Cobra-tf Analysis Of Rbht Steam Cooling Experiments

摘要

Through the joint efforts of the Pennsylvania State University and the United States Nuclear Regulatory Commission, an experimental Rod Bundle Heat Transfer (RBHT) facility was designed and built [1]. A series of steady-state Steam Cooling (SC) experiments were conducted at the facility for the purpose of collecting experimental data such that local convective Heat Transfer Coefficients (HTC) could be calculated. Experimental measurements taken during these tests reflect combined convective and thermal radiative heat transfer. Since the rod temperatures achieved during these experiments are relatively high, one would expect the rod surface-to-surface radiative heat transfer to account for a substantial portion of the total rod heat transfer. Thus, to accurately model the SC experiments thermal radiation must be considered and accounted for in the calculations.