Experimental and Numerical Study of Porosity Gradient in a Stirling Engine Regenerator

Paper #:
  • 2017-01-0148

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-0148
Citation:
Arab, M. and Majidi, M., "Experimental and Numerical Study of Porosity Gradient in a Stirling Engine Regenerator," SAE Technical Paper 2017-01-0148, 2017, doi:10.4271/2017-01-0148.
Pages:
6
Abstract:
The approaching the ideal efficiency assumption is possible in Stirling engine. Regenerator is the main component in improving the efficiency of the engine. Besides the Geometry and materials of the regenerator, amount and quality of porosity have significant impacts on the regenerator performance which is focused on this research. The main idea of this study is to evaluate the effect of porosity, or unsymmetrical porosity gradient in pressure drop and the thermodynamic performance of regenerator, so three models of regenerator are developed and analyzed: First, a model in which the porosity is constant and do not change (Common mode). In the Second model, the length of regenerator porosity is changed from high to low and in the third model, the length of regenerator porosity is changed from low to high. All versions of models have the same global porosity. Each of these models is separately simulated in Ansys software and validated with experimental results from a laboratory sample. The results show that in the second model with a small increase in pressure drop during recovery, the amount of energy recovery increase dramatically compared to the conventional model.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2003-10-19
Technical Paper / Journal Article
2003-11-10
Training / Education
2017-07-17
Technical Paper / Journal Article
2003-10-27
Technical Paper / Journal Article
2003-10-27