Development of Passive In-Core Cooling System for Nuclear Safety Using Hybrid Heat Pipe

Kim, Kyung Mo; Jeong, Yeong Shin; Kim, In Guk; Bang, In Cheol

doi:10.13182/nt16-32

Cited by 12 publications

(7 citation statements)

References 1 publication

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“…The results shown that the hybrid heat pipe removed 18.20 kW per rod with total thermal resistance of 0.015 K/W. Kim et al [9] proposed some designs for a core cooling system based on hybrid heat pipes. Xie et al [10] numerically simulated and experimentally investigated HPHE applied in residual heat removal system.…”

Section: Fig 1 the Sectional View Of Heat Pipementioning

confidence: 99%

Numerical simulation of liquid-liquid heat pipe heat exchanger applied as sampling cooler in nuclear power

Liu

Tao

2022

J. Phys.: Conf. Ser.

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Monitoring and control of the temperature and pressure of water sample are critical issues in the nuclear power engineering for the efficient and safe operation. In this paper, through the thermal and fluid dynamical simulations, we demonstrated the improvement in heat transfer performance of the heat pipes used in the sampling cooler by changing the heat pipe diameters and the fin types. Heat pipes with helical fins show a 30.9% enhancement in heat transfer j factor compared to the smooth heat pipes. Additionally, the numerical results also show that the sampling cooler has an optimal helical fin pitch, which is 140mm.

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Section: Fig 1 the Sectional View Of Heat Pipementioning

confidence: 99%

Numerical simulation of liquid-liquid heat pipe heat exchanger applied as sampling cooler in nuclear power

Liu

Tao

2022

J. Phys.: Conf. Ser.

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“…In terms of natural factors, all the nuclear installations are vulnerable to the abovementioned geographical, geological and meteorological criteria, SMRs are no exception (Reyes, 2012). However, with its advanced structural designs and enhanced safety features (Harman et al, 2011;Reyes, 2012;Kim et al, 2016;Ford et al, 2017;Udiyani et al, 2018), SMRs are likely to be safer and more reliable compared with traditional NPPs. A quantity of researches have been conducted to study its safety features in response to potential disasters, the aim of which is to ensure a high level of safety and security for SMR designs (Reyes, 2012;Butt et al, 2016;Liao et al, 2016).…”

Section: Suggestions On Smr Site Selectionmentioning

confidence: 99%

“…A quantity of researches have been conducted to study its safety features in response to potential disasters, the aim of which is to ensure a high level of safety and security for SMR designs (Reyes, 2012;Butt et al, 2016;Liao et al, 2016). For example, the reduced pipelines in SMR systems can prevent several design-basis accidents such as loss-of-coolant-accident (Kim et al, 2016). The NuScale design used advanced passive safety systems to provide long-term cooling for the case of a complete station blackout that caused by extreme events (Reyes, 2012).…”

Section: Suggestions On Smr Site Selectionmentioning

confidence: 99%

“…Last but not least, the safety factor is also one of the most important indicators that must be considered when choosing suitable sites for SMRs. Due to the compact size, small capacity and passive safety design of commercial SMRs (Kim et al, 2016;Liao et al, 2016), the potential radiation hazard of SMRs is relatively lower than that of NPPs. The negative effects of potential hazardous facilities on SMRs are also low.…”

Section: Suggestions On Smr Site Selectionmentioning

confidence: 99%

See 1 more Smart Citation

Perspective on Site Selection of Small Modular Reactors

Zhang¹,

Guo²,

Liu³

et al. 2020

J ENVIRON INFORM LET

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As an emerging means of energy supply, small modular reactors (SMRs) are considered as a promising option for relieving environmental pressure caused by increasing fossil fuel consumption. Since SMRs are at an early stage of development, in-depth analysis on the necessity and feasibility of their deployment is essential. The site selection of SMRs, which is a multifaceted process and should be guided by a clearly established set of criteria, is a crucial step. To propose comprehensive recommendations for SMR site selection, a review is provided in this study. The review involves development process, technical characteristics and potential applications of SMRs, research status of SMR site selection, and criteria for site selection of nuclear power plants (NPPs). Different considerations of siting criteria between SMRs and NPPs are analyzed. Based on the review and analyses, perspectives and targeted suggestions on SMR site selection are provided.

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“…The most studied option to incorporate HPs into the geometry of the fuel elements is to replace conventional control rods with so-called hybrid HPs (Kim et al, 2016). It consists of reducing the borated steel volume of the control bar, which function is to absorb the neutrons, to incorporate a HP acting as a heat sink.…”

Section: Introductionmentioning

confidence: 99%