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  1. mohtogh

    Blanket Gas Design Line sizing

    Thanks guys. your guidelines were so helpful.
  2. mohtogh

    Three worksheet tied together while copying

    Hi, I know title is not clear. I have sheet 1,sheet 2,and sheet 3 in one workbook. I want tied together theses worksheets (for ever), and then hide sheet 2 and sheet 3.So if somebody wants copy sheet 1 to other workbook, those two hidden worksheets, 2 and 3 ,automatically go with sheet 1. Is...
  3. mohtogh

    Blanket Gas Design Line sizing

    Hello all, As far as I Know, design basis for putting blanket gas on a atmospheric tank is based on rated capacity of downstream pump.(to prevent of vacuum during blocked inlets).With the mentioned flowrate,I want to size blanket gas line. My question is, what is the velocity and pressure loss...
  4. mohtogh

    Wide range PH analyzer

    Hi, Can we use PH analyzer for a stream with wide range of PH, like 1 to 14? Some of my coleagues say we have to use "conductivity analyzer" instead. Is that true? Thanks
  5. mohtogh

    About FID

    Chromatograph can give you concentration of each hydrocarbon separately, while FID just report total concentration of carbon in sample, and then you ( or your instrument)can converts it to equivalent methane, or every hydrocarbon that you want.For a FID analyzer, we can have calibration curve...
  6. mohtogh

    IF; not for a cell, for a table

    Hi Guys, If I want to check a cell is negative or positive I write: =IF(A1>0,"OK","ERROR") But I want to check a table,if there is even one negative number, I see ERROR. Is that possible? Thanks
  7. mohtogh

    Blow down PH and alkalinity

    Thank you for your help.
  8. mohtogh

    Desalination using Multiple Effect Evaporator

    http://matche.com/EquipCost/index.htm
  9. mohtogh

    Blow down PH and alkalinity

    Hi guys, I have a hot water stream, with PH=9.5, that goes to a steam separator. My question is this: After flashing,how much alkalinity goes to steam stream(as CO2)? How much is blow down's alkalinity and PH? I have heard different answers: "...PH increased" "...PH decreased" "All carbonate...
  10. mohtogh

    Fix an spreadsheet, Leads to DIV0 all cells

    Thank you guys. You helped me a lot. I used your methods for finding source of error and finally found it. Thank you again
  11. mohtogh

    Fix an spreadsheet, Leads to DIV0 all cells

    Hi friends, I'm fixing a big spreadsheet,which includes some iteration.(Actually it is a mass balance table in water treatment plant, including flowrates and concentrations). I want to change some wrong formulas to correct ones, but immidiately after changing formula in a cell, lots of cells...
  12. mohtogh

    Stand pipe applications

    thank you. It is just my ciriosity. I like to know other's opinion and experience in this matter. Thank you again for sharing your knowledge.
  13. mohtogh

    Stand pipe applications

    Hi, What is the reason for using "Satand pipe"? Does the "providing NPSHA" is only application for stand pipe? What is "Stand pipe's" definition? Thanks for replies
  14. mohtogh

    Hyperlink inside a workbook

    Excellent. Thanks EGT01
  15. mohtogh

    Hyperlink inside a workbook

    Hi, Is that possible I create a hyperlink in "Sheet 1" that it goes to "Sheet 2" of the same work book? Thanks
  16. mohtogh

    For Chemistry Guru's

    Yes, but if you want mention solution in w/v (weight to volume) you should mention units too: w/v gr/ml w/v by itself is not clear.
  17. mohtogh

    Welding Spacing in Pipe Spool

    In some specs, I read 200 mm is min. allowable distance between welds.
  18. mohtogh

    Detailed Design: What should be done?

    Thanks all. Montemayor: Yes, I am a degreed chE, and I passed that course. we designed a whole small plant, but teacher did not say which section is in BASIC and which one is in DETAILED section.(Actually we did that just like a homework.) JStephen: It is designing a part of plant.
  19. mohtogh

    definition of slurry?

    we have 5% lime in water, and we considered that as slurry. We have specific type instrument for that service.(in line pressure gauge and...). Hope this help
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