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  1. HOUARI YAHIAOUI

    Acid Flare Drum

    Hello Experts. I'm already work with a data sheet of an acid flare KO drum.. It is mentionned that the material used is CS+6mm at 3.5 kg/cm2g design pressure and 150°C design tempertaure. from your point of view, Is the selected material for those condtion with a fluid containing Acid gas and...
  2. HOUARI YAHIAOUI

    HRSG classification

    HI EXPERTS MY QUESTION IS : How Can I classify the HRSG? is this unit is fired or not fired boiler?? Cordially :)
  3. HOUARI YAHIAOUI

    Flange type

    Hi experts; please, what isthe differencies between hub flange and pad flange?
  4. HOUARI YAHIAOUI

    Fouling resistance

    Hello guys, I'm facing at these requirements: -Fixed tubesheet exchanger can be used if shell side fluid is clean i.e fouling resistance <0.0002 hr m2.°C/Kcal. the question is : is the fluid is considered as a clean where the fouling resistance is lowest??? Cordially [dazed]
  5. HOUARI YAHIAOUI

    Drain Location

    Hello I'm facing at a datasheet of drum in vertical postion where the drain is not at the lowest point of the vessel !!. is there any passage in standrad/norm that treat this preoccupation, As I know that the drain must be at the lowest point and the vent at the hieghest point of the vessel...
  6. HOUARI YAHIAOUI

    Manholes of a vessel

    Hello Experts; The question : is there a limitation of manway/manhole size related to the inner diameter of the vessel? I mean is there o formula or standard/norms that give a relation between the size of the vessel and the size of manholes? Thank You ;)
  7. HOUARI YAHIAOUI

    Cladding &amp; corrosion allowance

    Hello Experts; I'm facing at a datasheet of a vessel where it is mentioned that the material of constrcution is : CS+6mm CA+ Cladding. The question is that I know that where cladding is used no additional corrosion allowance is needed, is there any norm or standard that confirm this?! cordially ;)
  8. HOUARI YAHIAOUI

    Girth/Body flanges

    Hello, please is there a diffrence between a girth flange and a body flange? if it is the case what is the meaning of the two and if there is any doc or book mention these special types.
  9. HOUARI YAHIAOUI

    Pressure Vessel Size - ASME SEC 8

    Hello dear expert, What is the minimum size (inside diameter) of a vessel according to ASME SEC 8.
  10. HOUARI YAHIAOUI

    Flange Serie A and Serie B

    Hello everybody; plz what is the difference between the two series A and B of flange for large diameter? and how to choose between the two?
  11. HOUARI YAHIAOUI

    Allowable loads on nozzles for pressure vessel

    Hello experts my question is about allowable loads on nozzles for pressure vessel. the standard of the company wich I work at, has tabular alloawble values of forces (Fa,Fc,Fl) and moments (Mt,Mc,and Ml) according to flange rating. The problem is when I choose to analyse loading for nozzles...
  12. HOUARI YAHIAOUI

    Vessel design with PV elite 2018

    Hello world, I'am a fresh mechanical engineer and I'm trying to re-design an existed pressure vessel just for training and get familiar with PV design. I have many questions and problems that maybe are basis for experenced one. 1- Is ir necessary to set values of Projection from Top,Projection...
  13. HOUARI YAHIAOUI

    Books suggestion

    Hello experts, Any suggestion of books to design pressure vessel, heat exchanger, fired heater and boilers. Cordially
  14. HOUARI YAHIAOUI

    NELSON curve API 941

    HELLO EXPERTS; My question is : How to use the NELSON curve API 941 to confirm if the material shoosen is the right material? may my question is a basic question so sorry. as an exemple : A drum containing a fluid withe 93 mol% of H2, operating at 55°C at operating pressure equal to 129.2 Barg...
  15. HOUARI YAHIAOUI

    applicability of rod bar diam.20 mm between pipe and support??

    hello, Question : applicability of rod bar diam.20 mm between pipe and support?
  16. HOUARI YAHIAOUI

    Books and advices

    hello experts; I'm a fresh mechanical engineer working at Engineering-SH, need advices from the engineers in this forum concerning design of static equipements. I need also,a guide (why not if there's a book(s)) for types of heat exchangers and descreption,columns, drums, spheres and tanks...
  17. HOUARI YAHIAOUI

    Conflict in heat exchanger datasheet

    Hello experts; I want to clarify this case, if it is a discrepancy or not.In data sheet of a shell and tube heat exchanger I found that the designer mention this in notes : Note : TUBE SIDE CS+3mm, SHELL SIDE CS+6mm, TUBESHEET Superduplex 2507, TUBES Superduplex 2507. I want to know what is the...
  18. HOUARI YAHIAOUI

    HELLO; You will find in attached

    HELLO; You will find in attached the picture of nozzle with details in question. Please help me to find out with my issue; my questions are : 1) What’s the formula utilized to find the value of L=318,9 mm, and what “L” represent in this figure?? 2) I find in the report of COMPRESS that the...
  19. HOUARI YAHIAOUI

    Nozzle design

    HELLO; You will find in attached the picture of nozzle with details in question. Please help me to find out with my issue; my questions are : 1) What’s the formula utilized to find the value of L=318,9 mm, and what “L” represent in this figure?? 2) I find in the report of COMPRESS that the...
  20. HOUARI YAHIAOUI

    Nozzle's types

    hello everyone; I need help about all nozzle types for pressure vessel included reinforced and not rienforced types, my need is to draw an organizational chart to help for the right choice of nozzle type on function of service or thickness of the vesel and the diametre of the nozzle. if there...

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