Jump to content



Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

Vertical Tank Selection

New Blog Entry

Low Flow in Pipes- posted in Ankur's blog

3

Vessel Depressurisation Flow Rate


8 replies to this topic
Share this topic:
| More

#1 Ranga v

Ranga v

    Junior Member

  • Members
  • 20 posts

Posted 09 November 2019 - 09:24 AM

We have a dryer to remove moisture from the compressed air, During regeneration of media vessel will have to be depressurized need to design a vent size to depressurize in 15 mints .

Vessel cap :15 m3, depressurization pr -: 7 to 0.2 kg/cm2g. temp 35 Deg C

 

I would to build this in excel sheet please provide the guidance



#2 breizh

breizh

    Gold Member

  • Forum Moderator
  • 4,780 posts

Posted 10 November 2019 - 02:17 AM

https://www.vmacair....k-simple-logic/

 

Hi,

The link above may support your query.

Good luck

Breizh



#3 astro

astro

    Gold Member

  • Members
  • 83 posts

Posted 11 March 2020 - 03:08 AM

The Grote equation could help:

https://webwormcpt.b...ual-method.html



#4 Sharma Varun

Sharma Varun

    Gold Member

  • Members
  • 125 posts

Posted 11 March 2020 - 05:25 AM

We have a dryer to remove moisture from the compressed air, During regeneration of media vessel will have to be depressurized need to design a vent size to depressurize in 15 mints .

Vessel cap :15 m3, depressurization pr -: 7 to 0.2 kg/cm2g. temp 35 Deg C

 

I would to build this in excel sheet please provide the guidance

 

As per my understanding you don't need to depressurize till 0.2 kg/cm2g within 15 min, limit depressurization upto 3.5 kg/cm2g in 15 min.



#5 breizh

breizh

    Gold Member

  • Forum Moderator
  • 4,780 posts

Posted 11 March 2020 - 08:20 AM

Hi,

You may be interested with this excel sheet I prepared a few months ago, based on Mike Beychock's text .

This is an old post , Nov '19

Good luck

Breizh 

Attached Files


Edited by breizh, 11 March 2020 - 08:24 AM.


#6 ADR

ADR

    Junior Member

  • Members
  • 19 posts

Posted 19 November 2020 - 11:58 AM

Hello Breizh

 

Is there any procedure / calculation you are aware of for depressurizing a vessel containing liquid (water). We have pressure vessel operating at 110 barg, for maintenance we would like to isolate the vessel and reduce the pressure to atmospheric. Any input would help!



#7 breizh

breizh

    Gold Member

  • Forum Moderator
  • 4,780 posts

Posted 19 November 2020 - 05:18 PM

Hi  ADR,

Sorry I cannot help , let see what others have to say.

Breizh



#8 Pilesar

Pilesar

    Gold Member

  • Members
  • 595 posts

Posted 19 November 2020 - 05:42 PM

Open the drain to release the water from the vessel. What's the problem?



#9 breizh

breizh

    Gold Member

  • Forum Moderator
  • 4,780 posts

Posted 19 November 2020 - 10:42 PM

Hi,

Can you share with us a PID or PFD ?

How big is the tank? Do you have way to drain it and release the pressure ?

Do you have past experience performing the task ?

thanks in advance.

Breizh 


Edited by breizh, 20 November 2020 - 05:37 AM.





Similar Topics