Evaluation of critical heat flux of ATF candidate coating materials in pool boiling

被引：27

作者：

Jo, HangJin ^{[1
,2
]}

Yeom, Hwasung ^{[3
]}

Gutierrez, Emilio ^{[3
]}

Sridharan, Kumar ^{[3
]}

Corradini, Michael ^{[3
]}

机构：

[1] POSTECH, Dept Mech Engn, Pohang, South Korea

[2] POSTECH, Div Adv Nucl Engn, Pohang 790784, South Korea

[3] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA

来源：

NUCLEAR ENGINEERING AND DESIGN | 2019年 / 354卷

关键词：

Critical heat flux; Accident tolerant fuel cladding; Non-hydrodynamic effect; Thermal activity; Thermal spreading ability; SURFACES; ENHANCEMENT; PERFORMANCE;

D O I：

10.1016/j.nucengdes.2019.110166

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The critical heat flux (CHF) of potential accident tolerant fuel (ATF) cladding materials and concepts, Cr and FeCrAl coatings on zirconium-alloy substrates, was investigated experimentally. A cold spray process, which involves the propulsion of high velocity powder particles on to the substrate surface to form a coating upon impact, was used to create the coatings. Surface parameters such as contact angle, surface roughness, and morphology that are associated with CHF in pool boiling were characterized. Non-hydrodynamic effects of newly developed ATF candidate coating materials on CHF were also evaluated. The effects of thermal properties and coating thickness and expected challenges for evaluation of CHF for new ATF cladding materials development are discussed.

引用

页数：6

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