Investigation on the internal flow in a boiler-feeding-water pump powered by a gas-turbine

doi:10.1109/ICMREE.2013.6893786

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	Investigation on the internal flow in a boiler-feeding-water pump powered by a gas-turbine
	Yang, Congxin; Ma, Yuntong
	2013
会议名称	2013 International Conference on Materials for Renewable Energy and Environment, ICMREE 2013
会议录名称	ICMREE 2013 - Proceedings: 2013 International Conference on Materials for Renewable Energy and Environment
卷号	3
页码	759-762
会议日期	August 19, 2013 - August 21, 2013
会议地点	Chengdou, China
出版者	Institute of Electrical and Electronics Engineers Inc.
摘要	Calculation and analysis on the internal flow in a boiler-feeding-water pump powered by a gas-turbine used in the supercritical unit in a power plant was carried out using the computational fluid dynamics (CFD) approach by means of a parallel computer. The results show, compared with the internal flow in a single-stage centrifugal pump, that some special phenomena are found in the flow channels in the boiler-feeding-water pump, the internal flow in the pump is complicated with obvious flow characteristics. There is large variation of the pressure in the near-wall zones of the internal case compared with that of the external one; The pressure distribution is clearly asymmetrical in the flow channel between the cases, which enlarges the force of the cases; The high pressure and velocity regions with large area found near the exit of the impeller in the flow passages in the ones; The vortex flow exists in the suction chambers from the first stage to the sixth one. These features will provide the evidence for the improvement of the pump, which will improve the efficiency of the unit, furthermore, it can optimize the utilization of coal in the supercritical unit in a power plant. © 2013 IEEE.
关键词	Boilers Channel flow Feeding Gas turbines Hydraulic turbines Power plants Pressure distribution Pumps Renewable energy resources Vortex flow Clean coal technologies Flow channels Flow charac-teristics Internal flows Parallel computer Single-stage centrifugal pumps Supercritical units Water pump
DOI	10.1109/ICMREE.2013.6893786
收录类别	EI
语种	英语
EI入藏号	20144500168430
EI主题词	Computational fluid dynamics
来源库	Compendex
分类代码	525.1 Energy Resources and Renewable Energy Issues - 612.3 Gas Turbines and Engines - 614 Steam Power Plants - 617.1 Hydraulic Turbines - 618.2 Pumps - 631.1 Fluid Flow, General - 691.2 Materials Handling Methods - 931.1 Mechanics
引用统计	无
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/117579
专题	新能源学院能源与动力工程学院
作者单位	School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu, China
第一作者单位	新能源学院
推荐引用方式 GB/T 7714	Yang, Congxin,Ma, Yuntong. Investigation on the internal flow in a boiler-feeding-water pump powered by a gas-turbine[C]:Institute of Electrical and Electronics Engineers Inc.,2013:759-762.