NUCLEAR TECHNIQUES, Volume. 47, Issue 5, 050014(2024)
Comparison of CFETR nuclear fusion power plant thermal storage technology
Figures & Tables(11)
Table 1. Comparison of nuclear fusion cladding schemes
View tableView in ArticleTable 1. Comparison of nuclear fusion cladding schemes
名称Items 冷却介质
Cooling medium
进口温度Inlet temperature / ℃ 出口温度Outlet temperature / ℃ 运行压力Operating pressure / MPa 水冷包层WCCB 水Water ~290 ~325 ~15.5 氦冷包层HCCB 氦气Helium ~300 ~600 ~12
Table 2. CSP system parameters
View tableView in ArticleTable 2. CSP system parameters
名称Items 参数Parameter 成熟度Technical maturity 商业化Commercialization 容量Capacity / MW 50~100 工作温度Operation temperature / ℃ 290~565 主蒸汽参数Main steam parameters 温度Temperature 540 ℃；压力Pressure 10~16 MPa 导热工质Thermal conductive medium 熔融盐Fuse salt 储存系统Storage system 直接双罐熔盐储存（290~565 ℃）Dual tank molten salt storage
Table 3. High temperature molten salt material parameters
View tableView in ArticleTable 3. High temperature molten salt material parameters
名称Items 熔点Melting point / ℃ 分解温度Decomposition temperature / ℃ Solar Salt 240 565 Hitec 142 450 Hitec XL 130 450 LiNaKNO3 118 550 LiNaKCaNO3 93 450 LiNaKNO3NO2 97 450 KMgCl 430 >700 NaKMgCl 383 >700 NaMgCaCl 407 650 NaKZnCl 204 >700 KMgZnCl 356 >700 LiNaKF 454 >700 NaBF 385 >700 KBF 460 >700 KZrF 420 >700 LiNaKCO3 397 670
Table 4. Solid state sensible heat storage material parameters
View tableView in ArticleTable 4. Solid state sensible heat storage material parameters
名称Items 工作温度Operation temperature / ℃ 密度Density / kg·m-3 导热系数Thermal conductivity coefficient / W·(m·K)-1 比热容Specific heat capacity / kJ·(kg·K)-1 砂岩矿物油Sandstone mineral oil 200~300 1 700 1.0 1.3 钢筋混凝土Concrete 200~400 2 200 1.5 0.85 固体NaCl Solid NaCl 200~500 2 160 7.0 0.85 铸铁Cast iron 200~400 7 200 37.0 0.56 铸钢Cast steel 200~700 7 800 40.0 0.6 硅石耐火砖Silica brick 200~700 1 820 1.5 1.0 镁质耐火砖Magnesia brick 200~1 200 3 000 5.0 1.15
Table 5. High temperature phase change material parameters
View tableView in ArticleTable 5. High temperature phase change material parameters
名称Items 熔点Melting point / ℃ 潜热Latent heat / kJ∙kg-1 价格Price / $∙t-1 NaCl-NiCl2 573 558 2 957 LiCl 610 416 8 250 LiF-NaF-CaF2-MgF2[ 28 ]593~595 510~515 58 616 LiF-NaF-CaF2 615 640 104 330 KBr-KF 576 315 1 631 LiCl-MgF2 573 131 11 371 KCl-KF 605 407 1 019 KBr-K2MoO4 625 90.5 4 522
Table 6. Chemical thermal storage working fluid pair parameters
View tableView in ArticleTable 6. Chemical thermal storage working fluid pair parameters
反应方程式Reaction equation 吸热温度Heat storage temperature / ℃ 储热密度Heat storage density / kJ∙kg-1 CaO+H2O⇌Ca(OH)2[ 30 ]400~600 1 402 Ba(OH)2⇌BaO+H2O[ 30 ]500~700 875 Sr(OH)2⇌SrO+H2O[ 30 ]500~600 1 118 CaCO3⇌CaO+CO2[ 30 ]650~900 1 778 BaO2⇌BaO+1/2O2[ 30 ]600~900 474 Co3O4⇌3CoO+1/2O2[ 30 ]600~1 000 844 6Mn2O3⇌4Mn3O4+O2[ 30 ]500~1 000 202
Table 7. Cost calculation parameters and results of solid-phase sensible heat storage materials
View tableView in ArticleTable 7. Cost calculation parameters and results of solid-phase sensible heat storage materials
名称Items Q / kJ C / kJ∙(kg∙K)-1 / ℃ / $∙kg-1 / $ 铸钢Cast steel 1.29×109 0.6 300 2.4 1.7×107 硅砖Silica brick 1.29×109 1.0 300 1.4 6.0×106
Table 8. Calculation parameters and results of solid-phase sensible heat storage and insulation cost
View tableView in ArticleTable 8. Calculation parameters and results of solid-phase sensible heat storage and insulation cost
名称Items 密度Density/ kg∙m-3 填充密度Fill density 体积 Volume/ m³ 温度Tempera-ture / ℃ 保温成本Insu-lation cost / $ 混凝土（参照）Concrete (reference) 2 500 0.75 0.67 400 835.87 硅砖Silica brick 1 820 0.75 3 138 600 421 278 铸钢Cast steel 7 800 0.75 1 220 600 224 180
Table 9. Thermal conductivity comparison
View tableView in ArticleTable 9. Thermal conductivity comparison
名称Item 导热系数Thermal conductivity coefficient / W∙(m∙K)-1 空气（文献值）Air (literature value) 0.121 氦气Helium 0.238 6 混凝土（文献值）Concrete (literature value) 1.5~2 硅砖Silica brick 1, 5 铸钢Cast steel 40
Table 10. Solid state sensible heat storage cost ($)
View tableView in ArticleTable 10. Solid state sensible heat storage cost ($)
成本类型Cost type 硅砖（占比）Silica brick 铸钢（占比）Cast steel 材料成本Material cost 5 997 600（53.5%） 17 136 000（70.6%） 保温成本Insulation cost 421 278（3.8%） 224 180（0.9%） 基础成本Foundation cost 7 542 029（6.7%） 1 257 004（5.2%） 管道成本Pipeline cost 1 768 477（25.8%） 0（0%） 安装成本Installation cost 1 378 351（12.3%） 3 799 544（15.6%） 间接成本Indirect costs 894 156（8.0%） 1 861 718（7.7%） 总计Sum 11 214 064（100%） 24 278 446（100%）
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Haodong LUO, Yan LIN, Bin LI, Kui XIANG, Guangtao ZHU, Tao ZENG. Comparison of CFETR nuclear fusion power plant thermal storage technology[J]. NUCLEAR TECHNIQUES, 2024, 47(5): 050014
Paper Information
Category: Research Articles
Received: Apr. 29, 2024
Accepted: --
Published Online: Jul. 8, 2024
The Author Email: ZENG Tao (曾涛)
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