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...
https://www.rva.gov/press-releases-and-announcements/news/update-city-richmond-water-production
I think that page outlines the official statements by the city. Basically winter storm of ice/snow disrupted power to the city's water treatment plant and since Monday morning tens of thousands of...
Hi,
I have a ASME Section II, Part D, Table 1A allowable stress question. I'm looking at an old 2013 binder we but I don't think these stress values have changed in recent editions based on the values I'm seeing in software.
I'm looking at SA-312 TP316L allowable stresses at 600F and there's...
I'm working on a project involving a stainless steel ASME vessel rated for 120 psig designed to Section VIII Div 1. While doing the piping design, we identified high forces/moments on this 3" nozzle due to relief forces.
We sent the loads to the vessel vendor to try to confirm the nozzle is...
My understanding is that Plants can generally design/install things per their own designs on their own property without a PE stamp outside of some items that could impact the surrounding general public. In my role as a consulting engineer working with those facilities, our construction packages...
Most cryogenic supports I've come across have been the off the shelf insulated clamshell type shoes and protective sleeves for clevises and clamps and that sort of thing. I've also seen welded trunnion type anchors with an isolation block between the support baseplate and concrete/steel.
Does...
I've been discussing a relief valve installation with a colleague and questions about inlet piping drop came up. In the existing installation, due to the large flow capacity the flow through a reducing tee sees a high pressure drop. However my colleague suggests the dP being reviewed is only...
I haven't dealt with a ton of fuel tank systems, but I thought NFPA 30 had restrictions on allowing direct tank mounted dispenser/pump system. System I'm looking at involves two tanks, one diesel and one gasoline, each with a tank mounted dispensing system.
After quickly skimming NFPA, it...
https://www.cnn.com/2020/05/22/asia/pakistan-plane-crash-intl/index.html
Approximately 100 on board, at least 11 fatalities so far, suspected engine failure
Does anyone have any literature/resources that provide guidance on how much movement a tank nozzle on an atmospheric vertical tank can allow?
I'm aware of Appendix P in API 650 but I cannot find anything that suggests x amount of radial deflection may be acceptable/normal.
Apologies if this is the wrong forum but I didn't see a KY Pipe/fluid modeling forum.
I"m preparing a model in KY Pipe which I don't have a lot of experience in. It seems to me that there's no fitting option for a reducer or user defined expansion/contraction. Additionally, it seems like you...
I'm reading through a previous thread (Previous Thread). In that thread, a court case is referenced (updated/current link Here.
In this report (page 23, paragraph 4) it says:
Can anyone point me to this specific reference? Under B31.3 section 301.10 Cyclic Effects it points you to F301.10...
I'm working on a project where the project manager made the comment that if an aspect of the piping design doesn't conform the Code (ASME B31.3, normal fluid service here) there's language that the Owner can accept/allow such deviations.
Is this an actual statement in the Code? I've looked...
https://www.washingtonpost.com/energy-environment/2018/11/23/major-trump-administration-climate-report-says-damages-are-intensifying-across-country/?noredirect=on&utm_term=.9a92a0b96e03
The latest report commissioned by the US government (under the Trump administration) re-affirms the...
Previously I've dealt with piping systems in relatively low seismic zones so horizontal acceleration by itself was considered. In a new project with much higher seismic values we'll be looking to combine the horizontal and vertical components. Based off the Caesar II user guide, the load cases...
Hi guys,
I'm working on some two-phase flow applications, attempting to use API 520's omega method. The methods call out an isentropic/adiabatic flash calculation to determine the system specific volume. Unfortunately I don't have access to ASPEN or similar software.
I tried searching the...
Hi guys,
I'm working on a project requiring us to analyze various storage & process vessels to ensure their relief and vent locations are indeed a safe location. While we've received an SDS for all the fluids, most of these datasheets classify the fluid as flammable and then fail to show the...
Hi All,
I'm trying to find some source that discusses how to handle manifolded heat exchangers protected by a single relief valve. We currently have 2 pairs of heat exchangers mounted nozzle to nozzle, with a short section of pipe connecting the pairs. The PRV is located off this connecting...
Hi,
I'm a pretty new mechanical engineer a couple years of college. Recently I've started getting involved in PRV sizing and piping calculations at work. I've been trying to educate myself on the requirements from ASME, API, etc.
API 520 states that the Critical Pressure is the lowest...
