Thermodynamic Analysis and Optimization of Mobile Nuclear System
This paper develops a system–component integrated design method for a closed Brayton cycle in a nuclear-powered emergency power vehicle, optimizing the thermodynamic performance by varying the maximum operating temperature and pressure, minimum operating temperature, helium–xenon gas molar mass, and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/1/113 |
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| _version_ | 1841549244915253248 |
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| author | Guobin Jia Guifeng Zhu Yuwen Ma Jingen Chen Yang Zou |
| author_facet | Guobin Jia Guifeng Zhu Yuwen Ma Jingen Chen Yang Zou |
| author_sort | Guobin Jia |
| collection | DOAJ |
| description | This paper develops a system–component integrated design method for a closed Brayton cycle in a nuclear-powered emergency power vehicle, optimizing the thermodynamic performance by varying the maximum operating temperature and pressure, minimum operating temperature, helium–xenon gas molar mass, and PCHE parameters to maximize the specific power and thermal efficiency. The key results are as follows: (1) The maximum allowable pressure decreases with the temperature, and the specific power increases for both the SRC and the IRC without considering the ultimate heat sink. (2) The PCHE weight is minimized at a helium–xenon gas molar mass of 25 g/mol, while the turbomachine’s weight decreases with an increasing molar mass, leading to an overall system weight reduction. (3) The thermal efficiency decreases with lower minimum operating temperatures, optimizing at 350 K due to a precooler weight increase. (4) The thermal efficiency plateaus after a certain number of PCHE channels, with the recuperator effectiveness significantly impacting the performance. (5) The SRC, with a specific power and a thermal efficiency of 194.38 kW/kg and 39.19%, is preferred over the IRC for the SIMONS due to its mobility and rapid deployment. This study offers a comprehensive analysis for optimizing closed Brayton cycle systems in emergency power applications. |
| format | Article |
| id | doaj-art-0a968b5e9725488c8b66880d6c17eaae |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-0a968b5e9725488c8b66880d6c17eaae2025-01-10T13:17:08ZengMDPI AGEnergies1996-10732024-12-0118111310.3390/en18010113Thermodynamic Analysis and Optimization of Mobile Nuclear SystemGuobin Jia0Guifeng Zhu1Yuwen Ma2Jingen Chen3Yang Zou4Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaThis paper develops a system–component integrated design method for a closed Brayton cycle in a nuclear-powered emergency power vehicle, optimizing the thermodynamic performance by varying the maximum operating temperature and pressure, minimum operating temperature, helium–xenon gas molar mass, and PCHE parameters to maximize the specific power and thermal efficiency. The key results are as follows: (1) The maximum allowable pressure decreases with the temperature, and the specific power increases for both the SRC and the IRC without considering the ultimate heat sink. (2) The PCHE weight is minimized at a helium–xenon gas molar mass of 25 g/mol, while the turbomachine’s weight decreases with an increasing molar mass, leading to an overall system weight reduction. (3) The thermal efficiency decreases with lower minimum operating temperatures, optimizing at 350 K due to a precooler weight increase. (4) The thermal efficiency plateaus after a certain number of PCHE channels, with the recuperator effectiveness significantly impacting the performance. (5) The SRC, with a specific power and a thermal efficiency of 194.38 kW/kg and 39.19%, is preferred over the IRC for the SIMONS due to its mobility and rapid deployment. This study offers a comprehensive analysis for optimizing closed Brayton cycle systems in emergency power applications.https://www.mdpi.com/1996-1073/18/1/113system–component integrated design methodspecific powerHe-Xe binary mixture gasclosed Brayton cyclemobile nuclear system |
| spellingShingle | Guobin Jia Guifeng Zhu Yuwen Ma Jingen Chen Yang Zou Thermodynamic Analysis and Optimization of Mobile Nuclear System Energies system–component integrated design method specific power He-Xe binary mixture gas closed Brayton cycle mobile nuclear system |
| title | Thermodynamic Analysis and Optimization of Mobile Nuclear System |
| title_full | Thermodynamic Analysis and Optimization of Mobile Nuclear System |
| title_fullStr | Thermodynamic Analysis and Optimization of Mobile Nuclear System |
| title_full_unstemmed | Thermodynamic Analysis and Optimization of Mobile Nuclear System |
| title_short | Thermodynamic Analysis and Optimization of Mobile Nuclear System |
| title_sort | thermodynamic analysis and optimization of mobile nuclear system |
| topic | system–component integrated design method specific power He-Xe binary mixture gas closed Brayton cycle mobile nuclear system |
| url | https://www.mdpi.com/1996-1073/18/1/113 |
| work_keys_str_mv | AT guobinjia thermodynamicanalysisandoptimizationofmobilenuclearsystem AT guifengzhu thermodynamicanalysisandoptimizationofmobilenuclearsystem AT yuwenma thermodynamicanalysisandoptimizationofmobilenuclearsystem AT jingenchen thermodynamicanalysisandoptimizationofmobilenuclearsystem AT yangzou thermodynamicanalysisandoptimizationofmobilenuclearsystem |