Abstract:
Prof. R.A. Attalage and Dr.W.M.S.R.Weerasinghe of University of Moratuwa organized our group
under the module ME420, with the goal of designing and modeling a Stirling engine that could be used
to generate power for small scale applications. In order to develop a compact and low cost Stirling
engine, a gamma type Stirling engine with simple regenerator and a rhombic mechanism was developed.
Its target shaft power is 50 W at engine speed of 2000 rpm and mean pressure of 0.8 MPa using air as
working gas. This report describes the outline of the engine design and the performance test. The test
was done without load, using air in atmospheric condition. The results indicate that a higher
performance heat exchanger and decreasing of mechanical loss are needed for the attainment of the
target performance
