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Development of a Company-Specific Consequence Severity Model to Improve Efficiency and Consistency in PHAs
(Mary Kay O'Connor Process Safety Center, 2018)
The consequence severity of hypothetical release scenarios developed during a Process Hazard Analysis (PHA) can be difficult to evaluate consistently. Even though most companies now have clear and concise consequence ...
A Refreshing Take: Analysing Accident Scenarios through Causal Network Topology Metrics
(Mary Kay O'Connor Process Safety Center, 2018)
Accident causation investigation and even more hazard scenario identification are troubled by the complexity of interactions between three elements in a process facility: People, Plant and Procedures. Interactions are of ...
Transient Large-Scale Chlorine Releases in the Jack Rabbit II Field Tests: Estimates of the Airborne Mass Rate for Atmospheric Dispersion Modeling
(Mary Kay O'Connor Process Safety Center, 2018)
Sponsored by the U.S. Department of Homeland Security, the Defense Threat Reduction Agency (DTRA) of the U.S. Department of Defense, and Transport Canada, the Jack Rabbit II tests were designed to release liquid chlorine ...
The Importance of Properly Determining Consequences of Process Safety Incidents
(Mary Kay O'Connor Process Safety Center, 2018)
The purpose of this presentation is to communicate the importance of properly and consistently determining the consequence of potential process safety incidents. There are different methods to determine consequences such ...
Distinguishing Offshore Drilling Safety Improvement through Engineered New Technologies versus Mandates & BAST – MPD Example
(Mary Kay O'Connor Process Safety Center, 2018)
Offshore drilling processes (personnel, methods & equipment) increase in complexity, yet improve continually by implementing new technology that brings enhanced safety via wellbore management. MPD – managed pressure drilling ...
Evolutionary Themes from ISA 84 to ISA 61511
(Mary Kay O'Connor Process Safety Center, 2018)
ANSI/ISA 84.00.01 was the second edition of ISA standard to address safety instrumented systems for the process industry sector and was recognized by OSHA as a good engineering practice within process safety management. ...
PHA Guidance for Correlating H2S Concentrations in Process Streams to Severity of Adverse Health Outcomes in the Event of a Leak
(Mary Kay O'Connor Process Safety Center, 2018)
Process hazard analysis (PHA) teams are responsible for determining and categorizing the potential impact of a loss of containment. For streams containing hydrogen sulfide (H2S), the health and safety consequences of a ...
Systems-focussed risk and process safety education
(Mary Kay O'Connor Process Safety Center, 2018)
Risk management and safety are at the core of performance in the process and manufacturing industries. Global studies by major consultancies show that mature risk management drives performance. That maturity considers a ...
A Risk-based Dust Hazard Analysis (DHA)
(Mary Kay O'Connor Process Safety Center, 2018)
Combustible dusts are finely divided particles that present an explosion hazard when suspended in air. Dust explosion may become more severe in a confined space, especially due to the occurrence of second dust explosion. ...
A Hazard Identification Framework of Complex Systems
(Mary Kay O'Connor Process Safety Center, 2018)
A chemical process facility is a highly complex system. The interactions among a small group of the functions, such as process, equipment, human, organizational functions, could split, merge or couple leading to a complex ...