Design and Thermal-Fluid-Solid Coupling Investigation of Supercritical Carbon Dioxide Radial Inflow Turbine

被引：0

作者：

Zhao P. ^{[1
]}

Wen Y. ^{[1
]}

Lou J. ^{[1
]}

Yang P. ^{[2
]}

Zhou L. ^{[3
]}

Zhang Y. ^{[1
]}

Wang J. ^{[1
]}

机构：

[1] School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an

[2] Xi'an Xire Boiler & Environmental Protection Engineering Co. Ltd., Xi'an

[3] Guoneng Changyuan Hanchuan Power Generation Co. Ltd., Hubei, Xiaogan

来源：

Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2022年 / 56卷 / 11期

关键词：

radial inflow turbine; supercritical carbon dioxide; thermal-fluid-solid coupling method;

D O I：

10.7652/xjtuxb202211009

中图分类号：

学科分类号：

摘要：

In this paper, a 1 MW supercritical carbon dioxide(SCO2)radial inflow turbine is designed to meet the requirement of a MW-class SCO2 Brayton cycle system. The three-dimensional numerical simulation is carried out by RANS(Reynolds-averaged Navier-Stokes)equations. The off-design performance of the turbine is analyzed and the influence of the tip clearance on the efficiency is also investigated. The operation safety of the turbine impeller is analyzed with the thermal-fluid-structure coupling method. Based on the numerical simulation results and actual operating conditions of the turbine impeller, the corresponding thermal load and aerodynamic load were applied in this process. The axial force caused by the leakage flow at the backface cavity of impeller is also considered. The results show that the isentropic efficiency and the output power of turbine under design conditions are 83.53% and 1 188.57 kW, respectively. The SCO2 turbine exhibits good off-design performance. The maximum total deformation of the turbine impeller made of titanium alloy TC4 is 0.570 mm while the maximum axial deformation is 0.303 mm. The stress of the impeller is far smaller than the material yield strength. The research results can provide basic data and theoretical support for the turbine design of MW-class SCO2 Brayton cycle system. © 2022 Xi'an Jiaotong University. All rights reserved.

引用

页码：83 / 94

页数：11

共 23 条

[1] KIMBALL K J, CLEMENTONI E M., Supercritical carbon dioxide Brayton power cycle development overview, ASME Turbo Expo 2012: Turbine Technical Conference and Exposition, pp. 931-940, (2012)
[2] AHN Y, BAE S J, KIM M, Et al., Review of supercritical CO2 power cycle technology and current status of research and development, Nuclear Engineering and Technology, 47, 6, pp. 647-661, (2015)
[3] DENG Qinghua, HU Lehao, LI Jun, Et al., State-of-art and challenge on technologies of supercritical carbon dioxide electric power generation, Thermal Turbine, 48, 3, pp. 159-165, (2019)
[4] FENG Zhenping, ZHAO Hang, ZHANG Hanzhen, Et al., Research progress on supercritical carbon dioxide power cycle system and its power unit, Thermal Turbine, 45, 2, pp. 85-94, (2016)
[5] UTAMURA M, HASUIKE H, OGAWA K, Et al., Demonstration of supercritical CO2 closed regenerative Brayton cycle in a bench scale experiment, ASME Turbo Expo 2012: Turbine Technical Conference and Exposition, pp. 155-164, (2012)
[6] IVERSON B D, CONBOY T M, PASCH J J, Et al., Supercritical CO2 Brayton cycles for solar-thermal energy, Applied Energy, 111, pp. 957-970, (2013)
[7] MOORE J, BRUN K, EVANS N, Et al., Development of 1 MWe supercritical CO2 test loop, ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, (2015)
[8] CHOI B, CHO J, SHIN H, Et al., Development of a hundreds of kWe-class supercritical carbon dioxide power cycle test loop in KIER, ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition, (2019)
[9] HAN Wanlong, FENG Zhenping, WANG Yueming, Et al., Aerodynamic design and performance of SCO2 high pressure turbines, Journal of Harbin Institute of Technology, 50, 7, pp. 192-198, (2018)
[10] LEE J, LEE J I, YOON H J, Et al., Supercritical carbon dioxide turbomachinery design for water-cooled small modular reactor application, Nuclear Engineering and Design, 270, pp. 76-89, (2014)

← 1 2 3 →