Numerical study on the boiling heat transfer and critical heat flux in a simplified fuel assembly with 2× 2 helical cruciform rods

T Cong, Y Xiao, B Wang, H Gu - Progress in Nuclear Energy, 2022 - Elsevier
The helical cruciform fuel was potential to upgrade the core power density while maintaining
the safety margin of a reactor. However, the detailed analysis on the boiling phenomena …

Transverse mixing characteristics of single-phase flow in the helical cruciform fuel assembly

T Cong, Q Zhang, J Zhu, Y Xiao, H Guo, H Gu - Annals of Nuclear Energy, 2023 - Elsevier
The helical-cruciform fuel (HCF), with four-petalled twisted blades, is potential to improve the
core power density while maintaining the safety margin for the current reactors. However …

Numerical study on transverse mixing characteristics of flow sweeping in helical cruciform rod bundle

D Jiang, D Zhang, W Tian, S Qiu, GH Su - Applied Thermal Engineering, 2023 - Elsevier
Fluoride salt serves as a coolant in the fluoride-salt-cooled high-temperature reactor and
flows through the reactor core to remove heat produced by the nuclear fuel. To enhance the …

Numerical analysis of the three-dimensional flow phenomena in a 19-pin wire-wrapped tight lattice bundle

J Li, Y Xiao, G Ding, Z Xiong, H Gu - International Journal of Heat and Mass …, 2022 - Elsevier
The wire-wrapped tight lattice assembly has the advantages of compact arrangement, small
volume, and high power density, and it has been widely used in the design of advanced …

Preliminary Thermal-Mechanical coupled modeling of U-10Mo helical cruciform fuel rods under the unirradiated and irradiated conditions

M Cai, T Cong, Y Xiao, H Gu - Annals of Nuclear Energy, 2023 - Elsevier
The helical cruciform fuel (HCF) rods show an axially twisted shape with four-petaled profile,
thus providing enhanced heat transfer performance and mechanical self-supporting. In this …

Numerical simulation of flow and heat transfer phenomenon of helical cruciform fuel assembly under subcooled boiling

Q Zhang, H Wang, J Li, C Li, F Qi, Y Zhou, H Gu… - Progress in Nuclear …, 2024 - Elsevier
The helical cruciform fuel (HCF) is designed with the functional and structural integration
concept. The function of the conventional spacer grid is replaced by the spiral structures …

Numerical study on convective heat transfer characteristics of supercritical nitrogen in a helical cruciform tube

L Fan, Q Yu, G Yu, F Yan, X Liu - Applied Thermal Engineering, 2024 - Elsevier
The heat transfer of supercritical nitrogen (SCN) is of vital importance to liquid air energy
storage, cold energy recovery of liquefied natural gas and thermal management of …

Experimental study on flow and heat transfer of medium-Prandtl-number fluid along a hexagonal helical cruciform seven-rods

D Jiang, D Zhang, W Tian, S Qiu, GH Su - International Journal of Heat and …, 2024 - Elsevier
A novel type of nuclear fuel named helical cruciform fuel may realize self-supporting for
adjacent elements and improve heat transfer, both of which contribute to increasing the …

Study on multi-scale coupled simulation of natural circulation system with 3× 3 petal-shaped fuel bundle channel under rolling condition

J Cao, J Sun, X Meng, W Zhang, Q Li, W Cai - Annals of Nuclear Energy, 2024 - Elsevier
Petal-shaped fuel rod encompasses a broad application prospect in sea-based nuclear
power plants. A multi-scale coupled simulation is conducted based on natural circulation …

Experimental analysis and two-region mixing coefficients development for a wire-wrapped tight lattice bundle

J Li, Y Xiao, J Fu, Q Zhang, Z Xiong, H Gu - Annals of Nuclear Energy, 2023 - Elsevier
Wire-wrapped tight lattice fuel assemblies are widely used in the design of advanced
nuclear reactors for their advantages of higher power density and enhanced heat transfer …