only other comment to add is how easy it is to construct; the welder might not be too happy about trying to get an electrode into a crevice and somehow make a compliant but weld with a mirror and an electrode bent at 70deg to fit... I'd always run something like this past a welder to make sure...
I've seen the Emerson product deployed, works well, but cost is likely higher than the i-alert system.
https://www.emerson.com/en-au/automation/asset-performance-management/asset-monitoring/condition-monitoring/online-condition-monitoring-mechanical-assets
There is probably half a dozen...
I guess there are 2 issues here, 1) Contract acceptance 2) Plant performance., but I'll preface this with a few points
A) From my experience with CSCC -> It's not an exact science, the NACE curves should be considered guidelines with quite wide bands. Depending on the fluid and other...
...matters for durations longer than a few weeks...
From memory I used Inconel 601, might not be the best?!?, but it was available on short notice.
*Also in my case the consequence of failure wasn't a problem, so didn't have to take too much care. However, if the tube side product caused some...
Here's a random paper that describes it fairly well. https://www.flowconditioner.com/wp-content/uploads/2020/07/FFC-Whitepaper-3_CPA.pdf
In practice there is a boundary layer, you will never get an equal velocity profile across the full cross-sectional area, however you can improve it /flatten...
Hi Team,
I went down a rabbit hole a little while ago about using instrumentation to prove a centrifugal pump is primed. Intent is to have interlocks or alarms to prevent dry running of said pump after a maintenance changeout and / or suction piping lineup changes. I'll note the question for...
You're unlikely to be able to model this in any meaningful way. Unless the specific brand of thumbscrew supplier has completed testing to determine the allowable 5 year vibration level on a faster setup close to your proposal (which is highly unlikely).
In practice, I'd suggest applying a...
In my experience, not a problem, extensive experience with hard slurry like scales that form inside pipes, sometimes several inch's thick. This is assuming you are measuring from the outside. If you are measuring from the inside, it will be a problem.
...nightmare in a slurry service and agree with the approach to avoid using one.
As a general concept Warman slurry pumps are built "like a brick sh*thouse" as the saying goes, so I wouldn't be too worried about wear, random vibrations, flex etc. At the end of the day, the pump shaft seal will...
I just had a look, and I'm thinking that the Australian Commitee copied the formula wrong :S, I have come across that before in some obscure clauses.
From a fundamental point of view, the basis of these calcs is that a pipe will try and "straighten out" when subject to internal pressure, and as...
I'd suggest also not to rule out product induced cracking. When I First read it, my mind when straight to stress corrosion cracking, which usually presents itself as traverse cracks, always initiating from the inside surface. In my industry this is a key damage mechanism, in particular from...
Google tells me that
ASTM A668/A668M-23
1.6 Appendix X1 lists the current classes corresponding to the various classes of Specifications A235, A237, and A243, which have been superseded by this specification.
Maybe start there
If you need to original, I had a look at my organization's...
...on Trial and Error / Testing around 100 years ago give or take, not on calculations. So you are unlikely to find an answer based on calculations*** for the question "At what pressure will it start to leak". There are answers to a slightly different question "what is the max hydrotest...
MY thoughts
I'm assuming this is actually a torque arm / physical thing, and not a calculated value via a VFD / VSD / VFVV Drive
Things it will probably tell you;
1) Long term efficiency trend, i.e power output vs electrical power input, if the efficacy drops off, could be a sign of some sort...
It's designer choice.... but having being in operating plants for a long time, the most "useful" version is to define 0 Deg as the manway door / maintenance entrance and work clockwise from that, when looking down from above. (when doing tank inspections, very annoying to have to find plant...
what I've come across
Practical considerations
1) Ease of maintenance for things that a regularly un-bolted
2) concerns over corrosion of studs / flange itself (can be somewhat mitigated by coatings / material choice)
3) Ease of leak identification if left un-insulated.
Technical / Design
1)...
Not reliably, technically it could work, but the temp change is orders of magnitude lower than background noise levels (think issues like different surface colors, sun vs shade, and a whole host of other factors related to how thermal cameras work). But have seem it done extensively to locate...
...have never seen anyone take credit for its thickness in the pressure boundary calcs, it has always been treated as an extra corrosion allowance. *There maybe some section of a code somewhere that allows it, but I've never seen anyone do it.
2) Given the vessel is already above tmin, the...
...wound gasket, or even better as you suggest, if the flange is not needed for maintenance, remove it completely and put in a welded pipe section.
*I'm making the assumption that someone will do the required pipe stress analysis / flexibility analysis if such changes were to occur.
Andrew...
