Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

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

Recent content by nealt

  1. nealt

    Problems with VLOOKUP Function in Excel

    Thanks IDS & Clyde38. I've made the changes in the spreadsheet and it works great!
  2. nealt

    Problems with VLOOKUP Function in Excel

    Clyde38: That appears to have done the trick. Thank you very much!
  3. nealt

    Problems with VLOOKUP Function in Excel

    The VLOOKUP formulas are referring to the correct table range, and the values in the table range are correct. The problem is that the values are not being reported in the cells containing the VLOOKUP formulas. First of all, a large table of data is copied into the worksheet "Option Chain"...
  4. nealt

    Problems with VLOOKUP Function in Excel

    The data is copied from a table on a website and pasted into a data table in the spreadsheet. What's comfusing about it is that it worked the first time, but not the second. Any ideas? Thanks.
  5. nealt

    Problems with VLOOKUP Function in Excel

    I have an Excel spreadsheet with multiple cells using the VLOOKUP function. The data queried changes week to week, so the data table has to be cleared out and new data copied into it each week. I imported a data table into the spreadsheet first, then wrote the formulas in a separate worksheet...
  6. nealt

    NPSHA

    If your pump station has submersible pumps as indicated, there is no suction piping and the liquid level is always above the pump intake. Therefore the liquid is not lifted to the pump and NPSHA (Net Positive Suction Head Available) doesn't come into play because NPSHR (Net Positive Suction...
  7. nealt

    Dowel Racks in lieu of Expansion Joints?

    My firm has done the site engineering for a manufacturing facility that has a loading dock / truck circulation area with concrete paving. Our plans specify 6" thick, 4,000 psi concrete with 6 x 6 / W6.5 x W6.5 WWF for the pavement section. The concrete paved area is 86 feet wide x 169 feet...
  8. nealt

    Inverted siphon ?

    Given the potential problems associated with an inverted siphon and the long term costs of monitoring, cleaning,etc., why not lower or raise the water line to accommodate the sewer at its desired profile?
  9. nealt

    Definitions

    With respect to the "right-of-way" definition, although I am neither a lawyer nor a surveyor, it is generally accepted that a right-of-way is land that is actually owned "fee simple" by the public entity, be it a municipality, a state, or federal government. That public...
  10. nealt

    CALCULATING PMF FOR DAM ANALYSIS

    To calculate the 25% PMF, use 25% or 1/4 of the PMP (Probable Maximum Precipitation) as the rainfall inut in your hydrograph model. The resulting peak discharge will be the 25% PMF.
  11. nealt

    Lateral Force on Aerial Sewer Line

    Thanks. I didn't realize HEC-RAS would perform force analysis.
  12. nealt

    Lateral Force on Aerial Sewer Line

    Thanks RWF7437, but I need to calculate forces acting on the peirs and sewer line, ultimately to determine the bending moment acting on the piers, not a water surface profile.
  13. nealt

    Lateral Force on Aerial Sewer Line

    I am designing a sewer outfall line that crosses a stream just downstream of a dam. I plan to support the sewer line on steel piers, and will use rigid restrained joint ductile iron pipe. I need help on determining the lateral forces acting on the piers and sewer line resulting from flowing...
  14. nealt

    Design by rule of thumb

    Here's my contribution: If it ain't broke, don't fix it. You can't make sugar out of s_ _ t, no matter what kind of stick you stir it with. Short form specifications: 1. Use good stuff, do good work. 2. Hammer to fit. 3. Caulk to patch. 4. Paint to match. Plumbing: Hot on the left, cold on...
  15. nealt

    I have problem with leakage in Raw

    Gtoyo: Typical permeability values for HDPE membrane liners is on the order of 1x10^-13 cm/sec. Evaporation can certainly be a factor, but if the pond has experienced a sustained "loss" rate of 2.88 cm/day, there is probably another reason. You probably have a punctured liner or a...
See more

Part and Inventory Search

Back
Top