Modeling and optimization of designing parameters for a parallel-plain fin heat sink with confined impinging jet using the response surface methodology

Chiang, Ko-Ta

doi:10.1016/j.applthermaleng.2007.02.004

Cited by 37 publications

(14 citation statements)

References 12 publications

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“…The designing of these systems, which can be viewed as the answer to how to organize the fluid flow and solid constituents (e.g., heat sink dimensions, fins shape, fins spacing, and materials) for minimal thermal resistance [1], has been studied extensively, e.g., see [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Thermal Resistance Minimization of a Fin-and-Porous-Medium Heat Sink with Evolutionary Algorithms

Tye-Gingras

Gosselin

2008

Numerical Heat Transfer, Part A: Applications

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This article presents a conceptual design of a heat sink combining a porous medium whose matrix is highly conductive and a fin. A simplified model is presented to estimate the performance of the system, relying on Darcy law and local thermal equilibrium. The objective is to minimize the hot-spot temperature under global mass constraint by using an optimization procedure based on genetic algorithms. The design variables are the porosity and material of each layer of the porous medium, the fin material, height, and width, the aspect ratio of the heat sink, and the shape of a weightless upper corner deflector which reduces the width of the inlet and outlet air slots while removing the less useful mass. Results show that the optimal porous layers were generally of copper, independent of the mass constraint. However, the fin is mostly beneficial for heavier designs, while the deflector becomes more important when lightness is required. These two special features show their efficiency by allowing a mass reduction of 95% with a decrease of only 24% in the cooling performance.

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Section: Introductionmentioning

confidence: 99%

Thermal Resistance Minimization of a Fin-and-Porous-Medium Heat Sink with Evolutionary Algorithms

Tye-Gingras

Gosselin

2008

Numerical Heat Transfer, Part A: Applications

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“…Gondipalli et al [20] investigated enhancing the thermal performance of the impingement-parallel plate heat sink without increasing the pressure drop by removing fin material only for the two middle fins of the heat sink along its length and height, making it a 'two-step model' as shown in Figure 4. Figures 3 and 4 show the temperature contours of the baseline case and the previously proposed 'sub-optimum' design.…”

Section: Problem Definitionmentioning

confidence: 99%

“…Chiang [19] presented a study based on that data using the Taguchi method for DOE and ANOVA to minimize thermal resistance based on optimizing the heat sink geometric design parameters. The author also extended the study by performing modeling and optimization using response surface methodology (RSM) [20]. This time, the design parameters were changed to height and thickness of fin, width of passage between fins, distance between the cooling fan and the tip of fins, and the thermal resistance and pressure drop as the thermal performance characteristics.…”

Section: Introductionmentioning

confidence: 99%

Fin-shape optimization of an impingement-parallel plate heat sink

Gondipalli

Sammakia

et al. 2010

2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems

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As the power dissipated by advanced microelectronic devices continues to increase, the demand for reliability also increases. This increases the requirements on the thermal performance of every part of the system, including the heat sink. One of the objectives of this study is to examine the effect of shape of the heat sink fins on the thermal performance of the system. The pressure gradient from the fan to the base of the heat sink, near the center, tends to be high. This significantly reduces the airflow at that location and, hence, decreases transport in that region. Parallel plate heat sinks have been investigated by removing fin material near the center along the length and height of the fins. The junction-to-ambient temperature difference and pressure drop are adopted as thermal performance characteristics. Five design variables related to the fin shape were considered and the most significant influential geometric parameters for minimizing the objective functions identified using the analysis of variance (ANOVA) approach. Different fin shapes have been studied with the objective of searching for a new optimal heat sink design by optimizing the variables that improve the thermal performance without increasing pressure drop across the heat sink.

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“…Systematic experimental design is carried out and is based on the Box-Behnken Design (BBD), a standard method of response surface methodology (RSM) [20]. RSM is a method used to optimize the experimental conditions, suitable for solving nonlinear data processing-related problems, including techniques such as experimental design, modeling, testing the suitability of the model, searching for the best combination of conditions, and so on.…”

Section: Experimental Methodsmentioning

confidence: 99%

A Comprehensive Empirical Correlation for Finned Heat Exchangers with Parallel Plates Working in Oscillating Flow

2017

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Abstract:The oscillating-flow heat transfer performance in finned heat exchangers is one of the main factors affecting the working efficiency of regenerative heat engines and refrigerators. In addition to the working parameters, the geometrical parameters of finned heat exchangers are also major influencing factors. In the present study, the ratio of the heat exchanger length and hydraulic diameter is applied as an independent similarity criterion. An experimental study has been carried out with six different geometrical dimensions of finned heat exchangers with parallel plates, in order to analyze the impacts of fin length, plate spacing, and corresponding relative fluid displacement amplitude, under various working conditions. Based on 298 tested points, a comprehensive empirical correlation for the finned heat exchangers with parallel plates working in oscillating flow has been proposed, providing a relatively accurate prediction, with 98.6% of data in the ±20% deviation and 83.9% of data in the ±10% deviation, within the range discussed.

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Modeling and optimization of designing parameters for a parallel-plain fin heat sink with confined impinging jet using the response surface methodology

Cited by 37 publications

References 12 publications

Thermal Resistance Minimization of a Fin-and-Porous-Medium Heat Sink with Evolutionary Algorithms

Thermal Resistance Minimization of a Fin-and-Porous-Medium Heat Sink with Evolutionary Algorithms

Fin-shape optimization of an impingement-parallel plate heat sink

A Comprehensive Empirical Correlation for Finned Heat Exchangers with Parallel Plates Working in Oscillating Flow

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