| 원자력 극한환경용 세라믹 열교환기 소재로서 반응소결 SiC 세라믹스 제작성 |
| 정충환, 박지연 |
| 한국원자력연구원 원자력재료연구부 |
| Fabricability of Reaction-sintered SiC for Ceramic Heat Exchanger Operated in a Severe Environment |
| Choong-Hwan Jung, Ji-Yeon Park |
| Nuclear Materials Research Division, Korea Atomic Energy Research Institute |
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| ABSTRACT |
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Silicon carbide (SiC) is a candidate material for heat exchangers for VHTR (Very High Temperature Gas Cooled Reactor) due to its refractory nature and high thermal conductivity. This research has focused on demonstration of physical properties and mock-up fabrication for the future heat exchange applications. It was found that the SiC-based components can be applied for process heat exchanger (PHE) and intermediate heat exchanger (IHX), which are operated at $400{sim}1000^{circ}C$, based on our examination for the following aspects: optimum fabrication technologies (design, machining and bonding) for compact design, thermal conductivity, corrosion resistance in sulfuric acid environment at high temperature, and simulation results on heat transferring and thermal stress distribution of heat exchanger mock-up. |
| Key words:
Reaction-sintered SiC, Corrosion, Ceramic heat exchanger, Sulfur-Iodine process, High temperature gas cooled reactor, Bonding |
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