Finite element analysis of laser-diode heat emission and design of PI fuzzy cooling system

2005 ◽  
Author(s):  
Fusheng Yu ◽  
Xiaoqin Shen ◽  
Changlin Leng ◽  
Zhi Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Laser Diode ◽  
Cooling System ◽  
Heat Emission ◽  
Element Analysis

Accelerating the Product Development of a Commercial Vehicle Radiator using Finite Element Analysis

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
P.R. Roy ◽  
V. Hariram ◽  
M. Subramanian
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Product Development ◽  
Commercial Vehicle ◽  
Cooling System ◽  
Experimental Testing ◽  
Engine Oil ◽  
Operating Pressure ◽  
Element Analysis ◽  
Engine Cooling

Emissions such as Nox and CO resulting from the combustion of the diesel engines in the commercial vehicles leads to environmental degradation and ozone layer depletion. Alarming environment trend forces the government institutions to develop and enforce strict emission laws for the next generation transportation vehicles. Stricter emission laws mean higher operating pressure, temperature, reduced weight, tight packaging space, engine downsizing etc. Engine cooling systems are the critical components in the managing the engine cooling requirement of the commercial vehicle. Generally engine cooling system includes radiator, charge air cooler, engine oil cooler etc. Product development of thermal management system using the traditional design process takes more time, resource and money. To solve the complex design problem, numerical technique such as finite element analysis is performed upfront in the product development of the radiator to evaluate the structure behaviour under mechanical loading. In this paper, internal static pressure analysis of a radiator is presented to showcase the benefits of using the finite element technique earlier in the product design phase. Pressure cycle life at a critical joint of the radiator is calculated using strain-life approach. Finite element analysis aids in visualization of the hot spots in the design, comparing different design options with less turnaround time. Experimental testing and prototypes can be reduced. Risk of a product being failed is greatly minimized by performing the numerical simulation.

Finite-element analysis of solder joint strength in laser diode packaging

2000 ◽  
Author(s):  
Chi-Hsiung Chang ◽  
Maw-Tyan Sheen ◽  
Jao-Hwa Kuang ◽  
Chi-Chen Chen ◽  
Gol-Lin Wang ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Solder Joint ◽  
Laser Diode ◽  
Joint Strength ◽  
Element Analysis

scholarly journals Finite Element Analysis of System-Level Electronic Packages for Space Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-9
Author(s):  
Adrien Lambert ◽  
Ahsan Mian ◽  
Justin Hogan ◽  
Todd Kaiser ◽  
Brock LaMeres
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cooling System ◽  
System Level ◽  
Primary System ◽  
Electronic Systems ◽  
Element Analysis ◽  
Space Applications ◽  
Flight Operations ◽  
Radiation Sensor

Thermal analysis was required in order to aid in the design and testing of a radiation tolerant computing (RTC) system using a radiation sensor. During development of the system, different test beds were employed in order to characterize the radiation sensor and its supporting electronic systems. The most common preliminary tests are high altitude balloon tests which allow the sensor to experience cosmic radiation at high altitudes, consistent with space flight operations. In this study, finite element analysis (FEA) was used to evaluate primary system architecture, system support structures, and the flight payload in order to determine if the system would survive preliminary and future testing. ANSYS FEA software was used to create thermal models which accurately simulated convective cooling, system heat generation, and solar radiation loading on the exterior of the payload. The results of the models were then used to optimize payload PC board (PCB) design to ensure that the internal electronic systems would be within acceptable operating temperatures.

Numerical Characterization of a Jet Impingement Cooling System Using Coupled Heat Transfer Analysis

2015 ◽  
Author(s):  
E. Nadir Kaçar ◽  
L. Berrin Erbay
Keyword(s):  
Heat Transfer ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Volume ◽  
Cooling System ◽  
Jet Impingement ◽  
Element Analysis ◽  
Impingement Cooling ◽  
Single Row ◽  
Volume Analysis

In this study jet impingement cooling method is investigated with coupled analysis. Total cooling rate is observed for the specific jet impingement configuration using both finite volume and finite element methods. The specific configuration contains single row of jets of separate four rowed impingement cooling system. This single row is placed at the suction side of vane near trailing edge. For the observation, finite volume analysis is carried out via Fluent program. CFD model, which uses constant hot wall (target surface) temperature, is validated using the test case available in the literature. Constant wall temperature is 1250 K and hot gas of system is at 1500 K with 800 kPa. Moreover, conditions of cooling air are 500 K and 400 kPa. All conditions are determined to simulate specifications of a vane of middle class engine. The coupled solution is performed to calculate realistic heat transfer coefficient (htc) values. It involves concurrent execution of finite element analysis and finite volume analysis for aero-thermal optimization. Iterations are carried out via exchanging heat transfer coefficient values for finite element analysis and metal temperature values for finite volume analysis. At the end of three iterations, 8.1% decrease of htc values is obtained and optimum metal temperature values for the specified cooling configuration are calculated.

scholarly journals Simulation of the cooling process between 16 and 19 fin liners of a sedan automobile

2020 ◽  
pp. 1-5
Author(s):  
Iván De Jesús Cerrito-Tovar ◽  
Oscar Enrique García-Duarte ◽  
Héctor Huerta-Gámez ◽  
Neftali Carolina Cerrito-González
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cooling System ◽  
Cooling Time ◽  
Cooling Process ◽  
Element Analysis ◽  
Mechanical Element

In this paper a finite element analysis is carried out on the mechanical element called the piston liner; The main objective of the analysis is to know the advantages of increasing the number of fins in said mechanical element. For the piston to have greater durability and to function optimally, it is necessary to make certain adjustments to the cooling system, hence the fact of making modifications or improvements within the piston liner. Models of the piston liner were made, which were considered the most suitable to be subjected to simulations. Various simulations were carried out, which helped to conclude that the more fins there are, the better the piston performance. Basically, an analysis was made between the 16-fin liner and another analysis with the 19-fin liner, the results were as expected, the 19-fin liner gives us a more favorable cooling time for the piston

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