Bobfromoh,
I agree with you that the area available in the nozzle neck is varying around the circumference of the nozzle; the shape of the opening in the shell varies as well, in fact in design software you can find 2 calculations one for the long chord cross section and one for the short chord...
CodeJackal,
I'm happy to read that you saw the difference that I was trying to underline.
In the last sketch I posted is evident that the reinforcement area in the nozzle wall is a parallelogram inclined of the angle beta with the area that you wrote down A = (H/sin beta) * (tn - trn).
I don't...
Thanks lsthill, I'll ask for the Compress V&V Manual,
in the meanwhile
Some Udates:
I checked the Italian code VSR: It states to take reinforcement area limits along the nozzle wall direction and if we assume the same logic in ASME code the available area results the same as computed by...
For a wider discussion please refer to
http://www.eng-tips.com/viewthread.cfm?qid=167425&page=1
and sorry for cross posting...
Giangiacomo
www.atbrivacalzoni.com
Thanks all for your answer,
For CodeJackal: I understand and agree with your description of the limits as decay length. In order to be clearer I posted a new image on
http://www.4shared.com/dir/904568/8806ba87/sharing.html
where I've drawn the reinforcement limits in magenta color.
In a case...
Thanks deanc,
I checked the example L-7.7.1 and It's quite useful. The problem of interpretation still remains, because if the area of reinforcement must stay inside the limits stated by the Code, I cannot understand why we should neglect the surplus of area available in a tilted nozzle due to...
Hi!
Has anyone experienced problems in verifying reinforcement area requirements in tilted nozzles?
I’ve some troubles with a 45° degrees downward oriented nozzle type 9.
In computing the limits of reinforcement I usually refer to Article D-5 of ASME VIII div.2.
So I find a limit in the normal...
Thanks Cheops.
I checked the parallel to the vessel wall limits and they're respected.
Actually the reason that is at the base of my interpretation is that the available area comprised inside the limits (parallel and normal to the vessel wall) stated by ASME,can be considered as reinforcement...
I posted a sketch of the problem at this URL
http://www.4shared.com/dir/904568/8806ba87/sharing.html
Please check it out.
Giangiacomo
www.atbrivacalzoni.com
Hi!
Has anyone experienced problems in verifying reinforcement area requirements in tilted nozzles?
I’ve some troubles with a 45° degrees downward oriented nozzle type 9.
In computing the limits of reinforcement I usually refer to Article D-5 of ASME VII div.2.
So I find a limit in the normal...