Is There Heat Transfer in a Stirling Engine's Constant Volume Process?

Thread starter notojosh
Start date May 25, 2011
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Constant Process Volume

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In a Stirling engine's constant volume process, heat transfer (Q) does exist, as indicated by the relationship Q = dU, where dU represents the change in internal energy. Since the volume remains constant, the work done (dW) is zero, simplifying the first law of thermodynamics to dQ = dU. For an ideal gas, the change in internal energy can be expressed as dU = nCvdT, linking heat transfer to temperature changes. The equation Q = E = 3/2nRT suggests a connection to the ideal gas law, reinforcing that heat transfer is relevant in this process. Understanding these thermodynamic principles is crucial for analyzing Stirling engine efficiency.

May 25, 2011

notojosh

Does Q exist during Constant volume process in Stirling engine? It seems like Q=E=3/2nRT? but I am not quite sure.

Last edited: May 25, 2011

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May 25, 2011

Andrew Mason

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notojosh said:

Does Q exist during Constant volume process in Stirling engine? It seems like Q=E=3/2nRT? but I am not quite sure.

If the process is constant volume dW = PdV =0 so from the first law of thermodynamics (dQ = dU + dW) dQ = dU. For an ideal gas, dU = nCvdT

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