Hello,
>
>I have a simple question. If I know the center temperature change of
>some material, the ambient temperature, the heat transfer coeff, area,
>thickness, etc... How can I calculate the surface temperature and/or k
>value (I know how to get surface temperature with k or vice-versa). >
>I tried a method for solving q=h*A*dT=k/dx*A* dT=m*Cp*dT/dt with dT =
>(Ts + Tm)/2 where Ts = Surface temperature and Tm = Middle
>temperature. This seems to give less than desirable results. Is there >a better way?
>
>Thanks.
It would be helpful to know if you're interested in one dimensional results. if k is the thermal conductivity, for example copper 384 watts per meter Kelvin cast iron 47.7 w/m.K
Materials vary in their temperature change, given a certain quantity of heating. For example, copper takes 380 joules per kilogram.Kelvin and the familiar example water, takes 4182 joules per kg.K or in the old units 1 cal per gm.K
?Can you find the material constants?
Brian Whatcott Altus OK