INFLUENCE OF THE TEMPERATURE GRADIENT ON THE SPEED OF A STIRLING GAMMA ENGINE
This study aims to highlight the influence of the temperature gradient on the speed developed by a Stirling engine of the gamma type with a total cylinder capacity of 36.796 cm3. For the experimental determination of the speed a laser digital tachometer (Fervi C067) is used and the temperature gradient at the whole thermodynamic system is determined by means of temperature transducers (Pt100) and a thermal imaging camera (Flir T400). The Stirling engine is cooled in three configurations with the aid of a cooling fluid (water) for which the flow rate is monitored. The experimentally obtained data allows the plotting of the speed variation diagrams according to the temperature gradient, thus highlighting the optimal Stirling engine cooling rate for which the maximum speeds are recorded.
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