Research on Performance Optimization of Nuclear Power System
251
Therefore, changing the above two parameters at the same time, as shown in Fig. 4,
it can be found that increasing the preheating temperature and reducing the pumping
capacity can effectively improve the cycle efficiency; without changing the high and low
improved to 38% without changing the high and low pressure parameters and equipment
efficiency of the system.
4 Suggested Directions for System Optimization
In order to take into account the operating parameters of the system and the limitation
of equipment space and weight, the multi-objective parameters needed for the overall
optimization of the parameters of the two-loop system are the heat efficiency of the
two-circuit, the power of the seawater pump, and the volume of the two-loop.
Further, the operating parameters of the high voltage section of the second loop will
affect the operation parameters of the first loop due to the limitation of safety margin,
heat transfer efficiency of the first and second loop. therefore, it is necessary to further
study the relationship between temperature pressure and cycle efficiency of the core
operation, and give some optimization suggestions such as adding preheater. In addition,
if the system thermal efficiency needs to be further improved, the parameters of single
equipment such as steam turbine and heat exchanger can be optimized to improve the
work and heat transfer efficiency, and the overall efficiency can also be slightly improved
to a certain extent.
5 Conclusions
According to the design scheme of typical secondary circuit system, the physical model
of secondary circuit including steam turbine, condenser, feed water pump and preheater is
established in MATLAB software. Compared with the master parameters, the model has
high accuracy and meets the requirements of performance analysis. Secondly, the main
performance parameters of the second loop are analyzed, and the efficiency calculation
of the simple Rankine cycle and the Rankine cycle with exhaust gas is completed. The
optimization direction of the system parameters can be obtained by the performance
analysis.
References
1. Rezelovich, A.: Nuclear Wet Steam Turbine. Xie Yonghui, Zhang, p. 283. Xi’ an Jiaotong
University Press, Xi’an (2013)
2. Fengge, P., Minjun, P.: Nuclear Power Plant for Ships. Harbin Engineering University Press,
Harbin (2015)
3. Xinian, Z.: Nuclear Power Plant Systems and Equipment, pp. 266–269. Tsinghua University
Press (2017)
4. Bingchen, W., Guobiao, L., Lei, D.: analysis and optimization of the structure of the main hoist
for nuclear power plant pile mechanical. Des. Manuf. Eng. 48(03), 6–10 (2019)
251
Therefore, changing the above two parameters at the same time, as shown in Fig. 4,
it can be found that increasing the preheating temperature and reducing the pumping
capacity can effectively improve the cycle efficiency; without changing the high and low
improved to 38% without changing the high and low pressure parameters and equipment
efficiency of the system.
4 Suggested Directions for System Optimization
In order to take into account the operating parameters of the system and the limitation
of equipment space and weight, the multi-objective parameters needed for the overall
optimization of the parameters of the two-loop system are the heat efficiency of the
two-circuit, the power of the seawater pump, and the volume of the two-loop.
Further, the operating parameters of the high voltage section of the second loop will
affect the operation parameters of the first loop due to the limitation of safety margin,
heat transfer efficiency of the first and second loop. therefore, it is necessary to further
study the relationship between temperature pressure and cycle efficiency of the core
operation, and give some optimization suggestions such as adding preheater. In addition,
if the system thermal efficiency needs to be further improved, the parameters of single
equipment such as steam turbine and heat exchanger can be optimized to improve the
work and heat transfer efficiency, and the overall efficiency can also be slightly improved
to a certain extent.
5 Conclusions
According to the design scheme of typical secondary circuit system, the physical model
of secondary circuit including steam turbine, condenser, feed water pump and preheater is
established in MATLAB software. Compared with the master parameters, the model has
high accuracy and meets the requirements of performance analysis. Secondly, the main
performance parameters of the second loop are analyzed, and the efficiency calculation
of the simple Rankine cycle and the Rankine cycle with exhaust gas is completed. The
optimization direction of the system parameters can be obtained by the performance
analysis.
References
1. Rezelovich, A.: Nuclear Wet Steam Turbine. Xie Yonghui, Zhang, p. 283. Xi’ an Jiaotong
University Press, Xi’an (2013)
2. Fengge, P., Minjun, P.: Nuclear Power Plant for Ships. Harbin Engineering University Press,
Harbin (2015)
3. Xinian, Z.: Nuclear Power Plant Systems and Equipment, pp. 266–269. Tsinghua University
Press (2017)
4. Bingchen, W., Guobiao, L., Lei, D.: analysis and optimization of the structure of the main hoist
for nuclear power plant pile mechanical. Des. Manuf. Eng. 48(03), 6–10 (2019)