New Approach In Plant Wide Disturbances Detection And Diagnosis

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detect any abnormality/ performance deterioration in heat exchanger, control valve and pump at its incipient stage. This system is based on a statistical data driven modeling technique called "Projection to latent Structure (PLS)". This system compares the actual equipment performance with PLS based model output on real time basis. In case of any abnormality actual performance will deviate from model output and will send an auto generated warning e-mail to concern operating person/engineer. This fault detection system is developed in EG plant (UNITED) to assist engineers in understanding and assessing process equipment healthiness status in real time basis and responding quickly to abnormal events thereby enabling processing plant to maintain operational integrity. This generalized intelligent software can be useful and extend to any other process plant also.

INTRODUCTION

Cut throat competition, open global market and shrinking profit margin forced the process industries to ...

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for process monitoring status, detecting abnormal events, diagnosing the source causes and administering proper intervention to bring the process to normal operation. But, the complexity of the supervision tasks has increased considerably due to the high level of development in process design and control. Intelligent operational support systems is needed to assist process operators in understanding and assessing process status, and responding quickly to abnormal events, thereby enabling processing plants to maintain operational integrity, safety and improve product quality at a reduced cost.

Numerous techniques have been proposed in literatures in the past for real time fault ...

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