Minghao Liu

TL;DR: In this article, the preliminary design and thermal-hydraulic analysis of a heat pipe cooled passive heat removal system for the transportable fluoride-salt-cooled high-temperature reactor of 20MWth was discussed.

TL;DR: In this article, a heat pipe-cooled passive residual heat removal system (PRHRS) of a molten salt reactor (MSR) was proposed by employing high-temperature heat pipe technology.

TL;DR: In this paper , the effect of carbide morphology and distribution on high-temperature tensile properties of LPBF Hastelloy X (HX) alloys by using different heat treatment methods (the same dwell temperature, different cooling methods).

Abstract: A new conceptual design of a passive residual heat removal system (PRHRS) has been proposed for molten salt reactor. High‐temperature heat pipes are used in this new design to improve the system inherent safety and make the PRHRS more compact. An experimental system using fluoride salt FLiNaK has been constructed to validate and support the future design of PRHRS of molten salt reactors. In this research, tests on the natural convection heat transfer of FLiNaK in the drain tank with an inclined heat pipe inserted at different heights were performed. The temperature distribution of fluoride salt in the tank was analyzed. The height of heat pipe and the bulk temperature of FLiNaK have little influence on the normalized salt temperature distribution. However, with the height of heat pipe increasing, the temperature difference of molten salt decreases and heat transfer coefficient of natural convection increases. In addition, the empirical correlations of natural convection heat transfer between liquid FLiNaK and inclined heat pipe are obtained within the range of Rayleigh numbers from 3.97 × 106 to 1.16 × 107. The comparisons show that a good agreement with less than 5% deviation is obtained between the proposed correlations and the test data.