Energy flux distribution in a plane anisotropic optical waveguide

1977 ◽  
Vol 27 (1) ◽  
pp. 939-942
Author(s):  
N. I. Avdeeva
Keyword(s):  
Optical Waveguide ◽  
Energy Flux ◽  
Flux Distribution

Investigation of High-Intensity Beam Characteristics on Welding Cavity Shape and Temperature Distribution

1990 ◽  
Vol 112 (1) ◽  
pp. 163-169 ◽  
Author(s):  
P. S. Wei ◽  
T. H. Wu ◽  
Y. T. Chow
Keyword(s):  
Temperature Distribution ◽  
Thermal Property ◽  
Energy Flux ◽  
High Intensity ◽  
Flux Distribution ◽  
Welding Process ◽  
Local Heat Transfer ◽  
Distribution Parameter ◽  
Beam Power ◽  
Cavity Shape

A model for investigating the characteristics of a high-intensity beam on welding cavity shape and temperature distribution is developed. The beam power density is assumed to have a Gaussian distribution. The local heat transfer rate to the liquid-vapor interface depends on this distribution and on the interface contour. This contour as determined by an iterative procedure involves simultaneously satisfying the heat conduction rate into the liquid and equilibrium of the normal forces. Computed shapes of the cavity and the free surface temperature distributions agree well with experimental data. The beam energy flux distribution parameter is found to have the strongest effect on the welding process. The predicted dimensionless curve of the beam power-penetration depth parameter versus the welding velocity-thermal property parameter is also in accord with experimental results. The use of the energy flux distribution parameter instead of the fusion zone width at the workpiece surface for the welding velocity-thermal property parameter is recommended.

Characteristics of Energy Flux Distribution of Concentrating Solar Power Systems

2018 ◽  
Vol 55 (12) ◽  
pp. 120004
Author(s):  
张娜 Zhang Na ◽  
王成龙 Wang Chenglong ◽  
梁飞 Liang Fei ◽  
朱国栋 Zhu Guodong ◽  
赵雷 Zhao Lei
Keyword(s):  
Power Systems ◽  
Energy Flux ◽  
Flux Distribution ◽  
Solar Power ◽  
Concentrating Solar Power

scholarly journals Energy flux distribution in a two-temperature Ising model

2005 ◽  
Vol 2005 (02) ◽  
pp. P02008 ◽  
Author(s):  
Vivien Lecomte ◽  
Zoltán Rácz ◽  
Frédéric van Wijland
Keyword(s):  
Ising Model ◽  
Energy Flux ◽  
Flux Distribution ◽  
Two Temperature

Dynamic Formation of Excited Helicon Wave Structure and Estimation of Wave Energy Flux Distribution

1996 ◽  
Vol 35 (Part 2, No. 6A) ◽  
pp. L731-L734 ◽  
Author(s):  
Shunjiro Shinohara ◽  
Yoko Miyauchi ◽  
Yoshinobu Kawai
Keyword(s):  
Energy Flux ◽  
Wave Energy ◽  
Flux Distribution ◽  
Wave Structure ◽  
Helicon Wave ◽  
Wave Energy Flux ◽  
Dynamic Formation

Effects of sea ice on wave energy flux distribution in the Bohai Sea

2020 ◽  
Vol 162 ◽  
pp. 2330-2343
Author(s):  
Na Zhang ◽  
Shuai Li ◽  
Yongsheng Wu ◽  
Keh-Han Wang ◽  
Qinghe Zhang ◽  
...  
Keyword(s):  
Sea Ice ◽  
Energy Flux ◽  
Wave Energy ◽  
Bohai Sea ◽  
Flux Distribution ◽  
The Bohai Sea ◽  
Wave Energy Flux

scholarly journals Analysis and comparison of optical performance and collectible solar energy between multi-sectioned compound parabolic concentrator (CPC) and restricted exit angle CPC

1970 ◽  
Vol 47 (2) ◽  
pp. 457-471
Author(s):  
Damasen Ikwaba Paul
Keyword(s):  
Solar Radiation ◽  
Energy Flux ◽  
Flux Distribution ◽  
Simulation Analysis ◽  
Radiation Energy ◽  
Exit Angle ◽  
Optical Performance ◽  
Optical Efficiency ◽  
Angular Acceptance ◽  
Ray Trace

This study was conducted to analyse and compare the optical performance and collectible solar radiation energy of two different Compound Parabolic Concentrators (CPCs): multi-sectioned CPC (hereafter called M-CPC) and restricted exit angle CPC (hereafter called R-CPC) so as to ascertain the best CPC for photovoltaics applications. For easy comparison between M-CPC and R-CPC, a standard CPC (hereafter called S-CPC) was also designed. A detailed ray trace simulation analysis was undertaken to compare ray trace diagrams, angular acceptance, optical efficiency and energy flux distribution of the three CPCs. Results indicated that the angular acceptance and optical efficiency of the three CPCs were the same (100%) between 0º and 15º incidence angles, but significantly varied above 15º. On the other hand, solar radiation distribution on the solar cell was more uniform for the M-CPC than that of S-CPC and R-CPC. In terms of annual solar radiation collection, results indicated that both S-CPC and M-CPC collected approximately the same amount of energy (49,500 W/m2). Furthermore, the energy collected by S-CPC or M-CPC was higher than that collected by R-CPC by about 23%. Therefore, based on the energy flux distribution and collectible solar radiation energy, M-CPC is the best concentrator for photovoltaics applications. Keywords: Multi-sectioned CPC, restricted exit angle CPC, optical performance, collectible solar radiation energy

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