This project presented an investigation of effect of charged pressure for power generation
from Beta-Stirling engine. The engine was calculated power output and analyzed by computational
fluid dynamics software (ANSYS Fluent 16.2). The control volume was considered as 2D
axisymmetric for numerical method and the 𝑘𝑘 − 𝜀𝜀 turbulence model was used. The engine was
calculated at constant hot end temperature, 773 K and constant cold end temperature, 300 K. The
charged pressure in each case was 1, 2, 3 and 4 bar. The results showed that power output, heat
transfer rate and flow velocity were varied depending on the charged pressure. Increasing charged pressure of a working fluid resulted in increasing of power output due to increasing of pressure
distribution. Meanwhile, heat transfer rate increased due to higher fluid velocity. On the other hand,
temperature variation in hot volume decreased when charged pressure was increased.