javabazshoma
Mechanical
- Mar 16, 2014
- 1
The PVElite calculation for nozzle space in div 2 is not ok.PvElite says the space is calculationg by:= Sqrt( ll² + lc² ) wherell - Arc length along the inside vessel surface in the long. direction.lc - Arc length along the inside vessel surface in the circ. directionwhile in 4.5.13 this is not the way, in 2013 ASME we have to calculate the Reff for each nozzle as per 4.5.5 & 4.5.10 then according to 4.5.13 :If the limits of reinforcement determined in accordance with paragraph 4.5.5 for nozzles in cylindrical orconical shells or paragraph 4.5.10 for nozzles in spherical or formed heads, do not overlap, no additional analysis is required.If the limits of reinforcement overlap, the following procedure shall be used or the design shall be evaluated inaccordance with the design by analysis rules of Part 5.please recheck this part