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Modeling and calculation of electromagnetic field in the surroundings of a large power transformer
Large power transformer electromagnetic field finite element method
2010/1/11
The presented study compares measured and calculated electromagnetic field quantities in the surroundings of a large power transformer with the aim to avoid the necessity of measuring the field on sub...
800 kV直流输电线路分裂导线表面(Calculation of Surface Electric Field along ±800 kV DC Transmission Lines with Bundled Conductors)
特高压直流输电 分裂导线 表面电场强度 模拟电荷法
2010/8/17
比较了马克特-门格尔法、模拟电荷法和逐步镜像法等3种计算导线表面场强方法的计算误差,应用模拟电荷法计算了±800 kV直流输电线路分裂导线表面电场强度。结果显示,特高压直流输电线路分裂导线表面电场强度受分裂数、导线截面、分裂间距、极间距的影响较明显,受导线高度的影响较小。
Numerical Calculation of the Flow Inside Pump Impellers Using 3D Euler Equations
Centrifugal Pump 3D Euler Equations Finite-Volume Technique Impeller Performance
2009/10/14
The flow pattern inside an impeller should be determined for maximum eciency and performance. The eects of the design parameters on the pump performance can be determined using numerical calculation...
COMPARISON OF CALCULATION METHODS FOR SMOKE AND HEAT EVACUATION FOR ENCLOSURE FIRES IN LARGE COMPARTMENTS
enclosure fires smoke and heat evacuation calculation methods
2009/10/14
A comparative study is presented of different calculation methods with respect to the evacuation of smoke and heat in the case of enclosure fires in large compartments. These methods range from manual...
RELIABLE SIMPLE ZONAL METHOD OF THE FURNACE THERMAL CALCULATION
thermal calculation boiler furnace zonal method
2009/10/13
The calculation of the furnace in the industrial and power boilers is the most important and the most responsible part of the thermal calculation, and it has important influence on the rationalization...