Online Properties Databases

Jan 18, 2007 3 Replies

I have been trying to find the convection heat transfer coefficient for mineral oil. Upon doing so I haven't managed to find any good sources for material properties in general. There is a little bit here and a little bit there, but nothing that aggregates a ton of data. Mmmmmm... data.



Where are all the data? In this specific case, heat transfers coefficients.



Thanks, Jason C. Wells


"convective heat transfer coefficient" is not a material property; but a combination of material property, specific geometry, and fluid flow information / assumptions.

With Google, and this search phrase: "mineral oil" "specific heat" "thermal conductivity" ... I get 915 hits that will likely be usable.

Maybe that will help you.

David A. Smith

You might find it helpful to read a paper or a book where some structure has the convection worked out.

Off the top, it seems to me that it ought to be a function of

1) thermal expansivity of the fluid 2) viscosity of the fluid (which would hinder the ascent of a heated "bubble" of fluid.) Mineral oil has a steep curve of viscosity versus temperature, by the way. 3) structural details - is it a chimney like structure or a squat shape with internal baffles?

Brian Whatcott Altus OK

I was trying to do this the academic way but I just couldn't help myself. I whipped up a quick test, put my handy dandy thermocouple to work, and got a number that I can work with. So much for being a bookworm. :)

Later, Jason C. Wells

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