	100.6/93.6	100.6/93.6	99.8/92.8
Heated channel heat loss (W)	350	350	N/A
Riser heat loss (W)	200	200	N/A
Upper riser tube heat loss (W)	200	200	N/A
Inlet loss coefficient	28	28	N/A