Can someone point me to a method to calculate leg base plates with only two anchor bolts located within the flanges of the I-beam leg. See Bednar 2nd edition Figure 5.5. The value I calculate for C/ab is smaller than the value P1(d/2)/(a^2 b/6) so I cannot apply his method. He notes that in most...
Does anyone know of a method to check the stress in the tubes of a heat exchanger when lifting the unit from horizontal to vertical when there is a thin bellows expansion joint in the shell? I know the tubes will take the load but is there a method to determine the load on the tubes?
Thanks...
Hello
Does anyone have experience with TEMA P-type heads with external packing? I am wondering about:
1. what the initial seating stress should be.
2. how to determine the amount of torque on the bolts when assembling the joint.
3. how much force is generated due to the friction between the...
Hello
I need to work on some old vessels and require the allowable stresses of SA201-A at 100F and 825F and SA201-B at 100F and 500F, Can anyone help?
Thanks in advance
Tomtation
I need to design a 2-pass and a split flow heat exchangers with longitudinal baffles in removeable bundles. Does any one have any details of the seal strips that run along the length of these baffles. Material is carbon steel.
Thanks
Tomtation
Can anyone point me to some good courses on thermal design of heat exchangers? I've taken Heat Transfer I & II in university but would like something more advanced.
I occasionally need to perform FEA for pressure vessel design and have access to Algor MES 2011 and Inventor Routed Systems 2011. I want to know if it would be easier, that is less time to learn and use, Algor to create the models and then run the FEA or create the models in Inventor and then...
According to Section VIII for the definition of boundary length 'L' in UG-28, must I include 1/3 depth of head for a spherical head? I believe you do not but I cannot find anything definitive. Can anyone direct me?
Our Inventor package came with a library for copper tubing and fittings. The library uses standard nominal size descriptions in the generated BOM but we use ACR descriptions, that is, instead of calling out 2" nom tube (actually 2.125" OD), in ACR it is called out as 2 1/8" nom. tube. Is there...
Dear Fellow Members
I am trying to determine why both SB359 and SB75 are listed in Section IIA. Per UG-8(b), I can make integrally finned tubes using any material listed in Section IIA. The allowable stress values for SB359-H55 is substantially lower than SB75-H55. Does anyone know the reason...
I need to check a heat exchanger for heat transfer from asphalt flux to asphalt Type III. Does anyone have the density, specific heat, thermal conductivity and viscosity of asphalt at temperatures from 270 F to 400 F?
Question 1) Shouldn't the heading of the right-most column of Table 5-21b read "Allowable Shell Stress at Anchor Attachment" (as Table 5-21a reads)?
Question 2) The allowable shell stress at anchor attachment is given in Table 5-21b as 25,000 psi which is lower than the values listed for many...
Can anyone point me to some guidelines on designing ribbon blenders to blend powders such as spices, brown sugar, etc? I am looking for both mixing and stress analysis design guides.
Thanks for the help.
I know there exists a code case for the use of glass in sight glasses for pressure vessels. Does anyone know the number of the code case, I can no longer find it?
Thanks in advance.
In API-650 10th edition, article 3.10.2.3: "Roof plates of supported cone roofs shall not be attached to the supporting members". Question 1: Does anyone know the reason for this?
Question 2: Doesn't this exclude the use of external roof stiffeners?
