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Boiler and Pressure Vessel engineering | Forum profile
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Forum profile page for Boiler and Pressure Vessel engineering on http://www.eng-tips.com.
This report page is the aggregated overview from a single forum: Boiler and Pressure Vessel engineering, located on the Message Board at http://www.eng-tips.com.
This forum profile page summarizes the general forum statistics such as: Users Activity, Forum Activity, and Top Authors, which are reported in either a table or graph below for a given reporting time period.
Additional forum profile information for "Boiler and Pressure Vessel engineering" on the Message Board at http://www.eng-tips.com is also shown in the following ways:
1) Latest Active Threads
2) Hot Threads for Last Week
Warning: These statistics are generated using 'best efforts' and can experience delays and reporting errors at times. Please note that such statistics do not constitute a forum's popularity and/or exact posting volumes at any given reporting period.
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Posting activity on Boiler and Pressure Vessel engineering:
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Week
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3 Months
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Threads:
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24
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121
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413
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Post:
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44
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958
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Boiler and Pressure Vessel engineering Posting activity graph:
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Top authors during last week:
user's latest post:
Sight Glass
Published (2009-11-25 14:56:00)
Good decision!
user's latest post:
MDMT Questions
Published (2009-11-29 01:22:00)
( UCS-66.1. Technically, rneill's criterion is still not fully precise because it is operating solely on stresses arising from pressurisation. Other contributing mechanical stresses also need to be assessed if one is being accurate. , )
user's latest post:
OTSG
Published (2009-11-22 08:07:00)
Sorry, what "OTSG" stand for? Ganfoss
user's latest post:
Vessel calcs review
Published (2009-11-23 07:05:00)
Of course above is true for relatively small vessels for tall slender towers you need to be careful of deflection, vibration analysis,lifting design,shipping saddle.
user's latest post:
Vessel calcs review
Published (2009-11-23 14:22:00)
Dear All, Thank you very much for all your responses. I did get different response from each member and I did approach my boss with regards to the level of review needed. I was told to check the what bhushan76 on this forum recommended to review. I was not satisfied with my boss so I approached this forum. After reading all the responses I will do my best to follow the advice of all forum members. Thank you
user's latest post:
OTSG
Published (2009-11-25 22:27:00)
Thanks for your response. Please explain steam flood applications.
user's latest post:
Steam leak calculation
Published (2009-11-25 08:26:00)
http:/ /books.goo gle.com/bo oks?id=C-a vw0u-4AcC& amp;pg=PT5 18&lpg =PT518& ; dq=calculation+for+determining+the+rate+of+steam+leakage+in+a+pipe&source=bl& ots=bTKM53t45u&sig=Vg8XIPcqsCD2ASIj6eSZiX0cH1k&hl=en& ei=JjANS5CON8rVlQe03PTBBw&sa=X&oi=book_result&ct=result&resnum=5& ved=0CB0Q6AEwBA#v=onepage&q=&f=false
user's latest post:
Steam leak calculation
Published (2009-11-25 09:53:00)
Dear metengr, Thank you very much for your tip!! Perfect. I will compara it with the methods that i have here, but i think that this one is very straight and very well explained. Thanks once more!!
user's latest post:
MDMT Questions
Published (2009-11-28 16:19:00)
Rneill, Where did that 35% of MAWP for "pressurization" come from? Just curious, I have never heard of a value for that concept.
user's latest post:
Code enforcement future
Published (2009-11-30 18:20:00)
A small contribution to the discussion, just in case has anyone missed the summary (attached);- Cheers, gr2vessels http://files.engineering.com/getfile.aspx?folder=55b267f1-5dae-436e-bfe5-fc
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Latest active threads on Boiler and Pressure Vessel engineering::
Started 1 day, 11 hours ago (2009-12-01 18:34:00)
by roca
151 = Killed or Semi Killed 161 = Si Killed Suggest you get a copy of the standard
Started 1 week, 4 days ago (2009-11-21 13:48:00)
by metengr
Quote: This may sound off-the-wall, but I have it on good authority that Sec VIII Division 1 will become less common and Division 2 will become more standard over the next few years. It is an off the wall statement.
Started 5 days, 15 hours ago (2009-11-27 14:20:00)
by eliebl
Started 2 weeks, 1 day ago (2009-11-17 12:09:00)
by rneill
This seems to be a variation of the old argument that since I'm not going to overpressure, impact load, or otherwise fail my vessel, it doesn't matter if I operate below the MDMT ... Code does not permit " pressurization" at a temperature below the MDMT for a vessel - period. That would be a flagrant violation of code requirements on it's own so I'm not sure there is much point to talking ...
Started 1 week, 3 days ago (2009-11-22 08:07:00)
by Ganfoss2
Sorry, what "OTSG" stand for? Ganfoss
Started 1 week ago (2009-11-25 19:13:00)
by SJones
( It is correct and is accounting for the various microstructural developments that can occur between thick and thin welds. You will also note the other restrictions in items a\) to e\) of the same subclause. The NACE document is, within reasonable tolerances, keeping it to "you weld it as you qualified it" since ASME IX is not concerned with phase balance and corrosion issues. , )
Started 1 week, 3 days ago (2009-11-22 11:47:00)
by Crompto29
For vessels used in human occupancy we use the ASME PVHO-1:2007 code. It is solely for Pressure Vessels for Human Occupancy (PVHO) so I am sure there will be a more appropriate code for your application.
Started 1 week ago (2009-11-25 07:38:00)
by davefitz
I do not have any official calculation procedure, but from past review of choked flow calculations thru condenser sparger pipes, one can say: The steam leakage would be acoustically choked flow,the discharge coeficient is about 0.82 for cracks whose diameter is laarger than the pipe thickness. But realistically, a crack usually has a clearance or effective diameter much smaller than the pipe ...
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Hot threads for last week on Boiler and Pressure Vessel engineering::
Started 1 week, 4 days ago (2009-11-21 13:48:00)
by metengr
Quote: This may sound off-the-wall, but I have it on good authority that Sec VIII Division 1 will become less common and Division 2 will become more standard over the next few years. It is an off the wall statement.
Started 1 week ago (2009-11-25 07:38:00)
by davefitz
I do not have any official calculation procedure, but from past review of choked flow calculations thru condenser sparger pipes, one can say: The steam leakage would be acoustically choked flow,the discharge coeficient is about 0.82 for cracks whose diameter is laarger than the pipe thickness. But realistically, a crack usually has a clearance or effective diameter much smaller than the pipe ...
Started 5 days, 15 hours ago (2009-11-27 14:20:00)
by eliebl
Started 1 week, 1 day ago (2009-11-24 11:23:00)
by unclesyd
Checkout you sketch and repost as Adobe is show an unrepairable error.
Started 1 week, 5 days ago (2009-11-20 07:55:00)
by metengr
For a slow learner like myself what is AGO service???
Started 1 week ago (2009-11-25 19:13:00)
by SJones
( It is correct and is accounting for the various microstructural developments that can occur between thick and thin welds. You will also note the other restrictions in items a\) to e\) of the same subclause. The NACE document is, within reasonable tolerances, keeping it to "you weld it as you qualified it" since ASME IX is not concerned with phase balance and corrosion issues. , )
Started 1 week, 3 days ago (2009-11-22 08:07:00)
by Ganfoss2
Sorry, what "OTSG" stand for? Ganfoss
Started 1 week, 3 days ago (2009-11-22 11:47:00)
by Crompto29
For vessels used in human occupancy we use the ASME PVHO-1:2007 code. It is solely for Pressure Vessels for Human Occupancy (PVHO) so I am sure there will be a more appropriate code for your application.
Started 2 weeks, 1 day ago (2009-11-17 12:09:00)
by rneill
This seems to be a variation of the old argument that since I'm not going to overpressure, impact load, or otherwise fail my vessel, it doesn't matter if I operate below the MDMT ... Code does not permit " pressurization" at a temperature below the MDMT for a vessel - period. That would be a flagrant violation of code requirements on it's own so I'm not sure there is much point to talking ...
Started 1 day, 11 hours ago (2009-12-01 18:34:00)
by roca
151 = Killed or Semi Killed 161 = Si Killed Suggest you get a copy of the standard
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