NUCLEAR TECHNIQUES, Volume. 48, Issue 7, 070012(2025)
Conceptual design and overall scheme for a vehicle-mounted mobile megawatt-scale nuclear power system for heat pipe cooled reactor
Figures & Tables(35)
Fig. 3. Schematic diagram of the structure of the center control rod assembly
Fig. 8. Schematic diagram of parallel channel construction of heat pipe heat exchanger
Fig. 9. Block diagram of components of the energy conversion system[13]
Fig. 10. Results of parameter matching calculation of energy conversion system
Fig. 11. Diagram of three-dimensional model of compressor(a) Whole machine model, (b) Impeller model, (c) Series diffuser model
Fig. 12. Internal flow field diagram of compressor (color online)(a) Meridional flow velocity distribution, (b) Meridional static pressure distribution
Fig. 13. Diagram of three-dimensional model of turbine blade profile
Fig. 14. Diagram of the internal flow field of turbine (color online)(a) Meridional flow velocity distribution of the impeller, (b) Mach number distribution at 50% blade height section
Fig. 19. Schematic diagram of the arrangement of cooler tube sides
Fig. 20. Overall three-dimensional schematic of the vehicle-mounted mobile nuclear power system
Table 1. Materials selection for heat pipe cooled reactor
View tableView in ArticleTable 1. Materials selection for heat pipe cooled reactor
对象Object 材料Material 对象Object 材料Material 燃料颗粒Fuel particle 碳化铀UC 热管包壳Heat pipe cladding 钼锆钛合金TZM 燃料基体Fuel base 钨铁合金W-Fe 控制鼓Control drum 碳化硼B4C 包壳Cladding 钨铁合金W-Fe 中心控制棒Central control rod 碳化硼B4C 结构Structure 钼铼合金Mo-Re 反射体Reflector 氧化铍BeO
Table 2. Weight of reactor system components (t)
View tableView in ArticleTable 2. Weight of reactor system components (t)
参数Parameter 值Value 堆芯重量Core weight 1.750 反射体Reflector weight 0.529 结构体Constructor weight 0.092 控制部件Control part weight 0.014 热管Heat pipes weight 0.329 堆芯结构支撑
Core structural support weight
0.385 热管换热器Heat pipe exchanger weight 0.815 总重量Total weight 3.915
Table 3. Structural design of high temperature lithium heat pipe (mm)
View tableView in ArticleTable 3. Structural design of high temperature lithium heat pipe (mm)
参数Parameter 值Value 外径Outer diameter 20 壁厚Wall thickness 1 吸液芯厚度Wick thickness 1 蒸汽腔内径Inter diameter of steam cavity 16 蒸发段长度Length of evaporator 630 冷凝段长度Length of condenser 1 000 绝热段长度Length of adiabatic section 200
Table 4. Design parameters of high temperature lithium heat pipe's wick
View tableView in ArticleTable 4. Design parameters of high temperature lithium heat pipe's wick
参数Parameter 值Value 吸液芯种类Type of wick 丝网吸液芯Mesh wick 导热系数Thermal conductivity / W∙m-1∙K-1 40.0 吸液芯材料Wick material 白钼丝网White Mo 目数Mesh number of wick / cm-1 80~120 层数Number of wick 2
Table 5. Design conditions of energy conversion system
View tableView in ArticleTable 5. Design conditions of energy conversion system
参数Parameter 值Value 循环最高温度
Maximum temperature of the cycle / ℃
800 空气入口温度Air inlet temperature / ℃ 15 空气入口压力Air inlet pressure / kPa 101 冷却空气温度Cooling air temperature / ℃ 15
Table 6. Parameter matching condition of energy conversion system
View tableView in ArticleTable 6. Parameter matching condition of energy conversion system
参数Parameter 值Value 参数Parameter 值Value 压气机入口压力Inlet pressure of the compressor / kPa 101 闭式循环泵入口压力Inlet pressure of the closed-cycle pump / kPa 500 压气机入口温度Inlet temperature of the compressor / ℃ 15 闭式循环泵入口温度Inlet temperature of the closed-cycle pump / ℃ 35 压气机效率Compressor efficiency / % 80 闭式循环泵效率Closed-cycle pump efficiency / % 75 开式循环涡轮效率Open-cycle turbine efficiency / % 88 闭式循环涡轮效率Closed-cycle turbine efficiency / % 80 开式-闭式循环换热器空气侧流阻Air-side flow resistance of the open-closed cycle heat exchanger / kPa 6 机械效率Mechanical efficiency / % 98 开式-闭式循环换热器液侧流阻Liquid-side flow resistance of the open-closed cycle heat exchanger / kPa 25 电机效率Motor efficiency / % 97 开式循环涡轮入口温度Inlet temperature of the open-cycle turbine / ℃ 800
Table 7. Calculation result of system parameter matching
View tableView in ArticleTable 7. Calculation result of system parameter matching
参数
Parameter
值Value 参数
Parameter
值Value 参数
Parameter
值Value 系统发电功率
System power generation / kW
1 067.5 开式循环流量
Open-cycle flow rate / kg∙s-1
9.23 闭式循环流量
Closed-cycle flow rate / kg∙s-1
6.70 系统吸热量
System heat absorption / kW
3 002.5 开式循环功率
Open-cycle power output / kW
922.5 闭式循环功率
Closed-cycle power output / kW
145.0 系统总效率
Total system efficiency / %
35.55 开式循环效率
Open-cycle efficiency / %
30.72 闭式循环效率
Closed-cycle efficiency / %
8.18
Table 8. Main design and performance parameters of the compressor
View tableView in ArticleTable 8. Main design and performance parameters of the compressor
参数Parameter 值Value 参数Parameter 值Value 参数Parameter 值Value 进口温度
Inlet temperature / °C
15 设计点流量
Design point mass flow / kg∙s-1
9.23 叶顶间隙
Tip clearance / mm
0.6 进口压力
Inlet pressure / kPa
101 叶轮直径
Impeller diameter / mm
508 气动效率
Aerodynamic efficiency / %
83.83 出口压力
Outlet pressure / kPa
384 蜗壳进口直径
Volute inlet diameter / mm
780 气动耗功
Aerodynamic power / kW
1 555 压比
Pressure ratio
3.8 转速
Rotational speed / r∙min-1
20 000
Table 9. Main design and performance parameters of the turbine
View tableView in ArticleTable 9. Main design and performance parameters of the turbine
参数Parameter 值Value 参数Parameter 值Value 参数Parameter 值Value 进口温度
Inlet temperature / °C
800 设计点流量
Design point mass flow / kg∙s-1
9.23 气动效率
Aerodynamic efficiency / %
91.85 进口压力
Inlet pressure / kPa
365 最大直径
Maximum diameter / mm
461 气动出功
Aerodynamic power / kW
2 660 出口压力
Outlet pressure / kPa
114 转速
Rotational speed / r∙min-1
20 000 膨胀比
Expansion ratio
3.20 叶顶间隙
Tip clearance / mm
0.5
Table 10. Design indexes of regenerator
View tableView in ArticleTable 10. Design indexes of regenerator
参数
Parameter
冷侧值
Cold side value
热侧值
Hot side value
入口温度
Inlet temperature / °C
182 558 入口压力
Inlet pressure / kPa
384 114 出口温度
Outlet temperature / °C
510 233 出口压力
Outlet pressure / kPa
374 108 流动阻力
Flow resistance / kPa
≤10 ≤7 换热量Heat exchange / MW ≥ 3.1 效率Efficiency / % ≥ 87
Table 11. Design indexes of heat exchanger
View tableView in ArticleTable 11. Design indexes of heat exchanger
参数
Parameter
空气侧
Air side
value
有机工质侧
Organic working fluid side value
入口温度
Inlet temperature / °C
233 36 入口压力
Inlet pressure / kPa
107 2 550 出口温度
Outlet temperature / °C
43 147 出口压力
Outlet pressure / kPa
101 2 525 流动阻力
Flow resistance / kPa
≤ 6 ≤ 25 换热量
Heat exchange / MW
≥ 1.7
Table 12. Main design and performance parameters of the closed cycle turbine
View tableView in ArticleTable 12. Main design and performance parameters of the closed cycle turbine
参数Parameter 值Value 参数Parameter 值Value 参数Parameter 值Value 进口温度
Inlet temperature / °C
147 膨胀比
Expansion ratio
4.96 转速
Rotational speed / r∙min-1
46 500 进口压力
Inlet pressure / MPa
2.53 设计点流量
Design point mass flow / kg∙s-1
6.70 气动效率
Aerodynamic efficiency / %
84.8 出口压力
Outlet pressure / MPa
0.51 叶轮直径
Impeller diameter / mm
92 气动出功
Aerodynamic power output / kW
176.5
Table 13. Design indexes of cooler
View tableView in ArticleTable 13. Design indexes of cooler
参数
Parameter
有机工质侧
Organic working fluid side value
入口温度
Inlet temperature / °C
98.0 入口压力
Inlet pressure / kPa
510 出口温度
Outlet temperature / °C
≤35.0 出口压力
Outlet pressure / kPa
500 流量
Mass flow rate / kg∙s-1
6.70 流动阻力
Flow resistance / kPa
≤10 换热量
Heat exchange / MW
≥1.62
Table 14. Output power and power generation efficiency of the overall mobile nuclear power system
View tableView in ArticleTable 14. Output power and power generation efficiency of the overall mobile nuclear power system
参数Parameter 值Value 能量转换系统输出功率
Energy conversion system output power / kW
1 067.5 反应堆热功率
Reactor thermal power / kW
3 002.5 能量转换系统效率
Energy conversion system efficiency / %
35.55 系统附件功耗Power consumption of system auxiliary components / kW 14.7 移动核电源总体系统输出功率
Mobile nuclear power system output power / kW
1 052.8 移动核电源总体系统发电效率Mobile nuclear power system generation efficiency / % 35.06
Table 15. Dimensions and weight parameters of the vehicle-mounted mobile nuclear power system
View tableView in ArticleTable 15. Dimensions and weight parameters of the vehicle-mounted mobile nuclear power system
参数Parameter 值Value 外形尺寸（内容积）External dimensions (internal volume) / mm 2 312×2 460×11 480 反应堆重量
Reactor weight / kg
3 915 屏蔽系统重量
Shielding system weight / kg
21 190 能量转换系统重量
Energy conversion system weight / kg
14 600 控制系统重量
Control system weight / kg
1 320 支承系统重量
Support system weight / kg
2 500 辅助系统重量
Auxiliary system weight / kg
2 385 整体系统总重
Overall system weight / kg
45 910
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Henglong LIN, Zeguang LI, Jun YANG, Zilin SU, Huifu WANG, Pengzhi ZHANG, Weilin ZHUGE, Hongsheng JIANG. Conceptual design and overall scheme for a vehicle-mounted mobile megawatt-scale nuclear power system for heat pipe cooled reactor[J]. NUCLEAR TECHNIQUES, 2025, 48(7): 070012
Paper Information
Category: Special Issue on The First Academic Annual Conference of the Research Reactor and Innovative Reactor Association of Chinese Nuclear Society and Advanced Nuclear Power System Reactor Engineering
Received: Dec. 20, 2024
Accepted: --
Published Online: Sep. 15, 2025
The Author Email: Zeguang LI (LIZeguang)
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