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← ScienceWhich outcome occurs when a Stirling engine cycle operates at an extremely high frequency?
A)Reduced indicated thermal engine efficiency
B)Increased isothermal heat transfer capacity
C)Temperature gradient within individual pistons✓
D)Enhanced engine cycle compression ratio
💡 Explanation
Operating at high frequency reduces time for complete compression or expansion causing a temperature gradient within the pistons due to insufficient cyclic cooling. Therefore, a temperature differential emerges rather than isothermal operation because incomplete heat transfer becomes the limiting mechanism.
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