How to improve the design review efficient for pressure vessel design in project management? 1

[mechengineer]

PV design engineer effective work is only a few weeks (1st revision of drawing and calculation) which is about 10% of total engineering man-hour for a pressure vessel design. Others, 90% is the drawing and calculation review.
It is very low efficient for the review. Why it needs so long time? Some projects drag for more than one year, it is not rare. The reasons may be 1. Pressure vessel is customized design, not standardizing. 2. A user pay money to EPC and EPC control the review. If EPC has no control or limit for how many times for the engineering document review, nobody can do it. It was a real case when I worked in an EPC company that the design review was already to construction in revision 3 in three months. This project payment based on man-hours by the user, there was still a lot of man hours not used, so the company passed the design to a subsidiary company review again to shear the benefits. 3. Some review engineers (static engineer) in EPC are lack enough of knowledge and experience in pressure vessel design & fabrication.
In view of manufacturer, as a supplier, have to provide a good service. They (engineering) are only way to update without ending even if there are a lot of comment unnecessary, repeat, mistakes …., as some reasons in most of cases manufacturers (project team) would not stop the comment from client.
I have no idea…,

 

[r6155]

You should look for work in a good company.

Regards

 

[Trestala]

You have to consider that pressure vessels require input from several disciplines for nozzle arrangement, platform design, internals design, instrumentation, insulation, pipe supports, dress-out consideration, other attachments such as pumps or agitators, etc.

Those information are not readily available at the start of engineering of the pressure vessel and design is usually iterative especially for equipment such as towers where there are pipe supports, platforms, internals, insulation, etc. If those are available at the beginning, you can finish the pressure vessel design on a short period of time.

 

[r6155]

The most important thing is to define the parts that have a long delivery time.
Then continue with other editions, inclusive during fabrication.

Regards

 

I had to rearrange the order of the words in the title to make sense of it.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."