The Numerical Simulation for the Heat Transfer Enhancement Experiments of the HCCB-TBM First Wall

Cheng, Dajun; Deng, Haifei; Shi, Bo; Han, J.T.; Yang, Jin Min; Wang, Hui

doi:10.1109/tps.2018.2810251

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…The insert intensifies the heat transfer between the pipe wall and the gas by using the phenomenon of thermal radiation absorption. In [14], numerical simulation results were compared to acquire optimized heat transfer enhancement schemes such as placing transversal ribs and V-shaped ribs in the flow channel.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Convective Heat Transfer Coefficient Enhancement of a Pyro-Breaker Utilized in Superconducting Fusion Facilities

Wang

2021

Energies

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The conductive components of the pyro-breaker in the quench protection system (QPS) have high current density, a large number of electrical contacts and high thermal flux. The water system needs to meet the requirements of cooling and arc extinguishing at the same time. In a previous study, the bottleneck of the steady-state capacity appeared in the barrel conductor of the commutation section, which has a cylindrical cavity. The thermal stability of the commutation section at 100 kA level was simulated in ANSYS/Workbench. The results indicate a certain level of enhancement of the convective heat transfer coefficient of the cavity is required to reach the current capacity. However, the fluid flow inside the cavity is very complex, and the convective heat transfer coefficient is difficult to calculate. In this paper, Computational fluid dynamics (CFD) is applied to the optimization of the cooling water system of the pyro-breaker. By studying the enhancement method of convective heat transfer, optimization of the structure and processing method of the water channel are proposed. The convective heat transfer coefficients of the cylindrical cavity in these optimizations were calculated in CFX. A set of optimizations of the cavity, which can meet the requirements of China Fusion Engineering Test Reactor (CFETR), were obtained and verified by experiments.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Convective Heat Transfer Coefficient Enhancement of a Pyro-Breaker Utilized in Superconducting Fusion Facilities

Wang

2021

Energies

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Thermal hydraulic analysis on the heat transfer enhancement of the COOL blanket first wall for CFETR

Feng,

Jiang,

Chen

et al. 2025

Fusion Engineering and Design

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Numerical investigation of thermo hydraulic characteristics of monoblock module of EAST divertor

Cheng

Shi

Deng

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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The Engineering design of divertor is one of the most important topics in nuclear fusion research. The primary problem in the design of divertor is to discharge the large amount of energy from high-energy plasma particles to ensure that the operation of fusion devices can be safe and stable for a long time. Based on the temperature of the divertor target plate measured in a discharge of the EAST experimental device, we carry out numerical simulations to examine the thermal and hydraulic performance of the Monoblock module. The ANSYS software is used for the simulations on the fluid-solid coupling phenomenon of a simplified model. The ANSYS parallel module and 30 CPUs are used for parallel computing, and periodic temperature pulses are loaded on the top surface of a tungsten divertor tile to investigate the thermo-hydraulic characteristics of Monoblock module. We find the pattern in which the distributions of temperature and heat flux change over time. The maximum temperature mainly depends on the peak heat flux of high-energy particles and the duration of pulses, The temperature of the interface of each component and of coolant outlet are all related to the density of discharge pulse and the duration of discharge, and the temperature of the interface of each component will reach to an equilibrium under the condition of stable discharge heat flow. The results provide support for the structural design of a stable EAST divertor.

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The Numerical Simulation for the Heat Transfer Enhancement Experiments of the HCCB-TBM First Wall

Cited by 3 publications

References 12 publications

Numerical Analysis of the Convective Heat Transfer Coefficient Enhancement of a Pyro-Breaker Utilized in Superconducting Fusion Facilities

Numerical Analysis of the Convective Heat Transfer Coefficient Enhancement of a Pyro-Breaker Utilized in Superconducting Fusion Facilities

Thermal hydraulic analysis on the heat transfer enhancement of the COOL blanket first wall for CFETR

Numerical investigation of thermo hydraulic characteristics of monoblock module of EAST divertor

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