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
会议日期	August 19, 2013 - August 21, 2013
会议地点	Chengdou, China
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
卷号	3
DOI	10.1109/ICMREE.2013.6893786
页码	759-762
英文摘要	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.
会议录	ICMREE 2013 - Proceedings: 2013 International Conference on Materials for Renewable Energy and Environment
会议录出版者	Institute of Electrical and Electronics Engineers Inc.
语种	英语
内容类型	会议论文
源URL	[http://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
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]. 见:. Chengdou, China. August 19, 2013 - August 21, 2013.