Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: JTBorton
  • Content: Threads
  • Order by date
  1. JTBorton

    Back Calc PP MW from melt flow index

    Does anyone know of a method to estimate the average molecular weight or the molecular weight distribution from a measured melt flow rate (or index) of PP? -Joshua Brain storming is when we allow dumb ideas to open our minds to what we might not have thought of before. [M. Passman]
  2. JTBorton

    HYSYS PID Tuning

    I'm relatively new to HYSYS dynamics, and am having to brush up a great deal on process control in general. My component mole fractions are 0.02 C1, 0.43 C2, 0.3 C3, 0.125 iC4, 0.125 nC4. The feed enters a fractionation column where C2 is the LK. I am using a feed valve and PI flow controller...
  3. JTBorton

    Ion Exchange Capacity

    I am very new to Ion Exchange and am having some difficulty understanding the equivilant capacity measurements. I'm seeing things like this: Total Exchange Capacity, min. Units: meq/mL -N(CH3)3 Form: 1.2 -COOH Form: 1.1 Total Exchange Capacity, min. Units: eq/L FB(Free Base)Form: 1.3 Total...
  4. JTBorton

    OPC Automation through VBA

    This may be a total shot in the dark, but... I'm trying to learn how to work with OPC data access (DA) and historical data access (HDA). I'm coming accross a lot of .dll files for OPC automation. Does anyone know where I can find a breakdown of what these .dll files do? I know that I need to...
  5. JTBorton

    Enumeration List to appear in spreadheet

    Quick question: (Excel 2003) Is it possible to make an enumeration list appear in the spreadsheet when a user calls a user-defined function? Example: =RelativeVolatility(Compound, HKref, TdegC) where the compound of interest and the reference heavy key are enumeration lists NHexane = 0...
  6. JTBorton

    vortex breakers

    Why is it so important to have a vortex breaker in your towers and vessels? Does a vortex damage the vessel or does it impact the process some how?

Part and Inventory Search