Webinars provide an opportunity to learn about relevant industry topics from E2G subject matter experts. We strive to share knowledge based on the experience gained by continually working on industry committees, consulting activities, through the development and enhancement of products and services.
The most recent webinar topics are listed below. For a full listing of available webinars visit the Library page on this site.
Safely Purging Vessels and EquipmentPresented by Philip A. Henry, P.E. and Manuel J. Sanabria UrriolaThursday, September 17, 2020, 2:00PM EDT
This webinar will discuss procedures and situations encountered when purging gaseous content from equipment with an inert substance. When activities inside equipment require it to be opened and/or closed, both scenarios expose the process substance to air that can lead to potentially dangerous combustible mixtures, and when toxic substances are present, it is also extremely important to safely purge out equipment to concentrations below accepted threshold values. Different methods for purging can be used depending on the vessel’s geometry, the vessel’s working pressure, and the purging media and gas relief systems available, so that operations can be performed safely. Time and cost can also play a very important role when selecting the procedure..
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Nozzle Stress AnalysisPresented by Daniel W. Spring, Ph.D.
Quantifying stresses at nozzle-to-shell junctions on equipment subjected to supplemental loads is essential when designing pressure-retaining components in the petrochemical, chemical, and nuclear industries. Accurately and efficiently predicting the stress state at nozzle-to-shell junctions is an important aspect of understanding the propensity for failure from plastic collapse and the potential for initiation of crack-like flaws, which could lead to brittle fracture. The intent of this webinar is to highlight and discuss many of the simplified methods that have been proposed for determining the elastic stresses at nozzle-to-shell junctions due to internal pressure and external piping loads.
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Recent Changes to API 521Presented by Robert Sadowski, P.E.
Important changes have been made to the recently published 7th Edition (June 2020) of API 521 “Pressure Relieving and Depressuring Systems.” This webinar will highlight and summarize the significant updates and revisions as they may impact pressure relief system analyses. Attendees will be given a summary of the changes and additions made in the 7th Edition.
Using Fitness-For-Service Methods in API 579-1/ASME FFS-1 to Evaluate Damaged Components in the Creep RegimePresented by Phillip E. Prueter, P.E.
This webinar provides overviews of Part 10, Assessment of Components Operating in the Creep Range, and API 579-1/ASME FFS-1, Fitness-For-Service(API 579); as well as discussing background information on the Materials Properties Council (MPC) Omega Creep Method. In API 579, assessment procedures for estimating equipment remaining life in the creep regime are provided for components with and without a crack-like flaw, subject to steady-state and/or cyclic operating conditions. In general, the accuracy in any creep assessment procedure is highly dependent on the ability to define the stress and temperature history (including start-up, upset, and shutdown conditions) for both past and future operation; however, Omega creep testing can be performed to supplement remaining life calculations for cases where operating histories are unknown. This webinar summarizes the Levels 1, 2, and 3 FFS assessment procedures for estimating creep damage and remaining life in accordance with API 579.
An Overview of the Proposed Updates to the 2020 Edition of API 579-1/ASME FFS-1, Fitness-For-ServicePresented by Phillip E. Prueter, P.E.
This webinar is intended to summarize the approved and proposed updates to the 2020 Edition of API 579-1/ASME FFS-1, Fitness-For-Service (API 579), as well as ongoing development work relating to new technology. Additionally, an overview of the framework for proposed Part 15 guidance for piping vibration screening is provided. Lastly, a summary of the proposed Part 16 for evaluating high temperature hydrogen attack (HTHA) is offered. The technical justification supporting these proposed updates will be briefly discussed.
Acoustic Induced VibrationPresented by Michael F.P. Bifano, Ph.D., P.E.
Acoustic induced vibration (AIV) is the result of resonant vibration in the fluid column of piping systems. It is analogous to what occurs when air is blown over the opening of an empty bottle. Using case studies, this webinar describes where AIV can occur, its typical sources, characteristics of AIV that make it easily identifiable, the risks of AIV, and mitigation strategies for its prevention.
Leveraging Fitness-For-Service and Inspection Techniques to Manage the Risks Associated with High-Temperature Hydrogen AttackPresented by Phillip E. Prueter, P.E.
High-temperature hydrogen attack (HTHA) is a damage mechanism that can detrimentally affect the service life of carbon steel and low-chrome pressure equipment in the petroleum refining and related industries. This webinar summarizes a case study of a detailed analytical evaluation of potential HTHA damage in a vintage C-0.5Mo hydrotreater reactor.
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