Category | Assignment | Subject | Management |
---|---|---|---|
University | Memorial University | Module Title | ENGI 9121 Advanced Safety, Risk and Reliability Engineering |
Case 1: Consider the flash distillation problem as illustrated below. The liquid and vapour under consideration are flammable. A high level of liquid in the vessel may result in over-pressurisation of the vessel.
The following basic process control systems are implemented in the process:
A high-pressure alarm (not shown in the diagram) is also implemented to alert the operator to take appropriate action.
If the operator fails to respond, a pressure relief valve is installed (not shown in the diagram) to release the materials in the vessel to the atmosphere and thus prevent the vessel's failure.
Do You Need ENGI 9121 Assignment of This Question
Order Non-Plagiarized AssignmentThe management specifies the safety target level as the "probability of release to the atmosphere to be not greater than 10-4per year". The release into the atmosphere can cause serious permanent injury to one or more persons and can result in the death of one person, as well as causing temporary damage to the environment. The vessel is not isolated, and plant personnel are always exposed to possible accidents. There are no other measures in place to avoid or minimise the exposure of plant personnel. The frequency of the occurrence of release can be considered low.
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