How could you, based on your knowledge of efficiencies and thermo, improve the performance of the lab Stirling engine with primarily thermodynamic (as opposed to mechanical) improvements? Discuss in detail. Explain the thermodynamics background behind your proposals clearly.
While your proposed improvements must be thermodynamics in nature to qualify for credit in a thermo class, you must also discuss how to actually make the improvement in the lab engine.
Your arguments will be graded by both TAs and instructor.