Search
Now showing items 21-30 of 113
Options for teaching Operational Process Safety
(Mary Kay O'Connor Process Safety Center, 2019)
Over several years the IChemE Safety Centre (ISC) has been working with universities around the world to drive improvement in how process safety is taught. This has seen the ISC release guidelines on desired learning ...
Opportunities and challenges of high-level visualization technology in process operations and safety
(Mary Kay O'Connor Process Safety Center, 2019)
The rapid development in high-level visualization technology in recent years has created tremendous opportunities for enhancing all facets of industry. Augmented reality (AR), mixed reality (MR), and virtual reality (VR) ...
More effective use of Leading Indicators
(Mary Kay O'Connor Process Safety Center, 2019)
Leading indicators are all the rage for managing not only Process Safety but all aspects of EHS performance. However; chances are, you are not truly harnessing the power of leading indicators because you do not clearly ...
Refrigerated tanks base plate-heating hazards – A case study of Ethylene tanks
(Mary Kay O'Connor Process Safety Center, 2019)
Cryogenic storage tanks are commonly used for the storage of refrigerated liquids at sub-zero temperatures. Such tanks are often of double-wall construction with thermal insulating material in the annular space between the ...
Comparison of Explosion Methods for Large-Scale Unconfined Elongated Explosions with Propane and Methane mixtures
(Mary Kay O'Connor Process Safety Center, 2019)
Existing methods for flame propagation and deflagration to detonation transition (DDT) prediction can be divided into three main categories: empirical models, phenomenological and Computational Fluid Dynamics (CFD) based. ...
How Dynamic Simulation Helped Mitigate Vapor Disposal System
(Mary Kay O'Connor Process Safety Center, 2019)
Siemens recently completed a refinery wide pressure relief and flare analysis for two major refineries in the United States. Major deficiencies were identified on the existing flares if the relief loads calculated using ...
How to Improve the Trust in Safety Related Instruments
(Mary Kay O'Connor Process Safety Center, 2019)
Yearly Instrument Protective Functions (IPF) reports for safety critical elements are common practice in the oil and gas and petrochemical industry. Including mean time between failures (MTBF) calculations and fail to ...
Storage Tank Overfill Vapor Cloud Explosions – Science, Causes, and Prevention
(Mary Kay O'Connor Process Safety Center, 2019)
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 ...
A New Look at Release Event Frequencies
(Mary Kay O'Connor Process Safety Center, 2019)
Within the context of a quantitative risk analysis (QRA), the two main constituents used to describe petrochemical risks are, and have always been, consequence and probability. The consequences of hazardous material accidents ...
How to Treat Expert Judgment? With certainty it contains uncertainty!
(Mary Kay O'Connor Process Safety Center, 2019)
To be acceptably safe one must identify the risks one is exposed to. It is uncertain whether the threat really will materialize, but determining the size and probability of the risk is also full of uncertainty. When ...