Heat Flux and Temperature Determination on the Control Rod Outer Surface
NURETH-14 - 2011 September 25-30

Presented at:
2011 September 25-30
Toronto, Canada
Session Title:
B3-2 Core Thermalhydraulics and Subchannel Analysis

Jan Taler (Cracow University of Technology)
Artur Cebula (Cracow University of Technology)
Jerzy Marcinkiewicz (Forsmarks Kraftgrupp AB)
Hernan Tinoco (Forsmarks Kraftgrupp AB)


The paper presents heat transfer calculation results concerning a control rod of Unit 3 of Forsmark Nuclear Power Plant (NPP). The part of the control rod, which is the object of interest, is surrounded by a mixing region of hot and cold flows and, as a consequence, is subjected to thermal fluctuations. The paper describes a numerical test which validates the method based on the solution of the inverse heat conduction problem (IHCP). The comparison of the results achieved by two methods, CFD and IHCP, including a description of the IHCP method used in the calculation process, shows a very good agreement between the methods.

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