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http://dx.doi.org/10.6110/KJACR.2015.27.3.158

A Study on Temperature Characteristics of KSTAR PFC and Vacuum Vessel at Baking Phase  

Yoo, Seong-Yeon (Chungnam National University)
Kim, Young-Jin (National Fusion Research Institute)
Jung, Nam-Yong (National Fusion Research Institute)
Kim, Kyung-Min (National Fusion Research Institute)
Lee, Je-Myo (National Fusion Research Institute)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.27, no.3, 2015 , pp. 158-168 More about this Journal
Abstract
To create an ultra-high vacuum state at the KSTAR, the temperature of plasma facing component and vacuum vessel should be maintained at $300^{\circ}C$ and $110^{\circ}C$ respectively at a baking phase. The purpose of this research is obtaining the target baking temperatures. Experiments were performed to investigate the temperature characteristics of PFC and VV at the baking phase. Thermal network analysis was used to find heat transfer rates among PFC, VV and other components, and this analysis was verified by using the experimental data. The required heating energy of the PFC and the heating and cooling energy of the VV for the target baking temperatures were found to be 346 kW, 28 kW, and 136 kW, respectively.
Keywords
KSTAR; Plasma facing component; Vacuum vessel; Baking; Radiative heat transfer;
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