An integrated methodology for both the design optimization and the performance evaluation of free-piston Stirling engines (FPSEs) suitable for space applications is presented. The prediction of the dynamic behavior is considered in detail. To this aim, a stability criterion is established, based on the assumption of a thermodynamic reference model, able to take into account the main energy losses. In this way, it is possible to define useful design rules that must be observed in order to guarantee a correct behavior of the engine. In the reported design example, such behavior is verified by means of a previously developed code which performs a dynamic and thermodynamic simulation.
Dynamic Behaviour Prediction of Free-Piston Stirling Engines
DE MONTE, FILIPPO;
1990-01-01
Abstract
An integrated methodology for both the design optimization and the performance evaluation of free-piston Stirling engines (FPSEs) suitable for space applications is presented. The prediction of the dynamic behavior is considered in detail. To this aim, a stability criterion is established, based on the assumption of a thermodynamic reference model, able to take into account the main energy losses. In this way, it is possible to define useful design rules that must be observed in order to guarantee a correct behavior of the engine. In the reported design example, such behavior is verified by means of a previously developed code which performs a dynamic and thermodynamic simulation.Pubblicazioni consigliate
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