NUCLEAR TECHNIQUES, Volume. 46, Issue 1, 010604(2023)
Temperature field and stress field analysis of molten salt U-tube heat exchanger based on fluid-thermal-solid coupling method
Figures & Tables(16)
Fig. 2. Mesh generation for the CFD analysis of heat exchanger for molten salt
Fig. 3. The cloud map of velocity distribution of molten salt heat exchanger in cross section
Fig. 5. The cloud map of pressure distribution of molten salt heat exchanger
Fig. 6. Cloud map of temperature distribution of heat transfer tubes and tube boxes for molten salt heat exchanger
Fig. 7. Cloud map of temperature distribution of tube sheet and tube box
Fig. 8. Cloud map of temperature distribution for shell side solid of molten salt heat exchanger
Fig. 9. Cloud map of stress distribution for tube sheet of molten salt heat exchanger
Fig. 10. Schematic diagram of path in tube sheet of molten salt heat exchanger
Fig. 11. Stress distribution along the path 1 of tube sheet thickness of molten salt heat exchanger
Fig. 12. Stress distribution along the path 2 of barrel thickness of molten salt heat exchanger
Table 1. Process parameters of heat exchanger
View tableView in ArticleTable 1. Process parameters of heat exchanger
参数名称Parameters 管程
Tube-side
壳程
Shell-side
设计压力Design pressure / MPa 0.50 0.50 设计温度Design temperature / ℃ 700 700 壳体长度The length of the shell / m — 2.0 壳体内径
Inner diameter of the shell / m
— 0.2 折流板间距Baffle spacing / m — 0.124 管数Tube number 18 — 管间距Tube pitch / m 0.02 —
Table 2. Physical properties of molten salt
View tableView in ArticleTable 2. Physical properties of molten salt
参数Parameters 熔盐Molten salt [ 16 ]密度Density / g·cm-3 ρ=2.613 3-6.431×10-4T (K) 比热容Specific heat capacity / J·(kg·K)-1 1 880 黏度Dynamic viscosity / Pa·s η=0.008 06 exp(-5 058.43/T+3.923 42×106/T2) 热导率Thermal conductivity / W·(m·K)-1 λ=-0.445 32+0.001 4T (K)
Table 3. Takeover load of molten salt heat exchanger
View tableView in ArticleTable 3. Takeover load of molten salt heat exchanger
管程入口接管载荷 Tube side inlet nozzle load 载荷Load FX / N FY / N FZ / N MX / Nm MY / Nm MZ / Nm -1 -87 515 -8 -1 -1 管程出口接管载荷 Tube side outlet nozzle load 载荷Load FX / N FY / N FZ / N MX / Nm MY / Nm MZ / Nm 1 -88 -571 55 -8 5 壳程入口接管载荷 Shell side inlet nozzle load 载荷Load FX / N FY / N FZ / N MX / Nm MY / Nm MZ / Nm -1 6 608 49 -39 15 壳程出口接管载荷 Shell side outlet nozzle load 载荷Load FX / N FY / N FZ / N MX / Nm MY / Nm MZ / Nm -1 6 608 49 -39 15
Table 4. The comparison between experiment and simulation analysis of molten salt heat exchanger
View tableView in ArticleTable 4. The comparison between experiment and simulation analysis of molten salt heat exchanger
参数名称
Parameters
冷盐出口温度
Outlet temperature of cold salt / ℃
热盐出口温度
Outlet temperature of hot salt / ℃
热功率
Thermal power / kW
实验值Experimental value 570.26 613.73 302.87 CFD值 Simulation value 567.95 614.99 293.55 偏差Deviation / % -0.41 0.20 -3.07
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Yushuang CHEN, Jian TIAN, Mengting DING, Yang ZOU, Naxiu WANG. Temperature field and stress field analysis of molten salt U-tube heat exchanger based on fluid-thermal-solid coupling method[J]. NUCLEAR TECHNIQUES, 2023, 46(1): 010604
Paper Information
Category: Research Articles
Received: Jun. 7, 2022
Accepted: --
Published Online: Feb. 17, 2023
The Author Email: TIAN Jian (tianjian@sinap.ac.cn)
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