Netflix is releasing a documentary as well this Wednesday; not sure if it'll be significantly different or tell it from a different perspective.
Josh Gates putting together all the BS Stockton was selling like we've done 53 dives (49 were on the other hull) and getting so upset after the test...
The surge anticipating valve seems to be a hydraulically actuated valve, similar to Cla-Vals used in utility/fuels piping systems. it probably senses changes in pressure and responsds, pretty neat.
With regards to #2, most industry pumps (at least in my experience) are not API 610 pumps where most clients/projects don't want to pay for the extras associated with a 610 pump. The 610 pumps I've dealt with all had nozzle loads that matched the specifications table. Non API 610 pumps commonly...
I use Caesar II so my terms will be from that program, they all vary slightly.
In my experience using Caesar II, I generally stick to matching the stated thermal growth of the nozzle (ie, at 400F it will grow up 0.25" and laterally 0.125" or something) by inputting it as a displacement rather...
I think there's a terminology issue here. Non-spring supports in Caesar II are called rigids (clevis, rollers, shoes, etc all are rigids) while spring supports are hangers. A rigid +Y representing a clevis will still move laterally (typically check for 4 deg rod angle if its tight) and show lift...
If you're just doing relatively simple stuff, making a quick calculator based off Crane TP #410 or using any of the online calculators available would be your cheapest bet.
Previously you may have had something like:
Case 1 = Operating Case (support lift offs but no allowable stresses)
Case 2 = Sustained Case (as-installed, no lift offs)
Case 3 = Expansion Case (total stress range, just used for allowable stresses, no lift offs)
Without careful review of Case 1 you...
David,
So in Caesar II that's handled via their "alternate sustained" cases - these are basically sustained stress checks based on your operating case so if you have support lift off scenario, you'll see the increase in sustained stresses in those cases.
The previous general discussion of...
The more information we get the more I'm skeptical of the 1200C limit too. I suspect that's a worst case for the heater, but due to the BTUs the heater lists there's no way they're getting up to that temperature. That'll be a fun conversation with the client.
Thanks for the information Ed. If...
Basically the only reason its still a checkbox/toggle is some clients/industries have very old specifications that specify you must use the "conservative" sustained stress in the allowable stress calculation.
Generally, as computing power has come a long way, industries/clients have allowed you...
They don't have any capacity (in terms of ASME relief valve sizing) since they're not real relief valves. Flow thru the valve increases as dP across the valve rises.
Yeah it's an interesting case and so far I don't see any materials that jump out as long term viable options to me, but we'll be getting a metallurgist report for recommendations and then I assume I'll have to create the material in Caesar to run it. I'm definitely expecting low allowables since...
Does anyone have any experience with very high temperature piping systems, such as 2,200F (1200C) hot? It looks like ASTM B407 and HR-120 alloy may be suitable, but this is pretty far above anything I've done before. ASME B31.3 allowable stress tables seem to only goes up to 1,650F and say...
Yeah in my world (general industrial consulting) our contracts and scopes aren't super technical in terms of locking down specific variables and inputs like that, so we normally have to establish those kinds of parameters after we get the job.
I mean ultimately it's up to you if you want to sue him for stealing your plans (as he plainly did). You seem very hesitant/reluctant to sue, probably because courts and lawyers are a nightmare, so if you've resolved it to your satisfaction and don't want any money that's your prerogative, but...
XL, in my world (general heavy industry consulting), we typically discuss this overtly with the client on projects. Like okay we understand the equipment and piping is rated for 500F but it operates at 300F and would need serious modifications to get there - do we run the analysis at a...
Protecting a nitrogen system, if you're using B31, still requires an ASME relief device. I'm sure the regulators/reliefs on nitrogen and propane bottles are different, but if its a piping or tubing system I don't understand how it qualifies.
