Study of the regenerator constituting material influence on a gamma type Stirling engine |
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Authors: | Gheith Ramla Aloui Fethi Nasrallah Sassi Ben |
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Affiliation: | 1.École des Mines de Nantes, GEPEA UMR-CNRS 6144, Département Systèmes Énergétiques et Environnement, LUNAM Université, 4 rue Alfred KASTLER BP20722, 44307, Nantes Cedex 03, France ;2.ENSIAME, TEMPO (DF2T) — EA 4542 Le Mont Houy, Université de Valenciennes, F-59313, Valenciennes Cedex 9, France ;3.École Nationale d’Ingénieurs de Monastir, Laboratoire LESTE, Université de Monastir, Avenue Ibn El Jazzar, 5019, Monastir, Tunisie ; |
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Abstract: | A gamma Stirling engine with compressed air as working fluid was investigated. This engine operates at a maximum charge pressure
of 10 bar, runs at a maximum rotation speed of 600 rpm and can provide 500 W of brake power on the shaft. The engine is equipped
with several pressure sensors and thermocouples. This experimental study concentrates on the regenerator constituting material
(porous medium). Four different materials were investigated: stainless steel, copper, aluminum and Monel 400. The obtained
experimental results provide guidance to Stirling engine enhancement and selection of the appropriate regenerator material.
As a conclusion, the regenerator has an important role to enhance the heat exchange and to improve Stirling engine performance,
which closely depends on its constituting material. |
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