While I am not being able to work the equations, let me rephrase the question a bit better.
Given a heat exchanger surface and constant mass transfer rate (ie, 1 m2, 1 kg/s of air),
does convective heat transfer coefficient change significantly with air density?
Can a simple rule of thumb be...
AlmostRetired,
ye, I am interested in heat transfer in heat exchangers (forced convection).
I have seen many examples of conductive heat transfer examples here and there, but they never mention pressure, which I find puzzling.
I am not interested in an specific pressure, just in the general...
1503-44,
so, If I am understanding ok the Prandt number, Air heat transfer is dominated by thermal diffusivity (as air Prandt's number is 0.71).
And that situation does not change with pressure, as I have seen in the formulas and tables.
So I am checking thermal diffusivity of air at varying...
Hello,
I am here to ask a simple, basic question about heat exchangers which is puzzling me.
Whenever I look for approximated values for convective heat transfer coefficients, I just find tables depending of phase of matter (liquid/gas), type of flow (laminar/turbulent) or type of gas...
