Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
CHARACTERIZATION OF A PROTOTYPE BETA TYPE FREE PISTON STIRLING ENGINE TO CONVERT THERMAL ENERGY INTO ELETRIC POWER FOR A THE SPACE APLICATION
Submission Author:
Rafael Theodoro , SP
Co-Authors:
Rafael Theodoro, Ana Santos, Valéria Leite, Lamartine Guimarães
Presenter: Rafael Theodoro
doi://10.26678/ABCM.ENCIT2020.CIT20-0444
Abstract
This paper deals with the capture of operating data from a prototype free piston Stirling engine (FPSE) through electronic data acquisition system. Also, a numerical simulation is built for the FPSE to understand the thermodynamic behavior of this system. First, there is a brief discussion about the engine design parameters and about the heat exchangers. After that, it is described the data acquisition system, and the equations to model the thermodynamic parameters of the FPSE. Based on a certain operating frequency of the FPSE, the prototype data is are collected for that power. Next, the characterization of the springs is performed once the spring is a primordial component that helps the movement of the pistons. Finally, with all the characterizations, it is possible to understand how the FPSE works around determined temperature. The operation and mechanical data of the prototype FPSE are collected and analyzed. That data can help future optimizations of the mechanical system, in such a way to obtain more power and efficiency of the Stirling engine.
Keywords
Free Piston, Stirling engine, Power Converter
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