134 replies to this topic

[gvdlans]

I knew we would reach 100 posts in this thread at some point...

And for all those freebie hunters roaming the Internet and this forum, once more:

Go up to post #58 or to post #81 and download the copy that is offered there!!!!

No need to ask for a copy in this thread!!!

[trawets]

Thanks for download, real good stuff

I am sorry I'm not a chemical engineer, I'm a imeche type guy but its just as valid for us
ThankX again

[SFLYNN]

Art

I apprecdiate that it's some time since this 'discussion' took place but I would appreciate a copy of your spreadsheet.

At present I am working in Qatar & there have been some problems experianced with one of the newly constructed tanks

Best reagrds
Sean

[Art Montemayor]

Sean:

I appreciate your request and would repeat what has been given in a couple of prior posts:

Go to Posts # 81 or #58 and you will find the downloadable Excel WorkBook on Post #58. Post #81 was "invented" to make life easier for those who don't read the entire thread or are confused. The WorkBook is found on Post #58.

[kader_007]

Thanks MonteMayor, great job you've done, I am not involved in process engineering but good stuff to read allways for a mechanical engineer working in the oil business.
so Bravo

[maldini]

hii am a process eng. working in egypt and i would like know if there some thing says that there is a specific value or difference between breather valve and emergency vent set pressure

[JEBradley]

Not wishing to cause offence... but can we consider stopping the practice of inviting people to submit their emails in order to receive a file.
This particular thread was one of the best I have read, but it has sadly been hijacked.

I will open another thread and hope the contributors will continue. Thanks

[ricky]

Dear Art,

Since i'm a newbie here, let me introduce myself.
I am a process engineer who currently working in an EPC company. In current project, i have to design correct breather valve (PVRV or PV vent, some might say).
I have also downloaded your spreadsheet, and it's very great, really helps me understanding the cases (some of them i haven't heard before) which must be considered during venting.

I have a question, does API2000 works with floating roof storage tanks?
In my opinion, the only case which must be considered is thermal. Liquid movement (as per API2000) is not needed to be calculated since the roof will float and sink based on actual liquid level.

Therefore, the tank is a large one (much larger than 180,000 barrels as per API2000) and i actually don't know how to calculate the thermal venting requirement. However, if i assume that solar radiation applies to whole body of the tank (entire roof and shell), the venting requirement would be too great for even 4 breather valves working together. Do you have any suggestion how to calculate the correct requirement? The tank's MAWP / MAWV is limited to 47 mmH2O, as per API650 standard.

Also, is there any connection between sizing breather valve for floating roof and API MPMS Chapter 19.2 (Evaporative Loss From Floating Roof Tanks)?

Thank you in advance.

[sunil_chemical]

HI,

As a Process engineer I am working in Oil and Gas consultancy in Saudi Arabia.
I also glad to take your Excel based sheet. which is very useful. Please send me on my email address

sunil_mamtora@yahoo.com

Thank you

[sanb]

Hi Art:
Can you also furnish me with the Excel Workbook?
My email address is staceyanbarrett@yahoo.com
Thanks much.

[sachindhopade]

hope this helps u
http://www.processcalculator.com/

[ankur2061]

hope this helps u
http://www.processcalculator.com/

Sachindhopade,

Ar you an agent of the above mentioned website or just a plain idiot who doesn't know what he is talking about?

[ina]

Hi Mr Montemayor,

i am a process engineer, working with small company in Malaysia which is doing the relief device evaluations. Currently i am doing the low pressure tank evaluation and i refer to your document as my reference.

i already upload your spreadsheet, it very helpful for me but i have a question on Pressure Transfer Blow-through - from Tank Relief Philosophy word document, quote below:

"Pressure Transfer Blow-through
a) For tanks that are not expected to be unloaded into, the vapor rate is the flow capacity of two (2) 1” by 20 foot utility hoses with a pressure drop of the maximum nitrogen header gauge pressure. One 1” (3/4” ID) by 20’ utility hose can pass 18,825 SCFH of nitrogen."

1. How do you come out with this value :- 18,825 of nitrogen.?

Highly appreciate if you can give me detail explanation or how to get value.

Thank You.

-Ina-

[Elangkoh]

Hi

I am Elangkoh. U can call me Alan. I am a working as a trainee in a ester plant. I desperately need the excel sheet relief valve sizing. I have to design one for isopropanol, methanol, 2-EH and n-Butanol storage tank. You can email it to me on elangkoh@gmail.com

Regards,
Alan

[Ron Parr]

My e-mail address is; ron.parr@fhr.com

I would appreciate a copy of your Excel spreadsheet as well.
Thanks ..

-Ron

[CMA010]

Does anyone know how to size a Vacuum/Relief valve on a storage tank? I looked into API Standard 2000 (appendix C), but that only says that "The size of a vent valve is based on the venting device's tank connection". API RP 520/521 only deal about Pressure Relief Valves...

Determine venting requirements per API STD 2000, EN 14015, or ISO 28300. Contact vendors like EMBA or Tru Valves with that data.

[Selva.sb]

Hello,

I would like to receive your copy of the Excel spreadsheet for the Pressure relief / vaccum relife on the tanks.

Pls send me to my mail ID selva.sb@gmail.com

Thanks and regards,
Selva

[masri]

Mr.Montemayor,
My name is Masrifudin.
I am chemical engineer and I am working in Gas Company.
I live in Indonesian.
I would like to receive your excel workbook about calculations for pressure and vacuum relief of storage tanks.
My E-MAIL is m_masrifudine@yahoo.com

Regards,
Masrifudin

[eagles004]

Art,

I will like to receive your excel workbook for sizing a pressure vacuum for storage tanks

My email address is pon_andres@hotmail.com

Thank you

[Navada]

Dear Montemayer

Appreciate receiving your workbook. I am a Process engr in a fertilizer company.

Rgds.

[sanjayrajora]

Sir,

Please send me the excel work book. I am a chemical engineer working for Essar Refinery, India.

my mail id is sanjay.rajora@essar.com

thanks

Dear Montemayer

Appreciate receiving your workbook. I am a calibration engr in an inspection and testing company.
My email rana_anwar@sgs.com
Rgds.


Anwar

[aju_1807]

Mr. Montemayor

I would like to get your excel workbook. If possible please email me at
ajaysharma_2001@rediffmail.com or ajay.sharma@petrofac.com

[djack77494]

Have any recent posters bothered to actually read the post? This thread should be closed. There's nothing more to be said. Clear directions have already been provided as to how to download the oft-requested file. If you have other matters to discuss, start a new topic.

Edited by djack77494, 18 February 2010 - 06:04 PM.