Experimental investigation of two-phase thermosyphon loop for passive containment cooling

Yin, Xuan; Hu, Jian; Chi, Xiangyu; Nan, Zezhao; Wang, Naihua

doi:10.1016/j.applthermaleng.2020.116403

Cited by 14 publications

(2 citation statements)

References 31 publications

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“…In view of the problems of small temperature differences and large heat transfer, loop heat pipe technology has attracted wide attention. Heat pipes are widely used in the PCSs of large equipment [25][26][27].…”

Section: Pcs Of Sfpmentioning

confidence: 99%

Research Progress on Thermal Hydraulic Characteristics of Spent Fuel Pools: A Review

Wang

Tang

et al. 2023

Energies

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Nuclear power plants (NPPs) produce large amounts of spent fuel while generating electricity. After the spent fuel is taken out of the reactor core, it still has a high decay heat and needs to be cooled for years or even decades before it can be reprocessed or buried deeply. Due to the long storage period of spent fuel, storage safety evaluation is a concern. In this regard, cooling systems are critical for the safe storage of spent fuel. Here, the research progress of cooling methods for spent fuel pools (SFPs) is reviewed, and the structural characteristics, application limitations and heat transfer performance of active and passive cooling technologies under accident conditions are discussed in detail. Moreover, future developments of SFPs are discussed, and the results of this review confirm that there is a great deal of research scope to improve the cooling performance and safety of spent fuel. This paper aims to provide a reference guide for engineers and will be highly beneficial to researchers engaged in spent fuel storage.

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Section: Pcs Of Sfpmentioning

confidence: 99%

Research Progress on Thermal Hydraulic Characteristics of Spent Fuel Pools: A Review

Wang

Tang

et al. 2023

Energies

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“…The results showed that the optimal distance of the test sample is 200-400 mm and that the heat transfer was enhanced by 7%-33% compared with the conventional condenser. To simulate operating conditions at the high filling ratio in a passive containment cooling system, Yin [7] investigated the operating characteristics of a TPLT in a pressure vessel (0.32-0.46 MPa). The results showed that as the vessel pressure increased, a high filling ratio resulted in an improved heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of flow characteristics in a vertical vibration two-phase loop thermosyphon

Wang

Chai

2022

THERM SCI

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In this paper, flow characteristics of a two-phase loop thermosyphon under vertical reciprocating vibration are visually investigated with N-pentane as the working fluid. The tests are performed for a heating power range of 20 W to 40 W, the filling ratio of 30 % to 70%, and a 30 m?s-2, 35 Hz vertical reciprocating vibration. The effect of vertical vibration on flow characteristics of the two-phase loop thermosyphon is investigated by comparing the obtained results with those acquired in static, thereby providing a basis for explaining the heat transfer process of two-phase loop thermosyphon under vibration. The results indicate that vertical vibration promotes the rupture of a liquid plug and the transformation of the plug flow to annular flow or wavy flow. Furthermore, the vertical vibration does not change the distribution law of liquid flow velocity in the two-phase loop thermosyphon. However, it will reduce the overheating and flow velocity in the two-phase loop thermosyphon at the start-up. With an increase in the heating power, the influence of vertical vibration on liquid flow velocity is reduced due to continuous disturbance of the working medium in the two-phase loop thermosyphon.

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Numerical simulation of the evaporator in two–phase thermosyphon loop for passive containment cooling system

Yin

Zhou

et al. 2023

Annals of Nuclear Energy

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Experimental investigation of two-phase thermosyphon loop for passive containment cooling

Cited by 14 publications

References 31 publications

Research Progress on Thermal Hydraulic Characteristics of Spent Fuel Pools: A Review

Research Progress on Thermal Hydraulic Characteristics of Spent Fuel Pools: A Review

Experimental investigation of flow characteristics in a vertical vibration two-phase loop thermosyphon

Numerical simulation of the evaporator in two–phase thermosyphon loop for passive containment cooling system

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