WRC 107 and Hillside Nozzle

[lcmechengr]

Does WRC 107 accurately analyze hillside nozzles or can it only be used for radial nozzles?

 

[JStephen]

I'm fairly sure the WRC 107 didn't consider the issue when written- that just complicates the problem that much more.

From what I recall, even the WRC 107 is somewhat approximate, or at least it's agreement with FEA is somewhat approximate. If a nozzle was slightly hillsided, I'd just disregard the angle and calculate as if it was straight. With a more severe angle, it'd still be worth checking. If the calculations show the nozzle is very adequate/ overbuilt, or if they shot it as completely inadequate, that would be informative. If they show it as marginal, it wouldn't be as helpful.

 

[corus]

I'm sure pressure vessel codes consider this. I'm not sure what the new european number is but it used to be called BS 5500.

corus

 

[SnTMan]

lcmechengr, I agree w/ JStephen, to my recollection WRC-107 does not consider hillside nozzles, but I think his approach is reasonable.

And I am certain ASME Sec VIII, Div 1 gives no design rules for nozzle loadings. Don't know about any other codes though.

Regards,

Mike