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  • Users: Mark31
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  1. Mark31

    Excel Scroll Bar

    Is there a way to reset the vertical scroll bar in excel so that it is calibrated to the information on the sheet rather than what used to be on the sheet?
  2. Mark31

    SNCR

    Can anyone tell me where UREA injection is located for NOx comtrol on a bi-drum boiler?
  3. Mark31

    Running a macro from an "IF" statement

    I would be grateful if someone could let me know how to run a macro from an "IF" statment. I guess I am really after the syntax.... =if(a1>b1,run macro1,run macro2) what do I need to replace "run macro" with to make it work? thanks....
  4. Mark31

    Boiler Efficiency

    This one should separate the men from the boys..... When calculating boiler efficiency (chemical heat or fuel efficiency), you can account for a steam coil airheater by either adding a credit to the loss account or by increasing the reference temperature. Both make sense except they give...
  5. Mark31

    CE Canada "MU" Boiler

    Does anyone have experiance with a CE Canada designed "MU" boiler firing oil or gas? I am interested to see if it performs as designed or if it struggles to make steam temperature. Thanks
  6. Mark31

    Allowable Chlorides in Cooling Tower Circulating Water

    Cooling Tower suppliers nominate an allowable chloride level of approx. 750ppm (50C, pH=6-8) for circulating water. Corrosion resistance tables nominate a chloride level of approx. 150 to 250ppm for aqueous solutions in contact with 316 SS. Can anyone tell me why there is such a discrepancy...
  7. Mark31

    Allowable Chlorine levels at high temp for stainless

    I am looking for a graph that shows the allowable chlorine levels at high temperatures for various stainless steels. Typically the curve will have the chlorine ppm on the X axis and temperature on the Y axis with a curve for each material. If anyone has one or knows where I can get on, it...

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