NUCLEAR TECHNIQUES, Volume. 48, Issue 4, 040607(2025)
Analysis on thermophysical property and thermodynamic performance of He-Xe Brayton cycle system
Figures & Tables(13)
Fig. 1. Variation of density of helium-xenon mixture with different helium mole fraction (color online)(a) Pressure 2 MPa, (b) Temperature 700 K
Fig. 2. Variation of compression factor of helium-xenon mixture with different helium mole fraction (color online)(a) Pressure 2 MPa, (b) Temperature 700 K
Fig. 3. Variation of the specific heat of helium-xenon mixture with different helium mole fraction (color online)(a) Pressure 2 MPa, (b) Temperature 700 K
Fig. 4. Variation of specific heat ratio of helium-xenon mixture with different helium mole fraction (color online)(a) Pressure 2 MPa, (b) Temperature 700 K
Fig. 5. Variation of viscosity of helium-xenon mixture with different helium mole fraction (color online)(a) Pressure 2 MPa, (b) Temperature 700 K
Fig. 6. Variation of thermal conductivity of helium-xenon mixture with different helium mole fraction (color online)(a) Pressure 2 MPa, (b) Temperature 700 K
Fig. 7. Variation of Prandtl number of helium-xenon mixture with different helium mole fraction (color online)(a) Pressure 2 MPa, (b) Temperature 700 K
Fig. 9. Variation of adiabatic coefficient of helium-xenon mixture with different helium mole fraction (color online)(a) Fixed pressure 2 MPa, (b) Fixed temperature 700 K
Fig. 10. Variation of relative pressure loss of helium-xenon mixture with different helium mole fraction (color online)(a) Pressure 2 MPa, (b) Temperature 700 K
Fig. 11. Variation of the relative convective heat transfer coefficient of helium xenon mixture with helium mole fraction (color online) (a) Fixed pressure 2 MPa, (b) Fixed temperature 700 K
Table 1. Pressure loss in each region of helium Brayton cycle
View tableView in ArticleTable 1. Pressure loss in each region of helium Brayton cycle
区域Region 压损Pressure loss / % 回热器冷端
Regenerator cold end
0.6 堆芯
Reactor core
0.7 回热器热端
Regenerator hot end
0.4 气体冷却器
Gas cooler
0.5 混合室
Mixing chamber
0.2
Table 2. Validation of thermodynamic model and thermodynamic model of He-Xe Brayton cycle system
View tableView in ArticleTable 2. Validation of thermodynamic model and thermodynamic model of He-Xe Brayton cycle system
参数Parameters 温度Temperature / K 压力Pressure / kPa 设计值
Design value
计算值
Calculation value
误差
Error / %
设计值
Design value
计算值
Calculation value
误差
Error / %
压缩机入口
Compressor inlet
400 400 — 470 470 — 压缩机出口
Compressor outlet
500.2 499.7 -0.099 751.5 752 0.067 堆芯入口
Core inlet
964 954.2 -1 747 747.49 0.066 堆芯出口
Core outlet
1 149 1 149 — 736.2 742.22 0.82 涡轮入口
Turbine inlet
1 144 1 137.6 -0.56 736 740.72 0.64 涡轮出口
Turbine outlet
988.4 984.9 -0.35 481.8 490.54 1.8 气体冷却器入口
Gas cooler inlet
535 539.5 -0.84 474.5 487.54 2.7
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Zhengcheng ZHAO, Haotian LUO, Yanan ZHAO, Tao YU. Analysis on thermophysical property and thermodynamic performance of He-Xe Brayton cycle system[J]. NUCLEAR TECHNIQUES, 2025, 48(4): 040607
Paper Information
Category: NUCLEAR ENERGY SCIENCE AND ENGINEERING
Received: Apr. 26, 2024
Accepted: --
Published Online: Jun. 3, 2025
The Author Email: Yanan ZHAO (赵亚楠)
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