I am in process of calculating depressurization rate for condensate dehydrator. LPG condensate composition as follows: Component Mole. Dear all I have to simulate a depressurization of a plant gas working at 69 barg ( Pdesign=74 barg) with Hysys. I know that I have to do 2. HYSYS Depressurisation Example – Free download as PDF File .pdf), Text File . txt) or read online for free. Depressurization Hysys.

Author: Bagrel Vudolar
Country: Nepal
Language: English (Spanish)
Genre: Music
Published (Last): 9 November 2012
Pages: 387
PDF File Size: 11.56 Mb
ePub File Size: 7.28 Mb
ISBN: 998-9-92851-929-5
Downloads: 11597
Price: Free* [*Free Regsitration Required]
Uploader: Gataxe

Download Now White Paper: The following table indicates recommended volumes for partially filled vessels. I work at AspenTech. Click Here to uysys Eng-Tips and talk with other members!

If the conditions of the system at settle out are such that the vapour is superheated, HYSYS will not allow a liquid inventory. Enter your search terms Submit search form. The user is required also to specify an orifice discharge coefficient.

Their equations are more advanced than some of the others and can automatically handle choked conditions. Once the utility has run, users can go to the “Performance” “Summary” page to view the results. Individual companies may deviate from this figure, so do check. This may be disproportionate to the total vessel volume.


To determine vapour generation API recommends that you only take into account eepressurization portion of the vessel that is wetted by liquid up to 7. For non-controlled depressuring system, other equations such as [Relief], [Supersonic], [Subsonic] and [General] may be used.

It should be used when the valve throat area is known. Total wetted surface only calculated up to 7. To account for piping or head volume contributions, a small depressurrization can be added to the height or length of the vessel if the user so requires. To do this you will have to force the relief valve to be open at all times.

Depressurisation: A Practical Guide HYSYS | PEDRO DIAZ –

Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. In simple terms you can think of this as the work that the fluid in the vessel does to expel the material that is leaving.

The different modes and their respective equations are described here. This could represent a worst case scenario. Therefore, in field units, C1 will be multiplied by the environmental hyxys, F and C2 will 0.


It hyyss be a good idea to reduce the step size if the flow rate is significantly larger than the volume or if the vessel depressurises in a relatively short amount of timesay 1 minute. Lowered temperature even negative is expected. The seven available valve types are described in the sections that follow.

Depressurization By Hysys

Download Now Defense manufacturing is all about project manufacturing and project accounting. It is divided into three sections: Community Forum Software by IP. This can occur when the upstream pressure is less than twice the backpressure. It’s easy to join and it’s free. Make sure the template dyndepressuring.

It is possible to remove variables by depressurisation the appropriate variable in the “Active” column. C1, C2 and C3 must be specified. C3 Liquid Volume 1 0. Pressing the “View Spreadsheet…” button will open the spreadsheet.

If the feed stream hysgs two-phase, the equilibrium composition of the liquid will be calculated.

Author: admin