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Simulation of Underground Reservoir Stability of Pumped Storage Power Station Based on Fluid-Structure Coupling
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作者 Peng Qiao Shuangshuang Lan +1 位作者 Hongbiao Gu Zhengtan Mao 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第5期1381-1399,共19页
Based on global initiatives such as the clean energy transition and the development of renewable energy,the pumped storage power station has become a new and significant way of energy storage and regulation,and its co... Based on global initiatives such as the clean energy transition and the development of renewable energy,the pumped storage power station has become a new and significant way of energy storage and regulation,and its construction environment is more complex than that of a traditional reservoir.In particular,the stability of the rock strata in the underground reservoirs is affected by the seepage pressure and rock stress,which presents some challenges in achieving engineering safety and stability.Using the advantages of the numerical simulation method in dealing deal with nonlinear problems in engineering stability,in this study,the stability of the underground reservoir of the Shidangshan(SDS)pumped storage power station was numerically calculated and quantitatively analyzed based on fluid-structure coupling theory,providing an important reference for the safe operation and management of the underground reservoir.First,using the COMSOL software,a suitablemechanicalmodel was created in accordance with the geological structure and project characteristics of the underground reservoir.Next,the characteristics of the stress field,displacement field,and seepage field after excavation of the underground reservoir were simulated in light of the seepage effect of groundwater on the nearby rock of the underground reservoir.Finally,based on the construction specifications and Molar-Coulomb criterion,a thorough evaluation of the stability of the underground reservoir was performed through simulation of the filling and discharge conditions and anti-seepage strengthening measures.The findings demonstrate that the numerical simulation results have a certain level of reliability and are in accordance with the stress measured in the project area.The underground reservoir excavation resulted in a maximum displacement value of the rock mass around the caverns of 3.56 mm in a typical section,and the safety coefficient of the parts,as determined using the Molar-Coulomb criterion,was higher than 1,indicating that the project as a whole is in a stable state. 展开更多
关键词 Underground reservoir fluid-structure coupling numerical simulation pumped storage power station filling and discharge
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Design of the Pumping Stations and the Gas Puffing Systems for the Superconducting Tokamak HT-7U
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作者 辜学茂 王小明 +5 位作者 秦品建 杨道文 胡建生 罗南昌 李生发 李高云 《Plasma Science and Technology》 SCIE EI CAS CSCD 2000年第6期557-563,共7页
The design of the pumping stations and the gas injection systems for the inner Chamber and the cryostat on HT-7U superconducting tokamak is described in this paper.
关键词 Design of the pumping stations and the Gas Puffing Systems for the Superconducting Tokamak HT-7U HT
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Design and Operation of Municipal Rain and Sewage United Pumping Station
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作者 Ting Ting Liu 《Journal of Architectural Research and Development》 2023年第4期51-56,共6页
In the process of designing a municipal rainwater and sewage pumping station,it is necessary to accurately grasp the design points,reasonably determine the scale of the rainwater and sewage pumping station,scientifica... In the process of designing a municipal rainwater and sewage pumping station,it is necessary to accurately grasp the design points,reasonably determine the scale of the rainwater and sewage pumping station,scientifically select the location and layout,and select materials reasonably.After completing the process design of the municipal rainwater and sewage pumping station and putting it into operation,in order to ensure the normal and stable operation of the pumping station,it is necessary to focus on strengthening the operation and management of diving equipment,cleaning equipment,and electromechanical equipment.The author analyzes the key points and specific design path of the process design of municipal rainwater and sewage pumping stations,and puts forward effective strategies for operation management,hoping to contribute to the scientific design and stable operation of municipal rainwater and sewage pumping stations. 展开更多
关键词 Municipal administration Rainwater and sewage united pumping stations Design path Operation management
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Optimal Operation for Baoying Pumping Station in East Route Project of South-to-North Water Transfer 被引量:7
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作者 FENG Xiaoli QIU Baoyun +2 位作者 CAO Haihong WEI Qianglin TENG Haibo 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2009年第1期78-83,共6页
Baoying pumping station is a part of source pumping stations in East Route Project of South-to-North Water Transfer in China. Aiming at the characteristics of head varying, and making use of the function of pump adjus... Baoying pumping station is a part of source pumping stations in East Route Project of South-to-North Water Transfer in China. Aiming at the characteristics of head varying, and making use of the function of pump adjustable blade, mathematical models of pumping station optimal operation are established and solved with genetic algorithm. For different total pumping discharge and total pumping volume of water per day, in order to minimize pumping station operation cost, the number and operation duties of running pump units are respectively determined at different periods of time in a day. The results indicate that the saving of electrical cost is significantly effected by the schemes of adjusting blade angles and time-varying electrical price when pumping certain water volume of water per day, and compared with conventional operation schemes (namely, the schemes of pumping station operation at design blade angles based on certain pumping discharge), the electrical cost is saved by 4.73%-31.27%. Also, compared with the electrical cost of conventional operation schemes, the electrical cost is saved by 2.03%-5.79% by the schemes of adjusting blade angles when pumping certain discharge. 展开更多
关键词 South-to-North Water Transfer Baoying pumping station optimal operation adjusting blade angle time-varying electrical price
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Development and Application of a Shaft-type Tubular Pumping System with a Siphon Discharge Passage 被引量:7
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作者 ZHANG Ren-tian ZHU Hong-geng DAI Long-yang 《南水北调与水利科技》 CAS CSCD 北大核心 2013年第1期J0001-J0006,共6页
Based on the characteristics of large flow rate , low head , short annual operation time , and high reliability of the city flood-control pumping stations , a new-type shaft tubular pumping system featuring a shaft su... Based on the characteristics of large flow rate , low head , short annual operation time , and high reliability of the city flood-control pumping stations , a new-type shaft tubular pumping system featuring a shaft suction box and a siphon-type discharge passage with a vacuum breaker as the cutoff device was developed , which possesses such advantages as simple structure , reliable cutoff , and high energy performance.Taking some pumping stations as the case studies , in the light of the specified operation conditions , the hydraulic optimal design of the shaft-type tubular pumping system was determined and the optimized shape of the system was recommended.The performance prediction based on the computational fluid dynamics methodology was determined and the model test verification was conducted.The results show that the predicted data agree with the experimental head and efficiency so that both methods can be used to determine the performance of a real pumping station.Finally , the in-situ measurements of a pumping station during the commissioning period further verified that the shaft-type tubular pumping station with a siphon discharge passage is of higher efficiency , more reliable and stable. 展开更多
关键词 shaft-type tubular pumping station siphon discharge passage development application hydraulic optimal design model test
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STUDY ON POWER SPARE COEFFICIENT OF ELECTRICAL MOTOR IN LARGE PUMP STATION BASED ON RELIABILITY 被引量:1
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作者 QiuBaoyun HuangJiyan YuanShouqi 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2004年第4期498-501,共4页
Characters of head of low head pump station and the pump shaft power areanalyzed. Influence of each single factor on pump shaft power is expressed as change of specificshaft power. (non-dimensional) and the probabilit... Characters of head of low head pump station and the pump shaft power areanalyzed. Influence of each single factor on pump shaft power is expressed as change of specificshaft power. (non-dimensional) and the probability density function is determined. Influences ofmultiple factors on pump shaft power are analyzed. Method of calculating none over-loadedprobability of motor by integration by successive reductions is put forward and then relationbetween power spare coefficient and none over-loaded reliability of electric motor is established.Influences of all factors on pump shaft power being considered completely; power spare coefficientsof motor are calculated in three kinds of heads (changing and unchanging), two kinds of dirty-outconditions. Electrical motor power spare coefficients should be chosen as 1.20 approx 1.44, 1.11approx 1.19, 1.09 approx.14 respectively when pump heads are 4, 7, 9.5 m. The results mean much toreasonable choose of electrical motors in large pump stations, increasing reliability of pump unitsand saving equipment investment. 展开更多
关键词 Large pump station Electrical motor Power spare coefficient Probability ofnone over-loaded
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Three-dimensional CFD simulation of inlet structure flow in pumping station based on Eulerian solid- liquid two-phase flow model
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作者 Mi Zihao Zhou Daqing Mao Yuanting 《排灌机械工程学报》 EI CSCD 北大核心 2015年第6期494-498,共5页
Sediment deposition in the pumping station has a huge negative impact on unit operation.The three-dimensional CFD method has been used to simulate inlet structure flow in pumping station based on the Eulerian solid- l... Sediment deposition in the pumping station has a huge negative impact on unit operation.The three-dimensional CFD method has been used to simulate inlet structure flow in pumping station based on the Eulerian solid- liquid two-phase flow model. The numerical results of the preliminary scheme show that sediment deposition occurs in the forebay of pumping station because of poor flow pattern therein. In order to improve hydraulic configuration in the forebay,one modified measure reconstructs water diversion weir shape,and another measure sets a water retaining sill in the approach channel. The simulation results of the modified scheme prove that back flow in the forebay has been eliminated and the sediment deposition region has also been reduced. 展开更多
关键词 pumping station FOREBAY sediment deposition Eulerian two-phase flow model
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A large size pumped storage hydropower station wasstarted to construct in Jiangsu Province
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《Electricity》 2001年第4期51-51,共1页
关键词 A large size pumped storage hydropower station wasstarted to construct in Jiangsu Province
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HYDRAULIC CALCULATION AND MEASUREMENT OF FLOW FIELD WITHIN INLET PASSAGE OF LARGE PUMPING STATION
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作者 Guan Xingfan Chen Hongxun +1 位作者 Xie Darong Guo Nailong(Jiangsu University of Science and Technology) 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 1995年第1期15-21,共17页
By means of the analysis of the internal flow within inlet passage of large pumping sta-tion, an analysis of 3-D direct boundary element for the flow has been presented on the potentialflow assumption, and a calculati... By means of the analysis of the internal flow within inlet passage of large pumping sta-tion, an analysis of 3-D direct boundary element for the flow has been presented on the potentialflow assumption, and a calculation and an experimental proof for the inlet passage of 30 angle-type axial pumping station have been made. Based on the analysis of the calculations and theexperiments, the calculation method is feasible and believable. 展开更多
关键词 Large pumping station Inlet passage Internal flow
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Effect of spatial pattern on nutrient reduction in the Liaohe Delta 被引量:2
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作者 LI Xiu-zhen, XIAO Du-ning, HU Yuan-man, WANG Xian-li (Institute of Applied Ecology, CAS, Shenyang 110016, China) 《Journal of Geographical Sciences》 SCIE CSCD 2001年第3期336-349,共14页
The effect of spatial pattern on the nutrient reduction is investigated based on the spatial simulation model developed for the study area of the Liaohe Delta, China. Four scenarios are designed to test the effect of ... The effect of spatial pattern on the nutrient reduction is investigated based on the spatial simulation model developed for the study area of the Liaohe Delta, China. Four scenarios are designed to test the effect of different landscape components on the nutrient reduction in the reed marsh: Canal density, reed area size, reed area shrinking pattern, and pumping station position. Based on a spatial model designed for the study area, the nutrient reduction in each case of these scenarios is simulated. The results indicate that each factor brings less than 10% change in the total nutrient reduction rate. More canals will not help much to improve nutrient reduction. Smaller areas are more efficient than larger ones. The shrinkage pattern is better than others in keeping a higher nutrient reduction rate. It is also more efficient to keep the pumping station near the border of the area to be irrigated. These conclusions provide theoretical supports to strategy makers for local land use planning, and contribute to the understanding of the relationship between landscape patterns and functions. 展开更多
关键词 pattern effect nutrient reduction WETLAND canal density area size shrinking pattern pumping station position
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NUMERICAL SIMULATION OF 3-D TURBULENT FLOW IN THE MULTI-INTAKES SUMP OF THE PUMP STATION 被引量:18
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作者 CHEN Hong-xun SHEN Xin-rong 《Journal of Hydrodynamics》 SCIE EI CSCD 2007年第1期42-47,共6页
In this article, a numerical model forthree-dimensional turbulent flow in the sump of the pumpstation was presented. A reasonable boundary condition for the flow in the sump with several water intakes at different flo... In this article, a numerical model forthree-dimensional turbulent flow in the sump of the pumpstation was presented. A reasonable boundary condition for the flow in the sump with several water intakes at different flowrates was proposed. The finite volume method was employed tosolve the governing equations with the body fitted gridgenerated by the multi-block grid technique. By using theFluent software, the fluid flow in a model sump of the pumpstation was calculated. Compared with the experimental result,the numerical result of the example is fairly good. 展开更多
关键词 pumping station SUMP suction pipe turbulentmodel numerical simulation
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BASIC FLOW PATTERNS AND OPTIMUM HYDRAULIC DESIGN OF A SUCTION BOX OF PUMPING STATION 被引量:6
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作者 Lu Lin guang Yangzhou University, Yangzhou 225009, P.R.China (Received April 14, 2000) 《Journal of Hydrodynamics》 SCIE EI CSCD 2000年第4期46-51,共6页
A numerical method based on 3 D turbulence flow was applied to simulate the flow pattern in suction boxes of six different types. In light of the computational results, the basic flow patterns in the boxes were revea... A numerical method based on 3 D turbulence flow was applied to simulate the flow pattern in suction boxes of six different types. In light of the computational results, the basic flow patterns in the boxes were revealed and a theoretical method to optimize hydraulically design of the suction box is developed. The box geometrical parameters, which influence the flow pattern in the box, could be optimized. The optimum criteria for the hydraulic design of the suction boxes of six types established, respectively. Furthermore, a summarization is given here based on the classification of the basic flow patterns in order to systematically understand the hydraulic design of suction boxes. 展开更多
关键词 flow pattern optimum design suction box pumping station
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