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Multiobjective optimization of a pin-fin heat sink using Evolutionary algorithms



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This paper presents the use of Multiobjective Evolutionary algorithms for the optimal geometrical Design of a pin-fin heat sink. The multiobjective Design problem is posed to minimize two conflicting objectives: the junction temperature and the fan Pumping power of the heat sink. The Design variables are Mixed integer/continuous. The Encoding/decoding process for this Mixed integer/continuous Design variables is detailed. The Multiobjective Optimizers employed to solve the Design problem are Population-based incremental learning, Strength pareto evolutionary algorithm, particles swarm optimization, and archived multiobjective simulated annealing. The approximate Pareto fronts obtained from using the various Optimizers are compared based upon the Hypervolume and generational Distance indicators. From the results, Population-based incremental learning (PBIL) outperforms the others. The New Design approach is said to be superior to a classical Design approach. It is also illustrated that the proposed multiobjective Design process leads to better Design compared to the current commercial pin-fin Heat sinks. Copyright © 2012 by ASME.

Strength pareto evolutionary algorithm (8 items found) | Multiobjective evolutionary algorithms (10 items found) | Population-based incremental learning (20 items found) | Multiobjective optimizers (1 items found) | Evolutionary algorithms (206 items found) | Distance indicators (1 items found) | Design variables (9 items found) | Mixed integer (2 items found) | Pumping power (19 items found) | Pareto front (12 items found) | Hypervolume (4 items found) | New design (66 items found) | Optimizers (14 items found) | Heat sinks (47 items found) | decoding (148 items found) | Encoding (110 items found) | Design (1176 items found) | Multi objective evolutionary algorithms | Pin-fin heat sinksDesign approaches | Mobility aids for blind persons | Multiobjective design problems | Particles swarm optimizations | Computational fluid dynamics | Multiobjective optimization | Performance comparison | Multi-objective design | Junction temperatures | Geometrical designs | Pin fin heat sinks | Design problems | Multi objective |

ต้นฉบับข้อมูล : scopus