Solution Provided | Assessment of the condensate system and provided recommendations for improvement.
Disciplines | Mechanical Engineering, Process Engineering
Carnac were engaged by the client to conduct an assessment of the current High Pressure Purge (HPP) condensate systems and provide recommendations for future improvements.
Carnac's Scope of Work included:
Assessment of the current HPP condensate system with operational data to calibrate the process model;
Development of a Process Design Criteria (PDC) that defines current process requirements;
Hydraulic Modelling of the HPP system for calibration purposes and then modelling for the proposed future operating state;
Hydraulic assessment of control devices and two different HPP cross-over options proposed by the client;
Assessment of potential over-pressurisation issues; and
Redline mark-ups to PFDs, P&IDs and the Facility Functional Description (FFD).
A Fluid Flow 3 (FF3) hydraulic model was developed by Carnac to test the different operating scenarios specified by the client. The model was successfully used to determine that the proposed methods of operation were all viable. Carnac's recommendations included:
The HPP control valves to be returned to auto-control from manual control;
Reduction of set-point of HPP system, which will result in larger flow rates from the HPP Pumps;
Incorporation of redline mark-ups on PFDs, P&IDs and the FFD; and
A HAZOP to be performed prior to any modifications due to the critical nature of the HPP system.
