Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
DESIGN AND MANUFACTURE OF A SMALL-SCALE GAMMA-TYPE STIRLING ENGINE PROTOTYPE AND ANALYSIS OF EFFICIENCY AND POWER USING FIRST-ORDER DESIGN METHODS
Submission Author:
Klünger Arthur Éster Beck , RS , Brazil
Co-Authors:
Klünger Arthur Éster Beck, Jean-Marc Lafay, Francisco Augusto Aparecido Gomes
Presenter: Klünger Arthur Éster Beck
doi://10.26678/ABCM.COBEM2019.COB2019-2345
Abstract
This work consists of the development, manufacture and instrumentation of a small-scale gamma-type Stirling engine prototype with the purpose of research the efficiency and the power using the First-Order Design Methods through the sensitivity of parameters of the engine. The processing of the instrumentation of the engine was accomplished utilizing a microcontroller LAUNCHXL–F28069M. The programming of the microcontroller was developed in the platform opensource software Code Composer Studio (CCS). The destined signals of the entrance to feed the microcontroller were composites for the measurements of pressure, temperatures, the angle and the rotation of turn of the engine through industrial sensors of high precision. The corresponding values of pressure were accomplished by a piezoelectric sensor of pressure of family 33 MBS – model 060G3038 connected in the entrance of the internal chamber of combustion of the prototype, that occurs the work through the power piston. The measurements of the internal temperature of the engine of the Stirling cycle were accomplished using two k type thermocouples, connected in both sources cold and hot of the engine. Through the election of a range of experimental results (pressure, temperatures, rotation of the engine and the angle of the engine) of the prototype, it was possible to calculate the efficiency and power described for the First-Order Design Methods. This method obtained maximum values of efficiency and power of 41,04 % and 48,56 W, respectively. This study verified that the pressure and rotation of the engine are essential parameters in the results of efficiency and power. Concluding that the model can be used for the initial design analysis of the project.
Keywords
Efficiency, Electronic instrumentation, First-Order Design Methods, Stirling engine, Thermodynamics
