Search Results - "Wei, XianZhu"

Entropy production analysis of hysteresis characteristic of a pump-turbine model by Li, Deyou, Wang, Hongjie, Qin, Yonglin, Han, Lei, Wei, Xianzhu, Qin, Daqing

“…•An interesting hysteresis phenomenon was analyzed using entropy production theory.•A function was used to calculate the entropy production in the wall…”
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Unsteady simulation and analysis for hump characteristics of a pump turbine model by Deyou, Li, Hongjie, Wang, Gaoming, Xiang, Ruzhi, Gong, Xianzhu, Wei, Zhansheng, Liu

“…Presently, hydropower is the world's largest source of renewable energy. Pump Storage Power Plant develops the rapidly because of its effective electricity…”
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Optimization of Setting Angle Distribution to Suppress Hump Characteristic in Pump Turbine by Qin, Yonglin, Li, Deyou, Wang, Hongjie, Wei, Xianzhu

“…Pump turbines play a quite important role of peak-valley shifting in the grid, and the hump margin is a critical criterion related to the safety and stability…”
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Direct measurement of electrocaloric effect in lead-free Ba(SnxTi1-x)O3 ceramics by Sanlialp, Mehmet, Luo, Zhengdong, Shvartsman, Vladimir V., Wei, Xianzhu, Liu, Yang, Dkhil, Brahim, Lupascu, Doru C.

“…In this study, we report on investigation of the electrocaloric (EC) effect in lead-free Ba(SnxTi1-x)O3 (BSnT) ceramics with compositions in the range of 0.08…”
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Entropy Production Analysis for Hump Characteristics of a Pump Turbine Model by Li, Deyou, Gong, Ruzhi, Wang, Hongjie, Xiang, Gaoming, Wei, Xianzhu, Qin, Daqing

“…The hump characteristic is one of the main problems for the stable operation of pump turbines in pump mode.However,traditional methods cannot reflect directly…”
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Application of entropy production theory to hydro-turbine hydraulic analysis by Gong, RuZhi, Wang, HongJie, Chen, LiXia, Li, DeYou, Zhang, HaoChun, Wei, XianZhu

“…The understanding of hydraulic behavior in the hydro turbine requires the detailed study of fluid flow in the turbine. Previous methods of analyzing the…”
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Dynamic characteristics of a running away pump-turbine with large head variation: 1D + 3D coupled simulation by Fu, Xiaolong, Li, Deyou, Song, Yechen, Wang, Hongjie, Yang, Jialiang, Wei, Xianzhu

“…The dynamic characteristics of running away pump turbines (PTs) with a large head variable amplitude have not been understood thus far, primarily because of…”
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Analysis of transient flow in a pump-turbine during the load rejection process by Fu, Xiaolong, Li, Deyou, Wang, Hongjie, Zhang, Guanghui, Li, Zhenggui, Wei, Xianzhu

“…The transient flow in pump-turbines during the load rejection process is very complex. However, few studies have been conducted on three-dimensional (3-D)…”
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Investigations on Pressure Fluctuations in the S-Shaped Region of a Pump–Turbine by Wang, Hongjie, Wang, Jianpeng, Gong, Ruzhi, Shang, Chaoying, Li, Deyou, Wei, Xianzhu

“…Hydraulic pumped storage is a special power generation and electricity shortage technology, which is usually operated with thermal power and nuclear power…”
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Flow excitation mechanisms of unbalanced impeller forces after pump power-trip of ultra-high head pump-turbines by Fu, XiaoLong, Li, DeYou, Lv, JingWei, Yang, Biao, Wang, HongJie, Wei, XianZhu

“…To elucidate the dynamic mechanisms of unbalanced impellers in ultra-high head pump-turbines (PTs), this study employed a one- and three-dimensional coupled…”
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High-amplitude pressure fluctuations of a pump-turbine with large head variable ratio during the turbine load rejection process by Fu, XiaoLong, Li, DeYou, Song, YeChen, Wang, HongJie, Wei, XianZhu

“…Large-head variable-amplitude pump turbines (PTs) encounter serious transient hydraulic instability issues. To explore the evolution mechanisms of pressure…”
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Runner cone optimization to reduce vortex rope-induced pressure fluctuations in a Francis turbine by Li, DeYou, Yu, Liang, Yan, XuYu, Wang, HongJie, Shi, Qian, Wei, XianZhu

“…Pressure fluctuations induced by a vortex rope are the major causes of hydraulic turbine vibration in partial load operating conditions. Hence, an effective…”
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Experimental Study of the Effect of Splitter Blades on the Performance Characteristics of Francis Turbines by Jia, Yun, Wei, Xianzhu, Wang, Qianyun, Cui, Jinsheng, Li, Fengchen

“…With the improvement in energy structures, the safe and stable operation of hydropower units is becoming the most important issue for electric grids. To expand…”
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Analysis of flow energy dissipation of a two‐stage storage pump based on entropy generation theory by Chen, Taiping, Wei, Xianzhu, Bie, Rushan, Li, Yang, Xu, Bin, Wang, Wenbo, Liu, Yongxin

“…A hybrid power station comprising storage pump units and conventional hydropower components holds the potential to enhance the operational flexibility of basin…”
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Investigation of the unstable flow phenomenon in a pump turbine by Yin, JunLian, Wang, DeZhong, Walters, D. Keith, Wei, XianZhu

“…Instability of pump turbine with S-shaped curve is characterized by large fluctuations of rotational speed during the transient processes. For investigating…”
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Analysis of vorticity dynamics for hump characteristics of a pump turbine model by Li, Deyou, Gong, Ruzhi, Wang, Hongjie, Han, Lei, Wei, Xianzhu, Qin, Daqing

“…Conventional parameters based on CFD methodology for the investigation on hump characteristics of a pump turbine cannot reflect the dynamic interaction…”
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Dynamic instability of a pump-turbine in load rejection transient process by Fu, XiaoLong, Li, DeYou, Wang, HongJie, Zhang, GuangHui, Li, ZhengGui, Wei, XianZhu

“…Load rejection is one of the most crucial transient processes in pump-turbines. However, only a few achievements on the internal flow mechanism of…”
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Dynamic analysis on pressure fluctuation in vaneless region of a pump turbine by Li, DeYou, Gong, RuZhi, Wang, HongJie, Xiang, GaoMing, Wei, XianZhu, Liu, ZhanSheng

“…As the pump turbine tends to be operated with high head and high rotational speed, the study of stability problems becomes more important. The pump turbine…”
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Pressure fluctuation propagation of a pump turbine at pump mode under low head condition by Guo, Lei, Liu, JinTao, Wang, LeQin, Qin, DaQing, Wei, XianZhu

“…Pressure fluctuation at the vaneless space and vanes passages is one of the most important problems for the stable operation of a pump turbine. The fluctuation…”
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Investigation on reversible pump turbine flow structures and associated pressure field characteristics under different guide vane openings by Binama, Maxime, Su, WenTao, Cai, WeiHua, Li, FengChen, Wei, XianZhu, Muhirwa, Alex, Gong, RuZhi, Wekesa, David W.

“…The use of reversible pump turbines (RPT) within pumped storage power plants goes with prolonged periods of off-design operating conditions, which leads to the…”
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