Optimal design and flow loss reduction mechanism of bowed guide vane in a CAES axial flow turbine

doi:10.19799/j.cnki.2095-4239.2021.0338

Abstract

Abstract:

Axial-flow turbines adopted in compressed-air energy storage (CAES) systems are characterized by higher operating pressure, vane with lower aspect ratio, and obvious end-wall secondary flow loss. To increase the efficiency, herein, bowed design is introduced into the vane, and the system is optimized. Moreover, the flow-loss control mechanism of optimal bowed vanes is investigated. The results show an optimal bending angle for maximum isentropic efficiency under each bending height. With an increase in the bending height, the optimal bending angle gradually decreases. The mass flow rate of the axial-flow turbine decreases first and then increases with an increase in the bending angle; a minimum mass flow rate is observed close to the bending angle of 7°. The optimal design results show that when the bending angle and relative bending height are 12.26° and 0.31°, respectively, the isentropic efficiency can be increased by 0.77%, and the mass flow rate increases by only 0.1 kg/s. Although the optimal bowed structure has some negative effects on its own flow field in the vane, it still reduces the inlet flow angle of the rotor blade near the hub, eliminates the stagnation saddle point in front of the rotor-blade leading edge, and limits the influence range of horseshoe vortex and interaction with the end-wall secondary flow. Moreover, the saddle point in the tip leading-edge region moves downstream; limits the influence range of the horseshoe vortex near the suction surface; delays the generation of tip clearance leakage flow, which interacts with the tip clearance upper-passage vortex; and flow loss is reduced.

Key words: compressed air energy storage, axial turbine, bowed stator, optimiztion, flow mechanism

CLC Number:

TK 14

Xing WANG, Wen LI, Yangli ZHU, Zhitao ZUO, Haisheng CHEN. Optimal design and flow loss reduction mechanism of bowed guide vane in a CAES axial flow turbine[J]. Energy Storage Science and Technology, 2021, 10(5): 1524-1535.

Figures/Tables 1

References 25

1	PALIZBAN O, KAUHANIEMI K. Energy storage systems in modern grids—Matrix of technologies and applications[J]. Journal of Energy Storage, 2016, 6: 248-259.
2	HAI A A, AOKAL K, ABED J, et al. Low pressure, modular compressed air energy storage (CAES) system for wind energy storage applications[J]. Renewable Energy, 2017, 106: 201-211.
3	SAFAEI H, KEITH D W, HUGO R J. Compressed air energy storage (CAES) with compressors distributed at heat loads to enable waste heat utilization[J]. Applied Energy, 2013, 103: 165-179.
4	CHEN S, ZHU T, GAN Z X, et al. Optimization of operation strategies for a combined cooling, heating and power system based on adiabatic compressed air energy storage[J]. Journal of Thermal Science, 2020, 29(5): 1135-1148.
5	王晓露, 郭欢, 张华良, 等. 火电厂热电联产机组与压缩空气储能集成系统能量耦合特性分析[J]. 储能科学与技术, 2021, 10(2): 598-610.WANG X L, GUO H, ZHANG H L, et al. Analysis of energy coupling characteristics between cogeneration units and compressed air energy storage integrated systems in thermal power plants[J]. Energy Storage Science and Technology, 2021, 10(2): 598-610.
6	GUO H, XU Y J, CHEN H S. Thermodynamic analytical solution and exergy analysis for supercritical compressed air energy storage system[J]. Applied Energy, 2017, 199: 96-106.
7	ZHAO Z Y, DU X, WEN F B, et al. Investigation of 3D blade design on flow field and performance of a low pressure turbine stage[C]//Proceedings of ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, ASME, 2017.
8	韩俊, 温风波, 赵广播. 小展弦比涡轮叶片的弯曲优化设计[J]. 清华大学学报(自然科学版), 2014, 54(1): 102-108.HAN J, WEN F B, ZHAO G B. Curve optimization design of a turbine blade withlow aspect ratio[J]. Journal of Tsinghua University (Science and Technology), 2014, 54(1): 102-108.
9	陈雷, 陈江. 级环境下弯叶片对涡轮气动性能影响数值研究[J]. 航空动力学报, 2011, 26(12): 2765-2771.CHEN L, CHEN J. Numerical investigation on the effect of bowed blade to aerodynamic performance of low pressure turbine under stage condition[J]. Journal of Aerospace Power, 2011, 26(12): 2765-2771.
10	隋秀明, 董甜甜, 周庆晖, 等. 高负荷低展弦比氦涡轮端壁损失机理研究[J]. 推进技术, 2021, 42(3): 540-549.SUI X M, DONG T T, ZHOU Q H, et al. Investigation on endwall loss mechanism of a highly loaded helium turbine with low aspect ratio[J]. Journal of Propulsion Technology, 2021, 42(3): 540-549.
11	YAO H, ZHOU X, WANG Z Q. Using a bowed blade to improve the supersonic flow performance in the nozzle of a supersonic industrial steam turbine[J]. ASME Journal of Engineering for Gas Turbines and Power, 2017, 139: doi: 10.1115/1.4036495.
12	ZHANG H X, CHEN S W, GONG Y. Combined application of negative bowed blades and unsteady pulsed holed suction in a high-load compressor in terms of aerodynamic performance and energy efficiency[J]. Applied Thermal Engineering, 2018, 144: 291-304.
13	GUO Z D, BU H Y, SONG L M. Experimental test of a 3D parameterized vane cascade with non-axisymmetric endwall[J]. Aerospace Science and Technology, 2019, 85: 429-442.
14	杨彤, 王松涛, 姜斌. 弯曲叶片造型对涡轮叶栅作用力影响的非定常数值研究[J]. 推进技术, 2013, 34(6): 760-767.YANG T, WANG S T, JIANG B. Unsteady numerical study of effects on turbine blade forces for the bowed blade[J]. Journal of Propulsion Technology, 2013, 34(6): 760-767.
15	刘建, 乔渭阳, 段文华. 倾斜/弯曲导叶对跨声速涡轮非定常性能的影响[J]. 哈尔滨工业大学学报, 2019, 51(1): 94-101.LIU J, QIAO W Y, DUAN W H. Effect of lean/bowed vane on the unsteady performance of transonic turbine[J]. Journal of Harbin Institute of Technology, 2019, 51(1): 94-101.
16	TAN C Q, YAMAMOTO A, CHEN H S, et al. Flowfield and aerodynamic performance of a turbine stator cascade with bowed blades[J]. AIAA Journal, 2004, 42(10): 2170-2171.
17	谢婕, 夏晨, 张远森, 等. 低展弦比微型轴流涡轮弯叶片设计[J]. 南京航空航天大学学报, 2015, 47(1): 160-166.XIE J, XIA C, ZHANG Y S, et al. Micro axial turbine bowed blade design at low aspect radio[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2015, 47(1): 160-166.
18	WALRAEVENS R, GALLUS H, JUNG A, et al. Experimental and computational study of the unsteady flow in a 1.5 stage axial turbine emphasis on the secondary flow in the second stator[C]//International Gas Turbine & Aeroengine Congress & Exhibition. ASME, 1998.
19	YAO J X, JAMESON A, ALONSO J J, et al. Development and validation of a massively parallel flow solver for turbomachinery flows[J]. Journal of Propulsion and Power, 2001, 17(3): 659-668.
20	BEN S M, ROUSTANT O, GAMBOA F, et al. Universal prediction distribution for surrogate models[J]. SIAM/ASA Journal on Uncertainty Quantification, 2017, 5(1): 1086-1109.
21	SHIEH T H. Aerothermodynamic effects and modeling of the tangential curvature of guide vanes in an axial turbine stage[J]. International Journal of Rotating Machinery, 2017, 2017: doi: 10.1155/2017/3806356.
22	姚宏, 周逊, 王仲奇. 弯叶片对超声速流动的影响[J]. 西安交通大学学报, 2016, 50(9): 66-73.YAO H, ZHOU X, WANG Z Q. Effects of bowed blade design on supersonic flow[J]. Journal of Xi'an Jiaotong University, 2016, 50(9): 66-73.
23	张晓辉, 陈绍文, 李燕飞. 基于弯曲叶片的燃气涡轮导叶数值研究[J]. 推进技术, 2016, 37(3): 443-448.ZHANG X H, CHEN S W, LI Y F. Numerical investigation for curved guide vane in gas turbine[J]. Journal of Propulsion Technology, 2016, 37(3): 443-448.
24	陈雷, 陈江. 级环境下弯叶片对涡轮气动性能影响数值研究[J].航空动力学报, 2011, 26(12): 2765-2771.CHEN L, CHEN J. Numerical investigation on the effect of bowed blade to aerodynamic performance of low pressure turbine under stage condition[J]. Journal of Aerospace Power, 2011, 26(12): 2765-2771.
25	潘贤德, 陈铁锋. 高压涡轮导叶弯曲对气动性能及动叶激振力的影响[J]. 装备制造技术, 2018(2): 17-22, 62.PAN X D, CHEN T F. The effect of bowed vanes on high pressure turbine aerodynamic performance and blade vibration[J]. Equipment Manufacturing Technology, 2018(2): 17-22, 62.

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