Equivalent hydraulic diameter VS equivalent heated diameter
Posted by Syeilendra Pramuditya on November 23, 2009
Please let me know if you found any mistake on this post, thanks!
Get confused about the difference between “equivalent hydraulic diameter” and “equivalent heated diameter” when doing your work about nuclear reactor thermal hydraulic analysis? I think it will be easier to be understood if I use example rather than give you formal definitions, check this out man..
Consider this case: three heater rods are immersed into a cylindrical duct filled with water, the heater rod radius and duct radius are Rrod and Rduct, respectively, as sketched in the following figure:
The equivalent hydraulic diameter is..
And the equivalent heated diameter is..
Source: Nuclear Systems I, Todreas-Kazimi, page 444 & 453.
What do you think dude..?