Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4921410 | Fusion Engineering and Design | 2016 | 4 Pages |
Abstract
The tungsten (W) brazed flat type mock-up which consists of W, OFHC-Cu (oxygen-free high conductive copper) and CuCrZr alloy has been designed for KSTAR divertor in preparation for KSTAR upgrade with 17Â MW heating power. For verification of the W brazed mock-up, the high heat flux test is performed at KoHLT-EB (Korea High Heat Load Test Facility-Electron Beam) in KAERI (Korea Atomic Energy Research Institute). Three mock-ups are tested for several thousand thermal cycles with absorbed heat flux up to 5Â MW/m2 for 20Â s duration. There is no evidence of the failure at the bonding joints of all mock-ups after HHF test. Finite element analysis (FEA) is performed to interpret the result of the test. As a result, it is considered that the local area in the water is in the subcooled boiling regime.
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Authors
J.H. Song, K.M. Kim, S.H. Hong, H.T. Kim, S.H. Park, H.K. Park, H.J. Ahn, S.K. Kim, D.W. Lee,