Heat transfer enhancement of a Stirling engine by using fins attachment in an energy recovery system

Compared to other traditional engines, the Stirling engine is an externally closed heat loop with a high theoretical efficiency and low emissions. Due its multi-fuel capacity, including solar, biogas geothermal energy, this property now becoming very advantageous. However, performance of penalized when being integrated source. Thus, research on enhancing engine's through transfer highlighted in paper. A numerical investigation effect circular, pin, rectangular fins presented report. The model was analyzed using computational fluid dynamics (CFD) method validated previous study without any additional enhancement material. result recorded average difference around 2.15% CFD models 3.13% experimental results. then added fins. An increment rate, power output are obtained highest achieved by 19.03%.