• Title/Summary/Keyword: 핵연료채널

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Proposed Concept of a Tube-Type Passive Water-Cooled Reactor Without Emergency Core Cooling System (비상노심냉각계통을 제거한 압력관형 피동 수냉각로)

  • Chang, Soon-Heung;Baek, Won-Pil;Lee, Goung-Jin;Lee, Jae-Young
    • Nuclear Engineering and Technology
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    • v.26 no.2
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    • pp.161-167
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    • 1994

  • This paper presents a concept of a pressure tube-type water-cooled reactor without the emergency core cooling system. It adopts an innovative fuel channel design using metallic fuel matrix to improve heat transfer from fuel to moderator at loss of coolant cooling. The heat produced in the fuel is cooled by the coolant system during normal operation, but by the passive moderator system at loss of coolant cooling including the loss-of-coolant accident(LOCA). Simple analysis shows that the fuel channel temperature can be maintained within the permissible range for both normal operation and a complete LOCA.

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CANDU-6 Heat Transport System Stability Analysis With Canflex Fuel Bundle (CANFLEX 핵연료를 사용한 CANDU-6의 열수송계통 안정성 분석)

  • Shin, Jung-Cheol;Park, Ju-Hwan;Kim, Tae-Han;Suk, Ho-Chun
    • Nuclear Engineering and Technology
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    • v.27 no.3
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    • pp.358-373
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    • 1995

  • The Heat Transport system loop stability of CANDU-6 reactor using the CANFLEX fuel bundle was studied. The Thermal-hydraulic behavior of CANFLEX fuel bundle is similar to the conventional 37-element fuel bundle since the reactor power and the frictional pressure drop through the fuel channel is almost the same each other, Mounter the CANFLEX fuel bundle gives higher critical channel power and more homogeneous enthalpy distributions in the subchannels than 37-element fuel bundle. The SOPHT modelling or the CANFLEX fuel bundle and the Reactor outlet Header(ROH) interconnection line was made and the stability analysis response of Wolsong-1 reactor with CANFLEX fuel bundle was obtained. Without the ROH interconnection line the Heat Transport system loop using 43-element fuel bundle is unstable like the current 37-element fuel bundle. With the ROH interconnection line, however, the Heat Transport system is stable within $\pm$1％ of nominal flow. In the Heat Transport system loop stability point of view for Wolsong-1 plant therefore, the CANFLEX fuel loading is considered to be acceptable.

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