Education background
1997.09-2001.07
Bachelor in Mechanical and Electronic Engineering, Hefei University of Technology
2001.09-2006.07
Ph.D. in Power Plant System and Control, South China University of Technology
Experience
2006.07-2007.12
Lecturer, School of Electric Power, South China University of Technology
2008.01-2010.03
Postdoctoral Researcher, Department of Thermal Engineering, Tsinghua University
2010.08-2011.06
Postdoctoral Researcher, Department of Energy Sciences, Lund University, Sweden
2010.04-2014.11
Assistant Professor, Department of Thermal Engineering, Tsinghua University
2014.12-Present
Associate Professor, Doctoral Supervisor, Department of Energy and Power Engineering, Tsinghua University
Concurrent Academic
Member, Standardization Technical Committee for Small Hydropower Units, Energy Industry
Member, Expert Advisory Committee of the Central Enterprise Advanced Power Equipment Innovation Consortium
Reviewer for International Academic Journals such as Energy, Renewable Energy, Desalination
Executive Editor, Journal of Hydroelectric Engineering
Editorial Member, Journal of Hydraulic Engineering
Areas of Research Interests/ Research Projects
Mechanism of Internal Flow and Performance Optimization for Fluid Machinery
1) Flow Mechanism and Interaction for Pelton Turbines;
2) Hydraulic Optimization Design and Dynamic Characteristics Analysis of Fluid Machinery;
3) Safety and Stability Performance Analysis of Pumped Storage Units;
4) Renewable Energy Recovery and Energy Saving;
5) Development of New Fluid Machinery for Marine Energy;
Research Status
Ongoing Research Projects (Partial)
1. 2024-09-01～2027-08-31, "Study on the Mechanism of Sand-Laden Three-Phase Flow in Pelton Turbines (42461144207)", International (Regional) Cooperation and Exchange Project of NSFC-BRICS (International Organization);
2. 2024-11-16～2026-5-30, Research on Optimization Strategies and Predictive Methods for Wide-Load Stable Operation of Pumped Storage Units in Renewable Energy-Rich Areas, Dongfang Electric Corporation Dongfang Electric Machinery Co., Ltd.;
3. 2023-9-25～2025-6-30, Hydraulic Development Research for High-Head Ternary Pumped Storage Units, China Construction Third Bureau Green Industry Investment Co., Ltd.;
4. 2023-4-1～2024-12-31, Research and Optimization of Hydraulic Performance Parameters for Pump-Turbines, China Institute of Water Resources and Hydropower Research;
5. 2023-01-01～2026-12-31, "Study on the Multi-Flow Regime Transition Mechanism and Hydraulic Optimization of High-Head Pelton Turbines (52279088)", General Program of NSFC;
6. 2022-04-01～2024-12-31, Research on Operational Stability and Powerhouse Structural Adaptability of Variable-Speed Pumped Storage Units, State Grid Ningxia Electric Power Co., Ltd.;
Completed Research Projects (Partial)
1. 2023-04～2024-06-31, Applied Research on Forward-Looking Technologies for High-Head Ternary Pumped Storage Units, State Grid Xinyuan Company;
2. 2021-09-06～2023-09-30, Key Technologies and Equipment Development for Turbine-Type Energy Recovery in Seawater Desalination (ZDYF2021SHFZ057), Hainan University (Key R&D Program of Hainan Province);
3. 2021-6-26～2023-6-25, Multi-Functional Open Hydraulic Machinery Test Bench, Tianjin Institute of Seawater Desalination and Comprehensive Utilization, Ministry of Natural Resources;
4. 2021-2-1～2022-6-30, Hydraulic Scheme Design and Sand Erosion Characteristic Calculation for Pelton Turbines, Dongfang Electric Machinery Co., Ltd.;
5. 2020-4-01～2021-3-31, Optimization and Prototype Development of SK-Type Corrosion-Resistant and Abrasion - Resistant Pulp Pumps, Shangbaoluo Jiangsu Energy-Saving Technology Co., Ltd.;
6. 2018-12-01～2020-09-30, Research on Hydrodynamic Coupling Characteristics of High-Speed Turbine Pumps for Seawater Desalination (18YFZCSF00310), Tianjin Institute of Seawater Desalination and Comprehensive Utilization, National Oceanic Administration/Tianjin Science and Technology Commission (Key R&D Program of Tianjin);
7. 2017-07-01～2020-06-30, Key Technologies and Product Development for Seawater Desalination Pumps and Energy Recovery Integrated Machines (2017YFC0404202), Key R&D Program of the Ministry of Science and Technology, China;
8. 2015.01-2019.12, " Flow Instability Mechanism And The Control In Centrifugal Pumps (51439002)", Key Program of NSFC;
9. 2015.01-2018.12, " Analysis Of Pelton Turbine Flow Interference Characteristic And The Relation With Scale Effect (51479093)", General Program of NSFC.
Honors And Awards
Research Awards
1. Key Technologies and Engineering Applications for Hydraulic Development of Bidirectional Tidal Turbines, First Prize, China Renewable Energy Society Science and Technology Progress Award, 2023 (10/10)
2. Key Energy-Saving Technologies and Applications for Multi-Energy Coupled Reverse Osmosis Seawater Desalination, Second Prize, Hainan Province Science and Technology Award, 2021 (2/8).
3. Design, Manufacturing, and Engineering Demonstration of Three-Blade New Tidal Power Generation Units, Second Prize, Ocean Science and Engineering Innovation Award, 2019. (6/13).
4. Research on Fluid-Structure Interaction Dynamic Characteristics of Hydraulic Machinery Runners, Second Prize, Dayu Water Conservancy Science and Technology Award, 2014. (3/10).
5. Flow Analysis and Optimization Design of Hydraulic Machinery Based on Vortex Dynamics Theory, Second Prize, Ministry of Education Science and Technology Progress Award, 2014. (3/8)
6. Transient Hydraulic Characteristics and Fatigue Life Key Technologies of Bulb Tubular Turbines, Second Prize, Da Yu Water Conservancy Science and Technology Award, 2012 (4/10)
7. Key Technologies for Improving the Operational Stability of Modern Hydropower Systems, Second Prize, Ministry of Education Science and Technology Progress Award, 2012 (12/21)
Teaching and Research Awards
1. Coaxial Portable Shallow River/Tidal Energy Variable-Frequency Hydroelectric Generator, First Prize (Instructor), 17th National College Student Energy-Saving and Emission-Reduction Competition, 2024.8
2. Design and Implementation of an Energy-Saving and Labor-Saving Module for a Handheld Seawater Desalination Device, Second Prize (Instructor), 14th National College Student Energy-Saving and Emission-Reduction Competition, 2021.8
3. Energy Recovery Integrated Machine for Printing and Dyeing Wastewater, Third Prize (Instructor), 14th National College Student Energy-Saving and Emission-Reduction Competition, 2021.8.
4. Hydraulic Design of a Medium-Sized Reverse Osmosis Seawater Desalination Energy Recovery Integrated Machine, First Prize, 13th National College Student Energy-Saving and Emission-Reduction Competition, 2020. (Adviser)
5. Bidirectional Six-Condition Operation Full Tubular Low-Head Hydroelectric Unit, First Prize, 8th National College Student Energy-Saving and Emission-Reduction Competition, 2015. (Adviser)
6. Fundamentals of Fluid Machinery Teaching Software, First Prize, Tsinghua University Excellent Teaching Software Award, 2/3, 2012.
Academic Achievement
Patents and Software Copyrights
> Invention Patents:
A High-Head Pelton Turbine Injector, ZL202010733592.3, 2020 (1/2)
A Multi-Phase Characteristic Test Bench for Pumps and Turbines and Its Testing Method, ZL201810090606.7, 2018 (3/5)
A Six-Condition Three-Blade Runner Bidirectional Tidal Power Turbine, ZL201510570752.6, 2015 (3/3)
> Software Copyrights:
Comprehensive Data Acquisition System for Turbine-Type Energy Recovery Integrated Machine V1.0 (2021SR0367131), 2021
Pelton Turbine Injector Sand Erosion Prediction Software V1.0 (2024SR0137395), 2024
Pelton Turbine Bucket Sand Erosion Prediction Software V1.0 (2024SR0142621), 2024
Pelton Turbine Bucket Surface Parametric Analysis Software V1.0 (2024SR2093989), 2024
>Recent Journal Publications
1. Wang, Shenghui; Xiao, Yexiang; Wang, Chengpeng; Wang, Shenghui; Xiao, Yexiang; Wang, Chengpeng; Li, Yuhai; Ma, Qingfen; Luo, Xianwu. Performance improvement of turbo energy recovery device in desalination using flow field simulation and uniform design experiment. Desalination and Water Treatment. 2025, Vol.321, p.100980.
2. Wang, Chengpeng; Wang, Shenghui; Wang, Kaijie; Xiao, Yexiang; Ma, Qingfen; Song, Daiwang; Wang, Ruihao; Zhang, Yin. Developmental impediment and prospective trends of desalination energy recovery device. DESALINATION. 2024, 578: 117465.
3. Navam Shrivastava, Anant Kumar Rai, Ali Abbas, and Yexiang Xiao. Analysis of hydro-abrasive erosion in a high-head Pelton turbine injector using a Eulerian-Lagrangian approach. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 2024, 238(3): 495-514.
4. Yexiang Xiao, Zishi Liu, Quanwei Liang, Jie Liu, Jin Zhang, Yilin Zhu, Xuesong Li, Chunwei Gu. The interaction between bucket number and performance of a Pelton turbine. Energy. 2024. 287, 129646.
5. Yexiang Xiao, Bao Guo, Anant Kumar Rai, Quanwei Liang, Jie Liu, Jin Zhang. Analysis of hydro-abrasive erosion in Pelton buckets using a Eulerian-Lagrangian approach. Renewable Energy. 2022(197) 472-485. WOS:000879073300005. 5Y1TY
6. Xiao Yexiang, Gui Zhonghua, Li Xuesong, Tao Sijia, Shi Guangtai, Gu Chunwei. Study on Distribution Law of Gas Phase and Cavitation in the Pressurization Unit of Helical Axial Flow Multiphase Pump. Journal of Marine Science and Engineering.2022,10(11): 1795.
7. Xiao Yexiang, Gui Zhonghua, Li Xuesong, Tao Sijia, Shi Guangtai, Gu Chunwei. Numerical Investigation of
Gas-Liquid Flow in a Multiphase Pump with Special Emphasis on the Effect of Tip Leakage Vortex on the Gas Flow Pattern. Journal of Marine Science and Engineering.2022,10(11): 1665.
8. Bao Guo, Yexiang Xiao, Anant Kumar Rai, Quanwei Liang, Jie Liu. Analysis of the air-water-sediment flow behavior in Pelton buckets using a Eulerian-Lagrangian approach. Energy. 2021.218, 119522. SCI: PY2CT, EIP: 20205109662036.
9. Guangtai Shi, Zongku Liu, Yexiang Xiao, Tang Xuelin, Xiaobing Liu. Pressure fluctuation characteristics in the pressurization unit of a multiphase pump. Journal of Hydrodynamics. 2021, 33(6): 1230-1241.
10. Guangtai Shi, Shan Wang, Yexiang Xiao, Zongku Liu, Xiaobing Liu. Effect of cavitation on energy conversion characteristics of a multiphase pump. Renewable Energy. 2021. 177:1308-1320.
11. Xiao Yexiang, Guo Bao, Zhang Jin, Liang Quanwei, Liu Jie. Numerical study on sand-laden three-phase flow and erosion characteristics in Pelton turbines. Hydropower and Pumped Storage. 2021.7(2) :4-10.
12. Liu Zishi, Xiao Yexiang, Wang Chengpeng, Zhu Yilin, Liu Sihan, Cui Yongkang, Yin Xilong. Numerical analysis of hydraulic characteristics of turbine-type energy recovery integrated machines. Journal of Hydroelectric Engineering. 2021, 40(2), 131-140.
13. Bao Guo, Yexiang Xiao, Anant Kumar Rai, Jin Zhang, Quanwei Liang. Sediment-laden flow and erosion modeling in a Pelton turbine injector. Renewable Energy. 2020.162, pp. 30-42. SCI: OT3OY.
14. Anant Kumar Rai, Arun Kumar, Thomas Staubli and Xiao Yexiang. Interpretation and application of the hydro-abrasive erosion model from IEC 62364 (2013) for Pelton turbines. Renewable Energy. 2020, 160: 396-408. SCI: NT4AW.
15. Guangtai Shi, Zongku Liu, Yexiang Xiao, Hong Yang, Helin Li, Xiaobing Liu. Effect of the inlet gas void fraction on the tip leakage vortex in a multiphase pump. Renewable Energy. 2020.150, pp. 46-57. SCI: KT2VU.
16. Guangtai Shi, Zongku Liu, Yexiang Xiao, Helin Li, Xiaobing Liu. Tip leakage vortex trajectory and dynamics in a multiphase pump at off-design condition. Renewable Energy. 2020.150, pp. 703-711.
>Recent Conference Publications
17. Liu Zishi, Liu Jie, Liang Quanwei, Xiao Yexiang, Zhou Yushu, Li Haijun, Liu Zhengshu, Hu Zongqiu and Du Qingpin. Numerical analysis of cavitation characteristics on front surfaces of different Pelton turbine buckets. The 8th International Conference on Pumps and Fans. Apr 11-13, 2024.
18. Liu Zishi, Liang Quanwei, Xiao Yexiang, Liu Jie, Qin Chuan, Zhou Yushu, Li Haijun, and Du Qingpin. Influence of cavitation simulation on Pelton turbine bucket performance. 32nd IAHR Symposium on Hydraulic Machinery and Systems. Sep 11-14, 2024.
19. Tian Qianhe, Min Hongping, Xiao Yexiang, Liu Jie, Wang Xiaodong, Tang Dingding, Zhan De, Lu Zhongxing. Analysis of the pump-turbine cavitation with small guide vane opening on pump mode. 32nd IAHR Symposium on Hydraulic Machinery and Systems. Sep 11-14, 2024.
20. Liu Zishi, Xiao Yexiang, Min Hongping, Liang Quanwei, Liu Jie, Wang Xiaodong, He Qiyuan, Li Haijun. Dynamic stress analysis of a large capacity Pelton turbine runner. IOP Conference Series: Earth and Environmental Science, Volume 627, 4nd IAHR-Asia Symposium on Hydraulic Machinery and Systems, 12-16 August 2023, Kashgar, China. EIP: 20242716615721.
21. Liang Quanwei, Liu Jie, Xiao Yexiang, Zhu Yilin, Zhou Hengte, Deng Haifeng. Numerical analysis of the sand hydro-abrasion of a Pelton turbine injector. IOP Conference Series: Earth and Environmental Science, Volume 627, 4nd IAHR-Asia Symposium on Hydraulic Machinery and Systems 12-16 August 2023, Kashgar, China.
22. Liu Jie, Xiao Yexiang, Liu Zishi, Liang Quanwei, Yang Nianhao, Hu Zongqiu, Du Qingpin. Analysis of the bucket surface cavitation characteristics of a model Pelton turbine. IOP Conference Series: Earth and Environmental Science, Volume 627, 4nd IAHR-Asia Symposium on Hydraulic Machinery and Systems 12-16 August 2023, Kashgar, China. EI: 20242716615723.
23. Zhu Yilin, Liu Jie, Xiao Yexiang, Liang Quanwei, Li Haijun, Du Qingpin, Wang Zhaoning. Numerical method analysis of the multi-nozzle distributor hydraulic performance for a Pelton turbine. IOP Conference Series: Earth and Environmental Science, Volume 627, 4nd IAHR-Asia Symposium on Hydraulic Machinery and
Systems 12-16 August 2023, Kashgar, China.
24. Li Dongkuo, Liu Zishi, Min Hongping, Xiao Yexiang, Gui Zhonghua, Wang Xiaodong, Lin Hao. Technical investigation of the ternary pumped storage hydro units with ultra-high-water head. IOP Conference Series: Earth and Environmental Science, Volume 627, 4nd IAHR-Asia Symposium on Hydraulic Machinery and Systems 12-16 August 2023, Kashgar, China.
25. Gui Zhonghua, Xiao Yexiang, Li Dongkuo, Lin Hao, Xiao Wei, Zhu Yilin. A review of the experimental techniques research progress of the Pelton turbine. IOP Conference Series: Earth and Environmental Science, Volume 627, 4nd IAHR-Asia Symposium on Hydraulic Machinery and Systems 12-16 August 2023, Kashgar, China.
