On 2/2/2017 4:13 AM, A. Dumas wrote:
> On 02/02/2017 10:09, A. Dumas wrote:
>> In perfect convective heat transfer,
>
> Argh! That was supposed to say conductive, convective is the OTHER case.
> Sorry.

I don't think what you quoted says what you think it says.  Conduction
or convection don't care what temperature things are at until the
temperature gets so extreme that it causes a change in physical
properties, i.e. liquefying or chemical changes.

I think what the text is saying is that for convection the heat transfer
coefficient will depend on the *difference* in temperature instead of
the ideal case where the temperature delta doesn't matter.

--

Rick C

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