Heat Transfer

Small Potato vs Large Potato

When comparing the heat transfer between a small potato and a large potato, it should make sense that the larger the potato, the more heat transfer required, and therefore the longer the cooking time.

Letís rationalize that.

It takes time for heat to transfer through a potato. The potato center has to reach a high enough temperature for a long enough time for it to cook. As a potato cooks, the heat is slowly transferred to the center of the potato. Because the potato does not have as good of heat transfer properties as say a metal does, this process takes time. Therefore the more potato the heat has to cook, the slower the baking process.

Return to Baking a Potato
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[Introduction | Kinetics | Heat Transfer | Mass Transfer | Bibliography]

This project was funded in part by the National Science Foundation and is advised by Dr. Masel and Dr. Blowers at the University of Illinois.

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