Thermal Analysis of ITER VVTS Flange Area


Completed orders:

ITER Team (Garching, Germany) - International Thermonuclear Experimental Reactor


The objectives of the thermal analysis presented in this section is to evaluate an impact of the actively cooled pipe position on to the VVTS insulation performance.

Based on the obtained results of the comparative analysis the following conclusions could be declared:

- cooling of the panel by the closest to a flange pipe causes in 24 % and even in 59 % increasing of maximal and average heat influx to the TFC respectively;

- at the panel cooling by the closest to the flange pipe the second (redundant) pipe will serve as a thermal bridge between thick and thin panels and by doing so leads to increase of the temperature level of the thin fins. The later results in the heat influx to the TFC increasing from 0.17 W/m2 to 0.27 W/m2;

- at the panel cooling by the distant from the flange pipe, it serves as a thermal anchor which reduces the thin fin temperature, but in the same time the surface temperature of the flange faced to the TFC increases from 88.5 °C to 94.5 °C.



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