Multi-objective optimization of output power and stability of a free-piston Stirling engine using genetic algorithm

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Elyasi Meysam; Fakhari Vahid; SAFARPOUR PEDRAM

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Journal: Modares Mechanical Engineering Year:2018 | Volume:18 | Issue:6 Page(s): 20-29

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Information Journal Paper

Title

Multi-objective optimization of output power and stability of a free-piston Stirling engine using genetic algorithm

Author(s)

Elyasi Meysam | Fakhari Vahid | SAFARPOUR PEDRAM | Issue Writer Certificate

Keywords

Free-Piston Stirling EngineQ1

Output PowerQ1

StabilityQ2

Genetic AlgorithmQ2

Multi-Objective OptimizationQ1

Abstract

Today, with increasing consumption of non-renewable energy sources, scientists are looking for an alternative for these resources. The Stirling engine is one of the ideas that have recently attracted engineers' attention. The purpose of this study is to optimize the Output Power and Stability of a beta type Free-Piston Stirling Engine. In this regard, at first by deriving the thermodynamic and dynamic equations of the system and combining them, the governing equations are obtained including the nonlinear function of the pressure loss in heat exchangers. The governing nonlinear equations are solved and for the purpose of validation, simulation results obtained in this study are compared with experimental and simulation results presented in the literature. In Free-Piston Stirling Engines, increasing the Output Power by keeping their Stability is very important. Therefore, by performing parametric study, the parameters with more effects on the Output Power and Stability are determined and considered as optimization variables. In order to perform Multi-Objective Optimization of Output Power and Stability of the Free-Piston Stirling Engine, a proper objective function is selected and one of the methods in Genetic Algorithm is employed using optimization software Modefrontier. Finally, values of variables, before and after optimization and also, percentage of improvements in Output Power and Stability of the Free-Piston Stirling Engine are presented.

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APA: Copy

Elyasi, Meysam, Fakhari, Vahid, & SAFARPOUR, PEDRAM. (2018). Multi-objective optimization of output power and stability of a free-piston Stirling engine using genetic algorithm. MODARES MECHANICAL ENGINEERING, 18(6 ), 20-29. SID. https://sid.ir/paper/178100/en

Vancouver: Copy

Elyasi Meysam, Fakhari Vahid, SAFARPOUR PEDRAM. Multi-objective optimization of output power and stability of a free-piston Stirling engine using genetic algorithm. MODARES MECHANICAL ENGINEERING[Internet]. 2018;18(6 ):20-29. Available from: https://sid.ir/paper/178100/en

IEEE: Copy

Meysam Elyasi, Vahid Fakhari, and PEDRAM SAFARPOUR, “Multi-objective optimization of output power and stability of a free-piston Stirling engine using genetic algorithm,” MODARES MECHANICAL ENGINEERING, vol. 18, no. 6 , pp. 20–29, 2018, [Online]. Available: https://sid.ir/paper/178100/en

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