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Thanks guys for the response, I think I'm getting a better handle on the situation. I believe I was wrong to even think of doing an orifice calculation. I actually found an example problem in one of my old textbooks. When I followed the text's example (it uses the Bernoulli equation with...

We are to assume the length of the pipe @ 100 ft for bidding. Also, I believe the exiting fluid is saturated liquid (at least initially). The pressure drop along the way to the blowdown tank is going to make the liquid flash, but I really haven't taken that into account. I was using just an...

Hi all! I have a problem with my calculations. A customer has a boiler operating @ 1385 psi. For blowdown (to atmospheric tank) they intend to open a valve on a line attached to the boiler (connected to blowdown tank) and I'm trying to calculate the maximum flow possible through the 1.5&quot...

Can someone explain to me how the allowable axial stress for a W shape column (being used as a support leg ~ 24" high) is determined? I have two differnt (or maybe the same?) ways, but am not sure which to use. AISC has a table that depends on the value of (K1*L/r). There is a table...

KRH: Actually, I found them in the "Pressure vessel design manual" by Dennis Moss. In previous dealings with this book, I have learned to take his "knowledge" with a bit (quite a bit) of skepticism. Being a typical curious (and cautious) engineer I am wanting (mainly) to...

On the drawing, the effective bearing length looks to be the length of a triangular load (uniformly increasing - greatest on the outside of the base plate) from a point designated as the "pivot point" to the end of the base plate (covering a distance of "Y"). This load is...

I am trying to verify some equations relating to the design of anchor bolts on the saddle of a horizontal vessel in a seismic / wind load design situation. My understanding is that anchor bolt design is governed by one of three load cases including: longitudinal load, shear load, and...

I am trying to verify some equations relating to the design of anchor bolts on the saddle of a horizontal vessel in a seismic / wind load design situation. My understanding is that anchor bolt design is governed by one of three load cases including: longitudinal load, shear load, and...

I am trying to verify some equations relating to the design of anchor bolts on the saddle of a horizontal vessel in a seismic / wind load design situation. My understanding is that anchor bolt design is governed by one of three load cases including: longitudinal load, shear load, and...

I am trying to verify some equations relating to the design of anchor bolts on the saddle of a horizontal vessel in a seismic / wind load design situation. My understanding is that anchor bolt design is governed by one of three load cases including: longitudinal load, shear load, and...

I am trying to verify some equations relating to the design of anchor bolts on the saddle of a horizontal vessel in a seismic / wind load design situation. My understanding is that anchor bolt design is governed by one of three load cases including: longitudinal load, shear load, and...

I am trying to verify some equations relating to the design of anchor bolts on the saddle of a horizontal vessel in a seismic / wind load design situation. My understanding is that anchor bolt design is governed by one of three load cases including: longitudinal load, shear load, and...

I am trying to verify some equations relating to the design of anchor bolts on the saddle of a horizontal vessel in a seismic / wind load design situation. My understanding is that anchor bolt design is governed by one of three load cases including: longitudinal load, shear load, and...

welding1: Thank you so much for the response. Your post was extremely helpful for my understanding of the formula and its origin!

I am looking for a correct formula for the bending stress in the saddle base plate of a horizontal pressure vessel. The current formula I have has incorrect units. fb = [(6*M)/(tb^2)] is the formula I'm using (units of lb/in instead is lb/in^2), where fb = bending stress, M = bending moment...

I am looking for a correct formula for the bending stress in the saddle base plate of a horizontal pressure vessel. The current formula I have has incorrect units. fb = [(6*M)/(tb^2)] is the formula I'm using (units of lb/in instead is lb/in^2), where fb = bending stress, M = bending moment...

I am looking for a correct formula for the bending stress in the saddle base plate of a horizontal pressure vessel. The current formula I have has incorrect units. fb = [(6*M)/(tb^2)] is the formula I'm using (units of lb/in instead is lb/in^2), where fb = bending stress, M = bending moment...

I am looking for a correct formula for the bending stress in the saddle base plate of a horizontal pressure vessel. The current formula I have has incorrect units. fb = [(6*M)/(tb^2)] is the formula I'm using (units of lb/in instead is lb/in^2), where fb = bending stress, M = bending moment...

I am looking for a correct formula for the bending stress in the saddle base plate of a horizontal pressure vessel. The current formula I have has incorrect units. fb = [(6*M)/(tb^2)] is the formula I'm using (units of lb/in instead is lb/in^2), where fb = bending stress, M = bending moment...

Cowtown: If you are getting 1.5 ppm boiler feed water, you need to check the operation of your Deaerator. The industry standard for BFW out of the DA is < 7ppb. I don't have a clue about the reaction kinetics mentioned above, but if it is oxygen limited, you should probably reduce the O2...