| Issue |
E3S Web Conf.
Volume 313, 2021
19th International Stirling Engine Conference (ISEC 2021)
|
|
|---|---|---|
| Article Number | 12001 | |
| Number of page(s) | 9 | |
| Section | Thermodynamic Modelling and CFD Simulation | |
| DOI | https://doi.org/10.1051/e3sconf/202131312001 | |
| Published online | 22 October 2021 | |
External heat transfer enhancement of a beta-type Stirling engine with fins as regenerator
Aerodynamics, Heat Transfer and Thermofluids Group, Department of Aerospace Engineering, Faculty of Engineering, University Putra Malaysia, 43400 Serdang, Selangor
The Stirling engine is an externally heat engine closed loop with a high theoretical performance and low emissions compared to other conventional engines. This property nowadays becomes very advantageous due to its multi-fuel capacity including solar, biogas and geothermal energy. In this study, a numerical investigation of the effect of a circular, pin, and rectangular fins on the performance of the Stirling engine is introduced. The 3D CFD model was performed and validated with previous experimental study. The power output, heat transfer rate and efficiency were studied for all cases of fins. The results indicated a close agreement between the numerical and the experimental results with average difference for power of the engine approximately around 2.8%. The efficiency decrease with the increase of the rotational speed of the engine and the highest efficiency is indicated for rectangular fins.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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