Constructal design for dual-pressure axial-flow turbine in organic Rankine cycle
被引:7
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作者:
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Chen, Lingen
[1
,3
,4
]
Wu, Zhixiang
论文数: 0引用数: 0
h-index: 0
机构:
PLA, Unit 91404, Qinhuangdao 066001, Hebei, Peoples R ChinaWuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Wu, Zhixiang
[2
]
Feng, Huijun
论文数: 0引用数: 0
h-index: 0
机构:
Wuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Hubei Prov Engn Technol Res Ctr Green Chem Equipm, Wuhan 430205, Peoples R China
Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430205, Peoples R ChinaWuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Feng, Huijun
[1
,3
,4
]
Ge, Yanlin
论文数: 0引用数: 0
h-index: 0
机构:
Wuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Hubei Prov Engn Technol Res Ctr Green Chem Equipm, Wuhan 430205, Peoples R China
Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430205, Peoples R ChinaWuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Ge, Yanlin
[1
,3
,4
]
机构:
[1] Wuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
[2] PLA, Unit 91404, Qinhuangdao 066001, Hebei, Peoples R China
[3] Hubei Prov Engn Technol Res Ctr Green Chem Equipm, Wuhan 430205, Peoples R China
[4] Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430205, Peoples R China
Dual-pressure organic Rankine cycle (ORC) has great advantages in low-temperature waste heat utilization systems. There are few studies on optimizing the performance and structure of the dual-pressure turbine, which is a key part of the dual-pressure ORC. The constructal design is performed for a dual-pressure axial-flow turbine (AFT) in a dual-pressure ORC to improve the turbine and cycle performances. Total power is taken as optimization objective function, volume ratio of the high-pressure turbine (HPT) and inlet pressure of the low-pressure turbine (LPT) are chosen as optimization variables, and total volume is employed as a constraint. After obtaining the optimization results, the impacts of some flow and structure parameters are analyzed. Furthermore, performances of the dual-and single-pressure AFTs are contrasted. The results demonstrate that the total powers of the dual-pressure AFT after the primary and twice optimizations are increased by 0.97% and 1.69% compared with the initial value, respectively. After the twice optimization, the optimal construct of the dual-pressure AFT is that the volume ratio of the HPT and inlet pressure of the LPT are 0.072 and 695 kPa, respectively. The nozzle inlet hub to tip radius ratios of the two turbines and the working-fluid mass flow rate ratio positively impact the total power, while the total volume hurts it. Besides, the dual-pressure AFT has a better performance advantage than the single-pressure AFT, and the total power of the former is 16.59% higher than that of the latter. The results confirm that the dual pressure is more suitable for low-temperature waste heat utilization systems than the single pressure and provide strategies for improving the turbine performance. (C) 2021 The Author(s). Published by Elsevier Ltd.
机构:
Wuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Naval Univ Engn, Coll Power Engn, Wuhan 430033, Peoples R China
Hubei Prov Engn Technol Res Ctr Green Chem Equipm, Wuhan 430205, Peoples R China
Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430205, Peoples R ChinaWuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Feng, Huijun
论文数: 引用数:
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Chen, Lingen
Tang, Wei
论文数: 0引用数: 0
h-index: 0
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Naval Univ Engn, Coll Power Engn, Wuhan 430033, Peoples R ChinaWuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Tang, Wei
Ge, Yanlin
论文数: 0引用数: 0
h-index: 0
机构:
Wuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
Hubei Prov Engn Technol Res Ctr Green Chem Equipm, Wuhan 430205, Peoples R China
Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430205, Peoples R ChinaWuhan Inst Technol, Inst Thermal Sci & Power Engn, Wuhan 430205, Peoples R China
机构:
Key Laboratory of Thermal Science and Power Engineering of MOE, Department of Energy and Power Engineering, Tsinghua University, Beijing,100084, ChinaKey Laboratory of Thermal Science and Power Engineering of MOE, Department of Energy and Power Engineering, Tsinghua University, Beijing,100084, China
Li, Jian
Duan, Yuan-Yuan
论文数: 0引用数: 0
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机构:
Key Laboratory of Thermal Science and Power Engineering of MOE, Department of Energy and Power Engineering, Tsinghua University, Beijing,100084, ChinaKey Laboratory of Thermal Science and Power Engineering of MOE, Department of Energy and Power Engineering, Tsinghua University, Beijing,100084, China
Duan, Yuan-Yuan
Yang, Zhen
论文数: 0引用数: 0
h-index: 0
机构:
Key Laboratory of Thermal Science and Power Engineering of MOE, Department of Energy and Power Engineering, Tsinghua University, Beijing,100084, ChinaKey Laboratory of Thermal Science and Power Engineering of MOE, Department of Energy and Power Engineering, Tsinghua University, Beijing,100084, China
Yang, Zhen
Ge, Zhong
论文数: 0引用数: 0
h-index: 0
机构:
Key Laboratory of Thermal Science and Power Engineering of MOE, Department of Energy and Power Engineering, Tsinghua University, Beijing,100084, ChinaKey Laboratory of Thermal Science and Power Engineering of MOE, Department of Energy and Power Engineering, Tsinghua University, Beijing,100084, China
Ge, Zhong
[J].
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics,
2019,
40
(07):
: 1458
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1464
机构:
Yantai Univ, Dept Thermal Energy & Power Engn, Yantai 264005, Peoples R ChinaYantai Univ, Dept Thermal Energy & Power Engn, Yantai 264005, Peoples R China
Wang, Mingtao
Zhang, Juan
论文数: 0引用数: 0
h-index: 0
机构:
Yantai Engn & Technol Coll, Yantai 264006, Peoples R ChinaYantai Univ, Dept Thermal Energy & Power Engn, Yantai 264005, Peoples R China
Zhang, Juan
Liu, Huanwei
论文数: 0引用数: 0
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Yantai Univ, Dept Thermal Energy & Power Engn, Yantai 264005, Peoples R ChinaYantai Univ, Dept Thermal Energy & Power Engn, Yantai 264005, Peoples R China