Dynamic model of a free-piston Stirling engine with four degrees of freedom combined with the thermodynamic submodel

Adrian Chmielewski , Robert Gumiński , Jędrzej Mączak

Abstract

The work presents a dynamic model of the Stirling engine with a free piston, which was combined with a thermodynamic model taking into account isothermal heat exchange in the compression and expansion spaces. On the basis of the performed thermodynamic analysis for the Stirling engine working space, and of the physical model of the system with a free piston, a multidomain simulation model was developed, using the Matlab&Simulink software. On the basis of the derived equations of energy conservation for the thermodynamic model and equations of motion for the mechanical submodel, the influence of the selected thermodynamic and mechanical parameters, including: the influence of the mass of the displacer and piston on the p(V) closed-loop diagram was analysed and the influence of the thermodynamic parameters, including: temperature of the upper heat source on the theoretical work gain and the theoretical work. As a result of the conducted simulations, flow of the working gas mass at the control boundaries and also the curves of the heat fluxes, among other things, were additionally presented. The results presented in this work convey practical information about the thermodynamic and dynamic properties of the simulated object represented by the Stirling engine with a free piston.
Author Adrian Chmielewski IP
Adrian Chmielewski,,
- Institute of Vehicles
, Robert Gumiński IP
Robert Gumiński,,
- Institute of Automotive Engineering
, Jędrzej Mączak IP
Jędrzej Mączak,,
- Institute of Automotive Engineering
Pages583-588
Publication size in sheets0.5
Book Proceedings of MMAR 2016, 2016, IEEE Xplore® Digital Library, ISBN 978-1-5090-1866-6, DOI:10.1109/MMAR.2016.7575201
Keywords in EnglishStirling engine, free piston, dynamic model, thermodynamic processes, thermodynamic analysis.
DOIDOI:10.1109/MMAR.2016.7575201
URL http://www.epapers.org/mmar2016/ESR/paper_details.php?PHPSESSID=7rfgpvsuu1qsd94mdrprer48r7&paper_id=6220
Languageen angielski
Score (nominal)15
ScoreMinisterial score [Punktacja MNiSW] = 15.0, 30-05-2017, BookChapterMatConf
Ministerial score (2013-2016) [Punktacja MNiSW (2013-2016)] = 15.0, 30-05-2017, BookChapterMatConf
Citation count*8 (2018-06-13)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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