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Now showing items 51-60 of 88
Can we verify and intrinsically validate risk assessment results? What progress is being made to increase QRA trustworthiness?
(Mary Kay O'Connor Process Safety Center, 2017)
The purpose of a risk assessment is to make a decision whether the risk of a given situation is acceptable, and, if not, how we can reduce it to a tolerable level. For many cases, this can be done in a semi-quantitative ...
Storage Tank Overfill Vapor Cloud Explosions – Science, Causes, and Prevention
(Mary Kay O'Connor Process Safety Center, 2017)
The 2009 Puerto Rico incident reminds us that few events are as devastating as a vapor cloud explosion initiated by a tank overfill. Any company that transfers a flammable liquid into a storage tank is vulnerable to the ...
Establishing a Safety Performance System for Pipeline Integrity
(Mary Kay O'Connor Process Safety Center, 2017)
Pipeline incidents recorded by Pipeline and Hazardous Materials Safety Administration (PHMSA), from 1994 through 2013, the U.S. had 745 serious incidents with gas distribution, causing 278 fatalities and 1059 injuries, ...
Institute of Makers of Explosives Safety Analysis for Risk (IMESAFR): A Tolerable Risk Criteria – What Is Safe Enough?
(Mary Kay O'Connor Process Safety Center, 2017)
The Institute of Makers of Explosives (IME), a non-profit safety and security organization founded in 1913, is known for its industry best practices, Safety Library Publications (SLP), some of which have been incorporated ...
Lowering Capital Costs when Evaluating Relief Systems - A Collaborative Approach
(Mary Kay O'Connor Process Safety Center, 2017)
Continued uncertainty in future oil and gas prices has increased the sensitivity around energy related developments, leading to elevated levels of financial scrutiny. This is making owner- operators and Engineering, ...
Bacterial-foraging optimization algorithm for non-hazardous plant layouts
(Mary Kay O'Connor Process Safety Center, 2017)
The following article approaches a safe plant layout design problem based on a bacterial-foraging optimization algorithm. Our approach finds the position in the two dimensional plane for each main process unit and evaluates ...
Addressing the Challenges of Implementing Safety Instrumented Systems in Multi-Product Batch Processes
(Mary Kay O'Connor Process Safety Center, 2017)
Adapting the requirements of IEC 61511 to a batch system can be frustrating, particularly for multi-product units. While a Safety Instrumented System (SIS) for continuous operation is often a straightforward detect-decide-act ...
Containing Hydrogen Deflagrations
(Mary Kay O'Connor Process Safety Center, 2017)
Schroeder and Holtappels (2005) published data on the explosion characteristics of hydrogen-air mixtures, looking at the effect of pressure and temperature on upper and lower explosive limits and the effect of pressure, ...
Conceptualizing Multiagency Emergency Management System as Joint Cognitive System
(Mary Kay O'Connor Process Safety Center, 2017)
Emergency management system (EMS) provides a crucial barrier for the protection of socio-ecological infrastructure from man-made disasters and natural threats. To meet diverse demands from hazardous events, resilience ...
Validation of safeguard protection from potential building explosion
(Mary Kay O'Connor Process Safety Center, 2017)