SavedAdd your journal

Journals / International Journal of Automotive Engineering and Technologies / 2020 / Cilt: 9 - Sayı: 4

Investigation on hydrodynamic characteristics of a Stirling regenerator matrix using porous media approach: a CFD study

Duygu İpci
Pages
171–177
Publication Date
2022-10-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The friction results are interpolated to generate a correlation equation that can be able to calculate the pressure drops in the flow direction of the regenerator and to use in future numerical simulations.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, hydrodynamic characteristics of a Stirling regenerator matrix are predicted by porous medium based modeling.
📊
Key Findings & Data:The viscous resistance and inertial resistance factors of the porous medium to be used in CFD analysis is determined from published experimental results for a regenerator made by stainless steel with the porosity of 70 %.
💡
Conclusion & Impact:The friction results are interpolated to generate a correlation equation that can be able to calculate the pressure drops in the flow direction of the regenerator and to use in future numerical simulations.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, hydrodynamic characteristics of a Stirling regenerator matrix are predicted by porous medium based modeling. A regenerator is designed to be used in the beta type Stirling engine. CFD analysis of the designed regenerator is performed by the ANSYS Fluent software with porous media model. The flow properties in porous media are generally approximated by Forchheimer or Ergun flow regime. The equation of the Forchheimer flow model consists of two-term: viscous loss and the inertial loss. The viscous resistance and inertial resistance factors of the porous medium to be used in CFD analysis is determined from published experimental results for a regenerator made by stainless steel with the porosity of 70 %. The CFD simulation are validated by comparing the calculated the velocity distributions at the exit of the regenerator with results of previously published paper. By using both resistance factors, pressure drops, and friction factors of the regenerator matrix are calculated via CFD analysis. The friction results are interpolated to generate a correlation equation that can be able to calculate the pressure drops in the flow direction of the regenerator and to use in future numerical simulations.

🔖

Cite This Article

İpci, D. (2022). Investigation on hydrodynamic characteristics of a Stirling regenerator matrix using porous media approach: a CFD study. International Journal of Automotive Engineering and Technologies, Cilt: 9 - Sayı: 4, 171–177. https://ajindex.com/articles/540298

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (1)

  1. D. Beck, and D. G. Wilson, “Gas-turbine regenerators”, Springer Science & Business Media, 2012 2. K. Yanaga, “Experimental and Numerical Study of the Stirling Engine Robust Foil Regenerator”, Graduate Theses, Dissertations, and Problem Reports, 7401, 2019. 3. M. Tanaka, I. Yamashita, F. Chisaka, “Flow and heat transfer characteristics of Stirling engine regenerator in oscillating flow”, Trans. Japan Soc. Mech. Eng., Ser. B, 55, 2478- 2485, 1989. 4. [4] P. Puech, V. Tishkova, “Thermodynamic analysis of a Stirling engine including regenerator dead volume”, Renewable Energy, 36(2), 872-878, 2011. 5. S. K. Andersen, H. Carlsen, P. G. Thomsen, “Numerical study on optimal Stirling engine regenerator matrix designs taking into account the effects of matrix temperature oscillations”, Energy Conversion and Management, 47(7-8), 894-908, 2006. 6. R. Gheith, F. Aloui and S. B. Nasrallah, “Determination of adequate regenerator for a Gamma-type Stirling engine”, Applied Energy, 139, 272-280, 2015. 7. Z. S. Yuan, “Oscillatory flow and heat transfer in a Stirling engine regenerator”, Doctoral dissertation, Case Western Reserve University, 1993. 8. M. C. Shin, J. A. and B. H. Kang, “Performance characteristics of a regenerative heat exchanger depending on its porous structure”, Korean J. of Air-Conditioning and Refrigeration Engineering, 24 (6), 487-496, 2012. 9. M. Arab, and M. Majidi, “Experimental and numerical study of porosity gradient in a Stirling engine regenerator” (No. 2017-01- 0148), SAE Technical Paper, 2017. 10. W. L. Chen, K. L. Wong, H. E. Chen, “An experimental study on the performance of the moving regenerator for a γ-type twin power piston Stirling engine”, Energy Conversion and International Journal of Automotive Engineering and Technologies, IJAET 9 (4) 171-177 177 Management, 77, 118-128, 2014. 11. S. C. Costa, H. Barrutia, J. A. Esnaola, M. Tutar, “Numerical study of the heat transfer in wound woven wire matrix of a Stirling regenerator”, Energy Conversion and Management, 79, 255-264, 2014. 12. S. C. Costa, M. Tutar, I. Barreno, J. A. Esnaola, H. Barrutia, D. García, M. A. Gonzalez, J. I. Prieto, “Experimental and numerical flow investigation of Stirling engine regenerator”, Energy, 72, 800-812, 2014. 13. B. G. Kim, W. S. Park, B. G. Koo, S. Park, “Effects of regenerator structure on performance of free piston Stirling engine (FPSE)”, Journal of Mechanical Science and Technology, 32(9), 4473-4484, 2018. 14. M. A. Mohammadi, and A.Jafarian, “CFD sim