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  1. pb2102sm

    Nat gas supply line to a generator

    Hi all, I was tasked to design a fuel gas (Natgas)supply line to a generator. I was reading some guidelines on fuel gas installations to generators set, however there is a detail these guidelines did not provide. This detail has to do with a line (sensing line) that goes from the regulator's...
  2. pb2102sm

    Hands-on Training for Chemical Engineer

    Hi all, I'm a new chemical engineer. I feel (and I have seen) that many of the chemical engineering textbooks calculations (equipment sizing, cost calcs, etc.) I saw in college are not aligned with real life ( or are not aligned to what is actually done in an engineering firm). I want to...
  3. pb2102sm

    I want to become a Process Plant Operator Trainer

    Hi all, I've got many years (10+) of experience both as plant operator (outside operator) and as Control Room (Console/board Operator). I acquired this experience before I went to college for the Chemical Engineering degree that I hold now. My question is, does anyone know if there is an...
  4. pb2102sm

    On-site Hydrogen storage for an Hydrogenation plant

    pierreick and Latexman, thanks for the inputs. I appreciate
  5. pb2102sm

    Hydraulic Resistances

    Thank you all for the inputs.
  6. pb2102sm

    On-site Hydrogen storage for an Hydrogenation plant

    Hi all, I'm working in a project to install a hydrogenation reactor. This reactor will need hydrogen supply on regular basis. We are thinking to have hydrogen (gas) stored somewhere in the plant (cylinder banks or tube trailers), periodically delivered by tracks. we have identified some NFPA (...
  7. pb2102sm

    Hydraulic Resistances

    Hi all, Does anyone knows if there is a good book for hydraulic resistances? (for components such as strainers, expansion joints, etc.) I found one book on Amazon: Handbook of Hydraulic Resistance by Idelchik I.E. (pictures attached). There are few reviews and I'm not sure how good/bad the...
  8. pb2102sm

    Conversion from mg/l to ppm

    pierreick and SuperSalad thanks for the inputs, I appreciate.
  9. pb2102sm

    Conversion from mg/l to ppm

    Hi all, I remember have seen/red that 1 mg/L = 1 ppm but I'm not sure that this is true for all cases. For example, there are salts that are completely soluble in water (NaCl), and other that are partially soluble or not soluble at all in water (AgCl, PbBr2). We also have the cases of...
  10. pb2102sm

    Design of a Lift Station

    Hi all, Does anyone know if there is a code/regulation/standard that gives directions/instruction on how to design a lift station (sewer) to handle waters from eye wash stations, deluge systems, and waters potentially with some hydrocarbons in it. The plan is to place an oil-water separator...
  11. pb2102sm

    External, clamp on Flow measurement device

    LittleInch and EdStainless, Thank you so much for the inputs.
  12. pb2102sm

    External, clamp on Flow measurement device

    Hi all, Does anyone knows if there is any reliable external (clamp on)flow meter, capable of measuring gas and liquid flows and temperature? I've seen a couple of those on the internet, but was wondering at what extent they are reliable. Also, in case of insulated piping, can that device still...
  13. pb2102sm

    PSV Sizing hydraulic calcs

    Hi LittleInch, Thanks for the information, in one of the links I found this Handbook of Hydraulic Resistance, it has some interesting data
  14. pb2102sm

    PSV Sizing hydraulic calcs

    For the Fibercast pipe schedule, I've looked on the internet. Nothing specific shows up. For the Expansion Joint pressure loss coefficient, I believe it can be found in the manufacturer's cutsheet, but since I'm designing a new system I'd like to know at least the typical values.
  15. pb2102sm

    PSV Sizing hydraulic calcs

    Hi all, 1-Can someone please tell what would be the schedule for a 6" fibercast pipe? the specification of the pipe is: Fibercast RB-2530 2- What would be the loss coefficient (K value) of an expansion joint? Please, if possible reply with references. Thank you. pb2102sm
  16. pb2102sm

    PSV Sizing, 2-phase flow prediction/test

    Shvet and The Obturator, thanks for the input. I'll have a look on these links.
  17. pb2102sm

    PSV Sizing, 2-phase flow prediction/test

    Hi all, Does anyone has an excel spreadsheet for this form ?(see picture below) Thanks in advance for the help. Best, pb210sm
  18. pb2102sm

    Hi all, I'm working on some PSV'

    Thanks Latexman for the input, I appreciate. The Obturator, this goes into the Darcy's formula for compressible flow, for sub-sonic flow conditions. You then get that flow for sizing. (of course it depends on case by case... you don't always need this info).
  19. pb2102sm

    Hi all, I'm working on some PSV'

    Hi all, I'm working on some PSV's contingency calcs for a client. At some point I had the need to work with Net Expansion Factor for compressible flow (see attached picture). Can someone please tell how to handle/approach when we have K values outside the specified range, for example lower then...
  20. pb2102sm

    PSV sizing

    Thank you all for taking the time to reply to my question. LittleInch thanks for the image you posted, it really helped me to differentiate between the two.

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