Numerical Simulation of Thermal Analysis and Geometric Parameter Optimization of IGBT

2019 ◽  
Author(s):  
Fang Li ◽  
Yinghui Lun ◽  
Cheng Peng ◽  
Wenhui Zhu ◽  
Hu He
Keyword(s):  
Numerical Simulation ◽  
Thermal Analysis ◽  
Geometric Parameter ◽  
Parameter Optimization

scholarly journals Design of Multilayer Ring Emitter Based on Metamaterial for Thermophotovoltaic Applications

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2299 ◽  
Author(s):  
Fekadu Maremi ◽  
Namkyu Lee ◽  
Geehong Choi ◽  
Taehwan Kim ◽  
Hyung Cho
Keyword(s):  
Numerical Simulation ◽  
Band Gap ◽  
Geometric Parameter ◽  
Parameter Optimization ◽  
Spectral Efficiency ◽  
Wide Angle ◽  
Broadband Emission ◽  
Simulation Results

The objective of this study is to design a broadband and wide-angle emitter based on metamaterials with a cut-off wavelength of 2.1 µm to improve the spectral efficiency of thermophotovoltaic emitters. To obtain broadband emission, we conducted the geometric parameter optimization of the number of stacked layers, the inner and outer radii of the nano-rings, and the thickness of the nano-rings. The numerical simulation results showed that the proposed emitter had an average emissivity of 0.97 within the targeted wavelength, which ranged from 0.2 µm to 2.1 µm. In addition, the presented multilayer nano-ring emitter obtained 79.6% spectral efficiency with an InGaAs band gap of 0.6 eV at 1400 K.

Thermal analysis of a triple helix ground heat exchanger using numerical simulation and multiple linear regression

Geothermics ◽  
2019 ◽  
Vol 81 ◽  
pp. 53-73 ◽  
Author(s):  
Hossein Javadi ◽  
Seyed Soheil Mousavi Ajarostaghi ◽  
Seyed Sina Mousavi ◽  
Mohsen Pourfallah
Keyword(s):  
Numerical Simulation ◽  
Thermal Analysis ◽  
Heat Exchanger ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Triple Helix ◽  
Ground Heat Exchanger

Numerical Simulation and Parameter Optimization on Forming Process of Automobile Torque Box

2014 ◽  
Vol 722 ◽  
pp. 140-146
Author(s):  
Wen Juan Zhang ◽  
Long Wu ◽  
Gang Chen
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Parameter Optimization ◽  
Process Parameters ◽  
Fem Simulation ◽  
Simulation Software ◽  
Drawing Process ◽  
Forming Process ◽  
Element Simulation

In this paper the drawing process of Box-torque was simulated by Dynaform, which is FEM simulation software. The process parameters, which affected the quality of forming, were optimized by finite element simulation. The emphasis was focus on the optimization of draw-bead and BHF and data were summarized from the optimization graphs. In this simulation, lengthways draw-bead was set on the technical face for reducing or eliminating wrinkle. It was innovation difference from the usual that the draw-bead was set on binder. Finally the correctness of simulation was approved by comparing the optimization of simulation with the data of experimentation.

Numerical Simulation and Parameter Optimization of Cam’s Fine Blanking Process

2011 ◽  
Vol 396-398 ◽  
pp. 134-139
Author(s):  
An Long ◽  
Rui Ge ◽  
Yi Sheng Zhang ◽  
Li Bo Pan
Keyword(s):  
Numerical Simulation ◽  
Simulation Model ◽  
Parameter Optimization ◽  
Processing Parameters ◽  
Forming Process ◽  
Fine Blanking ◽  
3D Software ◽  
Blanking Process ◽  
Deform 3D

To conclude the mechanics of fine blanking, the numerical simulation model of a cam’s fine blanking process was established, the forming process was simulated by DEFORM-3D software, the deform principle was summarized. Then the effect of three key processing parameters such as gap between punch and die, pressure-pad-force/counter force, serrated ring postion to fine blanking quality were researched, optimized parameters in fine blanking were gained.

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