10.1007/s40095-022-00546-w

Assessment of a diaphragm thermoacoustic Stirling engine using the energy standpoint and genetic algorithm

  • Shahryar Zare*1,
  • Maedeh makki2,
  • Masoud Rasooli3,
  • Hassan Shafiee Alavi4,
  • A. R. Tavakolpour-Saleh1,
  1. Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz, IR
  2. Department of Mechanical, Sharif University of Technology, Tehran, IR
  3. Kish Branch, Islamic Azad University, Kish, IR
  4. Department of Computer Engineering, Shiraz Branch, Islamic Azad University, Shiraz, IR

Published in Issue 2022-10-31

How to Cite

Zare, S., makki, M., Rasooli, M., Alavi, H. S., & Tavakolpour-Saleh, A. R. (2022). Assessment of a diaphragm thermoacoustic Stirling engine using the energy standpoint and genetic algorithm. International Journal of Energy and Environmental Engineering, 14(4 (December 2023). https://doi.org/10.1007/s40095-022-00546-w
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Abstract

Abstract This paper presents a novel method to estimate the design parameters of a diaphragm thermoacoustic Stirling engine and investigate the stable limit cycle (sufficient condition) of the engine dynamic using the genetic algorithm and system energy changes. In this regard, first, the parametric equations are extracted by employing both the governing equations of the engine and energy standpoint. Next, Vc0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${V}_{\mathrm{c}0}$$\end{document} (initial volume of compression space), Rq\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${R}_{q}$$\end{document} (pneumatic resistance), Vh0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${V}_{h0}$$\end{document} (initial volume of expansion space), and hot gas temperature ( Th\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${T}_{\mathrm{h}}$$\end{document} ) are taken as the design parameters in this study. Genetic algorithm and parametric equations were then utilized to estimate the chosen design parameters. Next, the sufficient condition of the engine is evaluated based on the estimated design parameters. The simulated outcomes are shown that the sufficient condition is satisfied by the estimated design parameters. Afterward, the simulated results are validated using experimental data gathered from the constructed SUTech-SR-3 engine. Comparing the extracted data eventuates a proper method of estimating design parameters and satisfying the sufficient condition related to the SUTech-SR-3 engine. It is worth noting that in this research, the dynamic of the thermoacoustic Stirling engine has investigated using a mechanical point of view. Also, in this paper, only the dynamic behavior of the engine has been investigated, and the production power and work have not been studied.

Keywords

  • Diaphragm thermoacoustic Stirling engine,
  • Thermoacoustic engine,
  • Stirling engine,
  • Genetic algorithm

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