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This paper aims to demonstrate experimentally the heat transfer performance of dense gas-solid suspension impinging jet for divertor cooling of the fusion power reactor. Prior to the experimental stud...y, a tentative goal of 20000W/m2K was set as the heat transfer coefficient based on the expected temperature level of both coolant and divertor plate materials. When the glassy-carbon particles were used, the maximum heat transfer coefficient could not reach the target value because the solid flow rate was restricted by the crucial erosion damage of test plate and a strong vibration observed in the test line. On the other hand, in the case that the fine graphite particles were used, the maximum heat transfer coefficient of 20000W/m2K was obtained at relatively dilute condition of solid loading ratio, which is considered to be due to the additive production of turbulence by particles’ wake.続きを見る
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