Becht Engineering performs considerable consulting engagements in the Pressure Vessel design and trouble shooting.
If the behavior of discontinuity stresses due to pressure is not properly understood in elevated temperature design, unconservative designs can result. One particular issue with pressure stresses is the behavior of the discontinuity bending stresses. An example of discontinuity stresses would be with a pipe welded to a flange. When pressured, the pipe will radially […]
Coke drums used in the delayed coking process have historically been subjected to severe operating conditions which result in numerous mechanical problems. The Coke Drum is far from your typical pressure vessel. However, the industry standard foundation, shimming, grouting and anchor bolt design continue to be identical to a typical pressure vessel. There is a […]
Coke drum lives can be extended by using an equipment health monitoring system, often without increasing the cycle time. Delayed coking is a form of thermal cracking used for processing “bottom of barrel” residuum. Thermal cracking produces a wide range of hydrocarbons along with coke, a solid structure of ~90 wt% carbon. In the delayed […]
So, you think you know what load case combinations to use for your ASME Section VIII, Division 2, Part 5 analysis to satisfy Protection Against? Common sense says to follow to Code rules in Table 5.3 – but do you fully understand what that means? And, what loads should you use to satisfy Protection […]
While there are currently no explicit rules on how to perform a finite element analysis (FEA) if you are doing so in support of an ASME Section VIII, Division 1 vessel, there is good practice. Regarding rules, all you have is from Article U-2(g), which says: This Division of Section VIII does not contain […]
Since the introduction of ASME Section VIII, Division 2 in 1968, a design basis document called a Users Design Specification (UDS) has been a Code requirement. The original requirements from 1968 were rather sparse. So, when Division 2 was re-written and issued in 2007, it was decided to expand the requirements to encompass all of […]
Since the introduction of ASME Section VIII, Division 2 in 1968, a design basis document called a Users Design Specification (UDS) has been a Code requirement. The original requirements from 1968 were rather sparse. So, when Division 2 was re-written and issued in 2007, it was decided to expand the requirements to encompass all of […]
I was asked to participate in an engineering career development panel session at the 2013 ASME Pressure Vessel and Piping Conference which was held in Paris, France. I elected to talk about what engineers can do to improve their leadership skills. I am including some of the introductory material in this blog; the full presentation […]
For quite some time now, Section VIII Division 1 of the ASME Boiler & Pressure Vessel Code has included the following provision in Appendix 2-15: 2-15 QUALIFICATION OF ASSEMBLY PROCEDURES AND ASSEMBLERS. It is recommended that flange joints designed to this Appendix be assembled by qualified procedures and by qualified assemblers. ASME PCC-1 may be […]
What Do You Do When There Are No Rules? On July 1, 2019, the 2019 Edition of ASME Section VIII, Division 1 will be published. Among the 117 changes to this Edition will be a revised paragraph U-2(g), and a new Mandatory Appendix 46. The new U-2(g) will read: (g) This Division of Section […]
