Process Systems Enterprise Limited
email this page print this page
pdf overview


Operating companies and EPCs alike are facing challenges in driving down the capital cost of flare systems while ensuring that they remain within the requirements of the relevant standards.

The API-521 standard says that dynamic (as opposed to steady-state) simulation provides a means "to better define the relief load and improve the understanding of what happens during relief". But how is this to be achieved in practice?

PSE's new gFLARE product and depressurisation service represent a step-change in the state-of-the-art for relief system design. In this seminar you will see how gFLARE's dynamic analysis and detailed temperature modelling capabilities now make it possible to address all of the challenges listed below.

Seminar details

This free seminar provides a detailed look at the facilities described here, with opportunities for discussion and comment.

You can see the detailed agenda here

Target audience Process & safety engineers involved in flare system design and analysis and depressurisation / blowdown analysis, as well as their senior technical management.
Outline PSE's new gPROMS Flare dynamic modelling environment represents a step-change in the state-of-the-art for flare system design. The seminar will show how it is easy to incorporate dynamics, upstream process and detailed metal temperature modelling to minimise capital cost within safety constraints. Includes demonstrations.
Date Friday 1 October 2010
Time 11:00-15:30, including lunch. Registration 10:30
Location Yokohama Creative City Centre
Cost FREE
Presenters Dr James Marriott, Head of Applications Engineering

Challenges

Some of the key challenges facing relief system designers are how to:

  • eliminate flare system overdesign resulting from use of unrepresentative peak flow loads
  • investigate the potential for staggered relief of units in order to reduce peak flare load
  • understand where and to what extent low temperatures will arise in order minimise the amount of high-cost alloy materials required for construction
  • understand the extent to which high temperature fluid can propagate within the flare network in order to provide sufficent and appropriately-sited expansion loops

All of these challenges have to be addressed while ensuring that key system constraints – for example, maximum pressure and Mach number requirements – are met at all times.

How gFLARE addresses these

gFLARE uses high-fidelity, API-521-compliant models within the powerful gPROMS modelling and optimisation framework to address all of the challenges listed above.

It provides a step change beyond the current state-of-the-art in flare system design tools through the ability to consider simultaneously:

  • the full physical scope – both flare system and upstream process, where necessary
  • full pressure-flow dynamics, to allow realistic transient analysis of capacity, including sequential events
  • full 2-D and 3-D metal temperature modelling for critical areas of piping and equipment

gPROMS Flare can be used both for flare system design and operational analysis and troubleshooting of existing flare systems.

Its advanced optimisation capabilities make it possible to calculate quantities of interest, such as available flaring margin, directly rather than by lengthy trial-and-error analysis.

State-of-the-art depressurisation

PSE's advanced depressurisation capabilities provide detailed dynamic modelling of the rapid depressurisation ("blowdown") of high-pressure vessels, a key element of the safety analysis of oil & gas production plant and other high-pressure installations.

PSE. Advanced Process Systems Engineering tools