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Flare Network Calculations & Flarenet Modelling
During operation of the plant, there is possibility of an upset or abnormal situation. This may be classified as Fire scenario or Non-Fire scenario (e.g., blocked outlet, control valve failure, etc). In addition, there may be instances when the equipment may need to be vented for operational or maintenance reasons. In order to cater to these scenarios various relief devices such as relief valve, blowdown valve, manual vents, etc are provided on the equipment.
The outlets from these equipment have to be released in a controlled and safe manner. The released fluids may need to separation or burning prior to release into the atmosphere. The outlets from relief devices are commonly connected into a flare network.
How to calculate HIPPS Valve Closure Time
During a process upset due to blocked outlet scenario, the fluid flow to the system may continue to add more fluid into the system. This would result in pressure build-up in system which is higher than its operating or even design pressure. If the equipment gets over-pressurized then it would lead to leaks or rupture from the equipment or piping. The hazardous and/or flammable process fluid would release in an uncontrolled manner, which is also termed as Loss of Process Containment (LOPC). Needless to say that this creates harm to people, assets and environment, which needs to prevented from occurring.
Author
Joy Dass
I have done Bachelor of Chemical Engineering.
I have received Chartership from Institute of Chemical Engineers (IChemE, UK) and achieved the status of Chartered Chemical Engineer (CEng MIChemE).
I have 18+ years of experience working in Process Engineering. I have worked on various phases of engineering projects including Feasibility studies, Concept selection, Basis for Design development, FEED and Detailed Design stages.
I have worked with multi-national engineering and consulting companies in various countries namely India, Oman, UAE and Brunei.
