Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Portrayal of displacer and temperature in Beta-type Stirling Engine
Submission Author:
Bryan Castro Caetano , MG
Co-Authors:
Oscar Ricardo Sandoval Rodriguez, Ramon Molina Valle, Isadora F. Lara, Giovanni Giudice, Bryan Castro Caetano
Presenter: Bryan Castro Caetano
doi://10.26678/ABCM.COBEM2017.COB17-2516
Abstract
In this paper, a Beta-type Stirling engine was designed, manufactured and optimized, having its performance tested with air at atmospheric pressure and with a gas burner as the heat source. On the prototype tests the clearance between the cylinder and the displacer, and the hot-source temperature were modified for the purpose of correlate the impact on the performance. The trials were performed with cylinder-displacer gaps of 1.5, 1.0 and 0.5 mm, as well as temperature differentials of 580°C and 480°C. Deviations of engine torque, power and rotation are presented using an electrical test bench. The results indicate that a maximum power of 0.24 W and a mean gauge effective pressure of 17.4 kPa was attained at 680 rpm with a displacer-cylinder of 22 mm and a differential temperature between hot and cold chamber of 580°C.
Keywords
Stirling engine, Beta, Gap losses, renewable energy, Piston- Cylinder arrangement
