scholarly journals Thermal Analysis of Main Components in The Design of High-power Tetrode

2021 ◽  
Vol 2108 (1) ◽  
pp. 012079
Author(s):  
Haoran Zhong ◽  
Wenbo Chen ◽  
Xueyu Gong ◽  
Honghu Wu ◽  
Puqiong Yang ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
High Power ◽  
Heat Dissipation ◽  
Heating System ◽  
Ion Cyclotron Resonance ◽  
Rf Power ◽  
Dissipation Structure ◽  
Main Components ◽  
Grid Anode ◽  
Important Significance

Abstract High-power tetrode is a key component in ion cyclotron resonance heating system, as the final amplifier component to increase the RF power to the megawatt level. Thermal analysis is of important significance to the development and use of high-power tetrodes. In this paper, the trajectory of particles during the operation of the tetrode is obtained by CST particles studio, and its energy conversion is analyzed through the simulation results. Then the grid, anode, and support structure of the tetrode are analyzed thermally in Ansys Workbench, and the results are helpful to the design of the heat dissipation structure of the tetrode.

Enhanced Energy Efficiency of Light Grid System with Optimized System Design and Recycling with Thermoelectric Platform

2021 ◽  
Vol 21 (3) ◽  
pp. 1927-1931
Author(s):  
Jae-Hoon Ji ◽  
Hong-Tae Kim ◽  
Sung-Jin Kim ◽  
Masao Kamiko ◽  
Jung-Hyuk Koh
Keyword(s):  
Energy Efficiency ◽  
High Power ◽  
Heat Dissipation ◽  
Electrical Energy ◽  
Grid System ◽  
Optical Energy ◽  
Thermoelectric Modules ◽  
Dissipation Structure ◽  
High Power Led ◽  
Effective Design

In this work, a light grid system with a high-power LED chip was manufactured and employed to analyze the energy efficiency of output optical energy. The high-power LED system based on thermoelectric modules, a heat dissipation structure and optical transmission system with an optical fiber were optimally combined and designed, which increased the efficiency of light grid system. Additionally, by introducing an effective design for the heat dissipation structure, the output optical energy and recycled electrical energy were increased. The recycled energy through optimized heat dissipation structure was 1.94 W, and the system efficiency of designed light grid system is more than 50%. In this research, we intensively studied the energy efficiency of a light grid system as well as the recycling of thermal energy through thermoelectric modules.

Thermal analysis and an improved heat-dissipation structure design for an AlGaInP-LED micro-array device

2017 ◽  
Vol 13 (4) ◽  
pp. 282-286 ◽  
Author(s):  
Chao Tian ◽  
Shu-xu Guo ◽  
Jing-qiu Liang ◽  
Zhong-zhu Liang ◽  
Feng-li Gao
Keyword(s):  
Thermal Analysis ◽  
Heat Dissipation ◽  
Structure Design ◽  
Dissipation Structure ◽  
Micro Array

Simulation Research on the Heat Dissipation Performance of a High Power LED Radiator

2012 ◽  
Vol 224 ◽  
pp. 389-394
Author(s):  
Shu Zhen Jiang ◽  
Zhong Ning Guo ◽  
Yu Deng
Keyword(s):  
Thermal Analysis ◽  
Life Span ◽  
High Power ◽  
Heat Dissipation ◽  
Light Emitting Diode ◽  
Environment Friendly ◽  
Simulation Research ◽  
Light Emitting ◽  
High Power Led ◽  
Long Life

Applied in illumination area, high power LED (Light Emitting Diode) has a series of advantages with energy saving, environment-friendly, long life span, etc. However, the heat dissipation of the LED is a bottleneck in its development, and has become a key point which must be studied and solved urgently. In this paper, a typical LED lamp is modeled and thermal analysis has been performed using the software of Ansys.

THE HIGH POWER, LONG PULSE ION CYCLOTRON RESONANCE HEATING SYSTEM FOR TEXTOR

1983 ◽  
pp. 1275-1282
Author(s):  
V.P. Bhatnagar ◽  
L. Bral ◽  
R. Koch ◽  
D.I.C. Pearson ◽  
P.E. Vandenplas ◽  
...  
Keyword(s):  
High Power ◽  
Cyclotron Resonance ◽  
Heating System ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron ◽  
Long Pulse

scholarly journals Analysis on High-Power Seaport LED Luminaire with Uniform Light Distribution Based on Optimized Lens and Heatsink

2021 ◽  
Vol 11 (9) ◽  
pp. 4035
Author(s):  
Jinsheon Kim ◽  
Jeungmo Kang ◽  
Woojin Jang
Keyword(s):  
Light Source ◽  
High Power ◽  
Heat Dissipation ◽  
Light Emitting Diode ◽  
Light Distribution ◽  
Light Sources ◽  
Led Light ◽  
High Power Led ◽  
Distribution Requirement ◽  
Lighting Application

In the case of light-emitting diode (LED) seaport luminaires, they should be designed in consideration of glare, average illuminance, and overall uniformity. Although it is possible to implement light distribution through auxiliary devices such as reflectors, it means increasing the weight and size of the luminaire, which reduces the feasibility. Considering the special environment of seaport luminaires, which are installed at a height of 30 m or more, it is necessary to reduce the weight of the device, facilitate replacement, and secure a light source with a long life. In this paper, an optimized lens design was investigated to provide uniform light distribution to meet the requirement in the seaport lighting application. Four types of lens were designed and fabricated to verify the uniform light distribution requirement for the seaport lighting application. Using numerical analysis, we optimized the lens that provides the required minimum overall uniformity for the seaport lighting application. A theoretical analysis for the heatsink structure and shape were conducted to reduce the heat from the high-power LED light sources up to 250 W. As a result of these analyses on the heat dissipation characteristics of the high-power LED light source used in the LED seaport luminaire, the heatsink with hexagonal-shape fins shows the best heat dissipation effect. Finally, a prototype LED seaport luminaire with an optimized lens and heat sink was fabricated and tested in a real seaport environment. The light distribution characteristics of this prototype LED seaport luminaire were compared with a commercial high-pressure sodium luminaire and metal halide luminaire.

scholarly journals Electromagnetic Field Analysis and Design of a Hermetic Interior Permanent Magnet Synchronous Motor with Helical-Grooved Self-Cooling Case for Unmanned Aerial Vehicles

2021 ◽  
Vol 11 (11) ◽  
pp. 4856
Author(s):  
Hae-Sol Lee ◽  
Myeong-Hwan Hwang ◽  
Hyun-Rok Cha
Keyword(s):  
Electromagnetic Field ◽  
Unmanned Aerial Vehicles ◽  
Permanent Magnet ◽  
High Power ◽  
Heat Dissipation ◽  
Power Source ◽  
Flight Duration ◽  
Aerial Vehicles ◽  
Drive Motor ◽  
Interior Permanent Magnet

As unmanned aerial vehicles expand their utilization and coverage, research is in progress to develop low-weight and high-performance motors to efficiently carry out various missions. An electromagnetic field interior permanent magnet (IPM) motor was designed and analyzed in this study that improved the flight performance and flight duration of an unmanned aerial vehicle (UAV). The output power and efficiency of a conventional commercial UAV motor were improved by designing an IPM motor of the same size, providing high power output and high-speed operation by securing high power density, wide speed range, and mechanical stiffness. The cooling performance and efficiency of the drive motor were improved without requiring a separate power source for cooling by introducing the helical-grooved self-cooling case, which has a low heat generation structure. Furthermore, the motor is oil-cooled through rotating power without a separate power source, reducing the weight of the UAV. The heat dissipation characteristics were verified by fabricating a prototype and taking actual measurements to verify the validity of the heat dissipation characteristics. The results of this study are expected to improve the flight duration and performance of UAVs and contribute to the efficiency of the design of a UAV drive motor.

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