Numerical simulation and experimental study of magnetron injection guns of high-power shortwave gyrotrons

1994 ◽  
Vol 35 (11-12) ◽  
pp. 640-645 ◽  
Author(s):  
V. E. Zapevalov ◽  
A. N. Kuftin ◽  
V. K. Lygin ◽  
Sh. E. Tsimring
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
High Power ◽  
Magnetron Injection Guns

Numerical Simulation and Experimental Study of High-Power Gyrotrons with Energy Recovery

2020 ◽  
Vol 62 (11) ◽  
pp. 749-759
Author(s):  
N. A. Zavol’sky ◽  
V. E. Zapevalov ◽  
A. N. Kuftin ◽  
A. S. Postnikova
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
High Power ◽  
Energy Recovery

Numerical Simulation Study of Double-Beam Magnetron-Injection Guns for High-Power Gyrotrons

2007 ◽  
Vol 35 (2) ◽  
pp. 402-406 ◽  
Author(s):  
Qing Zhao ◽  
AiXiang Dong ◽  
HongFu Li ◽  
Yong Luo ◽  
XiQiao Wu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Simulation Study ◽  
High Power ◽  
Double Beam ◽  
Magnetron Injection Guns

Numerical simulation and experimental study of magnetron-injection guns for powerful short-wave gyrotrons

1992 ◽  
Vol 72 (5-6) ◽  
pp. 1145-1151 ◽  
Author(s):  
A. N. KUFTIN ◽  
V K. LYGIN ◽  
Sh. E. TSIMRING ◽  
V. E. ZAPEVALOV
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Short Wave ◽  
Magnetron Injection Guns

scholarly journals Numerical and Experimental Study of Lightning Stroke to BIPV Modules

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 748
Author(s):  
Xiaoyan Bian ◽  
Yao Zhang ◽  
Qibin Zhou ◽  
Ting Cao ◽  
Bengang Wei
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Coupling Model ◽  
Maximum Temperature ◽  
Lightning Stroke ◽  
Study Results ◽  
Pv Modules ◽  
New Type ◽  
Metal Frame ◽  
Current Flows

Building Integrated Photovoltaic (BIPV) modules are a new type of photovoltaic (PV) modules that are widely used in distributed PV stations on the roof of buildings for power generation. Due to the high installation location, BIPV modules suffer from lightning hazard greatly. In order to evaluate the risk of lightning stroke and consequent damage to BIPV modules, the studies on the lightning attachment characteristics and the lightning energy withstand capability are conducted, respectively, based on numerical and experimental methods in this paper. In the study of lightning attachment characteristics, the numerical simulation results show that it is easier for the charges to concentrate on the upper edge of the BIPV metal frame. Therefore, the electric field strength at the upper edge is enhanced to emit upward leaders and attract the lightning downward leaders. The conclusion is verified through the long-gap discharge experiment in a high voltage lab. From the experimental study of multi-discharge in the lab, it is found that the lightning interception efficiency of the BIPV module is improved by 114% compared with the traditional PV modules. In the study of lightning energy withstand capability, a thermoelectric coupling model is established. With this model, the potential, current and temperature can be calculated in the multi-physical field numerical simulation. The results show that the maximum temperature of the metal frame increases by 16.07 °C when 100 kA lightning current flows through it and does not bring any damage to the PV modules. The numerical results have a good consistency with the experimental study results obtained from the 100 kA impulse current experiment in the lab.

Experimental study and numerical simulation of urea-assisted SAGD in developing exra-heavy oil reservoirs

2021 ◽  
Vol 201 ◽  
pp. 108436
Author(s):  
Daode Hua ◽  
Pengcheng Liu ◽  
Peng Liu ◽  
Changfeng Xi ◽  
Shengfei Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Heavy Oil ◽  
Oil Reservoirs ◽  
Heavy Oil Reservoirs
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