I'd expect the tensile stress @20 °C and @ 35 °C to be almost the same. In any case the formulas reported in EN 13480-3 refer to Rp,1.0 and not Rp,0.2.
As suggested by XL83NL, you could take a look to EN 15515-4, which as standard reference for X5CrNi18-10 (EN 1.4301EN) addresses to EN 10269...
Mass flux varies linearly from the section 1 onward, as you are going to have part of the mass flow leaving the header at each branch. In order to have even flow distribution you have to minimize the pressure drop along the header in comparison to that of the branches.
jangolobow,
Effect of pressure? I'm not clear what you mean specifically.
You can use tables from EN 10088-3 where you can find mechanical properties of the material of interest at room and at different temperatures, but you're not going to find any mechanical properties vs pressure tables.
I suggest you to put your hands on the literature quoted in the references.
The definition for the modified Reynolds number is:
Re(mod) = Re* (b/L)
For a high aspect ratio (high H/b) the hydraulic diameter is:
Dh = 4A/P = 4 (H*b)/[2(H+b)] ≈ 4H*b/(2H) = 2b
There’s anyway a difference by a...
Take a look at the following link (reference is ISO 5167-1)
https://nfogm.no/wp-content/uploads/2019/02/1996-24-The-Orifice-Plate-Discharge-Coefficient-Equation-Reader-Harris-NEL.pdf
Not my field of expertise, anyway the attached file could give you some guidancehttp://files.engineering.com/getfile.aspx?folder=3f36e29a-a376-4d16-8ec1-c817de9391b9&file=TAPPI-TIS410-14.pdf
You have to calculate the back pressure on your condensate line (0.5 bar for height difference + pressure drop due to friction from the steam trap to the tank + pressure drop due to fittings). Then use steam tables to evaluate saturated liquid temperature. Please note when sizing condensate line...
First thing
L K,
First thing.
Do you know for sure the correlation used by CFX is the one reported by Incropera?
Using Churchil & Ozoe correlation for constant heat flux case and with your data I got h = 5,4 W/(m2 K).
Take those correlations for what they are, namely best fit of experimental...
HI 9.8 and specifically para 9.8.7.2 reports the following relationship:
S/D = 1.0 +2.3Fd
where:
S = submergence
D= Inlet O.D.
Fd = V/(gD)^0.5 Froude number
g = Acceleration of gravity
V = velocity at inlet bell face
With your numbers S is slighly more than 8"
