On which of the following variables heat convected depends ?
Correct answer: E. All of the above
- A. Power density
- B. Temperature difference between heated surface and coolant
- C. Thermal resistivity, density, specific heat
- D. Gravitational constant
- E. All of the above
Explanation
Convective heat transfer is influenced by the temperature difference and by fluid properties such as density, specific heat and thermal conductivity or resistivity; natural convection also depends on gravity. Thus the intended textbook choice is all of the above.
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