I have a hard time understanding characteristic length in convection. I am trying to figure out the natural and forced convection inside a tube that contains couple of heating elements. Air is being heated up in this tube. Using Gr/Re^2 can tell me whether forced or natural convection dominates...
This is not homework. I am trying to determine the effect of radiation from the heating element to the inner surface of the shell when air is being heated up. I am assuming that the pipe is perfectly insulated. This is the worst case scenario because the shell's temperature will be maximum since...
I should have mentioned that the pipe is insulated. So only radation and convection inside the pipe is considered. Thanks for all the input. Appreciated
I am trying to calculate the inner surface temperature of a pipe in which a heating element is used to heat up natural gas. There is convective heat transfer from the element to natural gas and also radiation heat transfer from element to the pipe. I am given the temperature of the gas at which...
