Annabattula, R.

Bitz, O.

Haefner, U.

Hernandez, F.

Ilic, M.

Kolb, M.

Schmidt, R.

von der Weth, A.

English

Weth, A. von der

KITopen

Construction of PREMUX and preliminary experimental results, as preparation for the HCPB Breeder Unit mock-up testing *Corresponding author. Institute for Neutron Physics und Reactor Technology, Karlsruhe Institute of Technology, Germany. E-mail: francisco.hernandez@kit.edu THE HCPB-TBM BREEDER UNIT (BU) IN ITER  THE PREMUX DESIGN PREMUX experiments aims at testing this key concept step, reproducing a slice of the BU MU. Comprehensive studies have been done during the design of PREMUX to keep relevant conditions to a BU MU. HCPB-TBM Breeder Unit cell Mid-term goal: out-of-pile qualification of the thermo-mechanical performance of a HCPB-TBM Breeder Unit mock-up for ITER PREMUX is integrated in L-STAR/LL Large Loop (air loop, max. 0.3 MPa, max. 660g/s 25 °C to 390 °C). PREMUX will consist in 3 series of experiments:  (1) steady state power runs, increasing the power deployed by the heaters and measuring the Li4SiO4 temp. (2) runs reproducing ITER power pulses (3) runs for determination of the pebble bed thermal conductivity by pulsed hot wire method  CONSTRUCTION OF PREMUX AND TEST CAMPAIGN PLANNING Cooling airflow Heater system Volume for Li4SiO4 PREMUX CONTROL TOOL AND TEMPERATURE RECONSTRUCTION A PREMUX Control Tool software has been developed in Labview to monitor PREMUX systems. Three panels allows the real time monitoring of: (1) Li4SiO4 temperature monitoring and heater control, (2) PREMUX ancillary systems monitoring, and (3) L-STAR/LL loop systems control and monitoring. PREMUX test section Air compressors Mass flow meters Purge gas lines Hoses Buffer tanks Water cooled heat exchangers L-STAR/LL facility  PREMUX He gas bottle F. Hernández1,*, M. Kolb2, R. Annabattula3, O. Bitz1 , U. Haefner1, M. Ilic1, R. Schmidt1, A v. d. Weth1  1Karlsruhe Institute of Technology (KIT), Institute for Neutron Physics and Reactor Technology, Germany 2Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WPT), Germany 3 Indian Institute of Technology Madras, Department of Mechanical Engineering, India BU MOCK-UP (BU MU) CONCEPTUAL STUDIES FOR AN OUT-OF-PILE TESTING  0123456789100 0,05 0,1 0,15 0,2 0,25 0,3 0,35 0,4 0,45Volumetric heat [MW/m³] Radial distance from the first wall [m] HGen BeHGen CeHGen StExpon. (HGen Be)Expon. (HGen Ce)Expon. (HGen St)The discretization of the neutronic volumetric heat in cells of homogeneous heat is the basis for the out-of-pile BU MU concept. The idea is to insert a blocks of wire heaters in each cell that will reproduces this neutronic heat. BU temperature distribution One special feature is the implementation of a real time temperature reconstruction of the pebble bed test section with  biharmonic spline interpolation. Preliminary tests simulating the thermocouple signals in the Li4SiO4 shows the adequacy of the method. 1 2 3 ANSYS thermal simulation PREMUX temperature reconstruction 

Construction of PREMUX and preliminary experimental results, as preparation for the HCPB breeder unit mock-up testing

https://publikationen.bibliothek.kit.edu/220093735/3816418

Construction of PREMUX and preliminary experimental results, as preparation for the HCPB breeder unit mock-up testing

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