Gravity-driven injection experiments and direct-contact condensation regime map for passive high-pressure injection system

Lee, Sang Il; No, Hee Cheon

doi:10.1016/s0029-5493(98)00174-5

Cited by 28 publications

(3 citation statements)

References 7 publications

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“…이처럼 유동평균속도가 작은 수직성층유동에서 과냉각 액 먼저, CSLI-31 (P SG = 1.43 bar, T CMT = 31°C)에 대해 RELAP5 /MOD3.3과 MARS의 격자민감도를 분석하고 실험 [9] 과 비교하여 예측 능력을 평가하였다. 또한, 선행연구 [5,9]에 기초하여 노심보충수탱크 내부의 직접접촉응축 현상에 영향 을 미치는 요인으로 알려진 노심보충수탱크의 온도(T CMT ), 증 기발생기 압력(P SG ), 자연대류유동(Natural circulation flow)의 영향을 분석하였다. Fig.…”

Section: Fig 3 Schematic Of Vertical Flow Regime Map[12]unclassified

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Assessment of Mars for Direct Contact Condensation in the Core Make-Up Tank

Park¹,

Park²,

Lee³

et al. 2014

Journal of computational fluids engineering

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This study aimed at assessing the analysis capability of thermal-hydraulic computer code, MARS for the behaviors of the core make-up tank (CMT). The sensitivity study on the nodalization to simulate the CMT was conducted, and the MARS calculations were compared with KAIST experimental data and RELAP5/MOD3.3 calculations. The 12-node model was fixed through a nodalization study to investigate the effect of the number of nodes in the CMT (2-, 4-, 8-, 12-, 16-node). The sensitivity studies on various parameters, such as water subcooling of the CMT, steam pressure, and natural circulation flow were done. MARS calculations were reasonable in the injection time and the effects of several parameters on the CMT behaviors even though the mesh-dependency should be properly treated for reactor applications.

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Section: Fig 3 Schematic Of Vertical Flow Regime Map[12]unclassified

“…선행연구 [5,9]에 기초하여 노심보충수탱크의 직접접촉응축 현상에 영향을 미치는 요인들인 노심보충수탱크의 온도 (T CMT ), 증기발생기의 압력(P SG ), 자연대류(Natural Circulation Flow)의 영향을 해석하였다.…”

Section: 온도 압력 자연대류 영향 분석unclassified

Assessment of Mars for Direct Contact Condensation in the Core Make-Up Tank

Park¹,

Park²,

Lee³

et al. 2014

Journal of computational fluids engineering

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“…The condensation regime map by Chun et al (1996) from visual observations and dynamic pressure oscillations included six condensation modes of chugging, transient region, condensation oscillation, bubble condensation oscillation, stable condensation, and interfacial oscillation condensation. Lee and No (1998) concluded that the buoyancy dominated the transition between the regimes and introduced Froude number and Jacob number to describe the condensation regime map consequently. Ju et al (2000) obtained a condensation regime map associated with the downward injection of vapor, and found that the boundary of chugging and subsonic jetting shifted to the larger steam mass flux with the increase in the pipe diameter.…”

Section: Introductionmentioning

confidence: 99%