exida has released a new white paper entitled: Comparing FMEDA Predicted Failure Rates to OREDA - Estimated Failure Rates for Sensor and Valve Assemblies.
Failure rates predicted by Failure Modes Effects and Diagnostic Analysis (FMEDA) are compared to failure rates estimated from the Offshore Reliability Data (OREDA) project for sensor and valve assemblies. Because the two methods of data analysis are fundamentally different in nature, it may be surprising that, when appropriately compared, the results from the two methods are generally quite similar. The nature of the published data for FMEDA and OREDA is explored. The relative merits of each method are discussed.
The implementation of an automatic dosing of the flocculants allows the customer to respect (24h a day, 365 days a year) the limit for phosphate in the outlet and save a lot of money: resulting in less chemicals and sludge production.
White Paper by Exida: Some of the significant process industries incidents occurred by overflowing vessels, including BP Texas City and Buncefield. In many overflow incidents, alarms were designed to signal the need for operator intervention. These alarms may have been identified as safeguards or layers of protection, but they did not succeed in preventing the incident. This paper reviews several overflow incidents to consider the alarm management and human factors elements of the failures.
Intrinsic Safety is the natural choice for all low voltage instrumentation problems. This application note looks at the design, installation, maintenance and repair of Intrinsically Safe equipment and also considers the risks associated with dust.
To help manufacturers and plant and facility operators improve their cybersecurity defenses and better confront the growing dangers of cyberwarfare, the International Society of Automation (ISA) today announces the availability of the ISA Cybersecurity Tech Pack.