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Recent content by NCDesign

  1. NCDesign

    Steam Pressures

    ione, Steamdog, and SNORGY thanks for your information and insight it has helped tremendously.
  2. NCDesign

    Steam Pressures

    I am very aware of the temperature differences of the two steam sources. What I'm really after is if the design properly incorporates using the 60 psig steam (equipment has been selected at the higher operating condition, i can get the required performance, pipe is selected properly, I am...
  3. NCDesign

    Steam Pressures

    Ok so no energy is lost and the HX's are actually more efficient at the lower pressure. Are there any additional installation considerations that need to be made because I am using the 60 psig steam? ASME ratings, service issues, etc. None of my literature addresses any of that.
  4. NCDesign

    Steam Pressures

    I am working on a system and I have 60 psig steam available. All of my components, HX's, coils, etc can be operated at this higher pressure. However, my previous experience (every steam system I have come across the steam was transported at a higher pressure and used at a lower pressure) and...
  5. NCDesign

    4160 Motor Efficiency

    jraef, your are dead right a swag is a swag which is why I was attempting to get additional information to set a baseline worst case. Unfortunately there just isn't enough information on the motor to even try and get performance data from a manufacturer. Also, due to the nature of the motor's...
  6. NCDesign

    4160 Motor Efficiency

    You all have pretty much confirmed that without test or factory data it's a shot in the dark. I was glad to see that my initial shot was in-line with your responses. I was pegging it at somewhere between 80-90%. Thanks for all the info.
  7. NCDesign

    4160 Motor Efficiency

    I am trying to figure out the heat load in a municipal pumping station. The dominating load is three 4160 volt motors, dating from the mid 80's, driving the pumps. I have been trying to determine the standard or baseline efficiencies for motors of this type from this time and can't find diddly...
  8. NCDesign

    Employee Billable Time

    Ron, He indicated that he was already taking into account vacation and holidays into the billing rate. 40*52 = 2080 hrs 2-Weeks Vacation - 80 hrs 7 Paid Holidays - 56 hrs 1944 hrs available to bill in the year 5 days training - 40 hours 1-(40/1944) = 97.9% I did muck up the phrasing...
  9. NCDesign

    Employee Billable Time

    waytsh If you have the work for them to do, their billable time should approach 100%. Any substantial deviation from that should be due to lack of work or important support tasks. An employee at that level is dependent on you to provide them their tasks and workload. I would expect that any...
  10. NCDesign

    Experience with reducing employee hours

    Like others here our entire company (small 12 person consulting firm) took a pay-cut along with a reduced work week when our business slowed substantially. This decision was made among the 'senior' staff (PEs and PMs). We have now returned to a normal, plus some, work schedule and it was the...
  11. NCDesign

    TRACE 700 Results

    I just double checked a Design Cooling Capacities report from a project I previously ran in Trace and it does not list a time for the Peak Plant Loads only for the Block Plant Loads. The only obvious error from your description is that Trace has assigned a time to your peak load. By its...
  12. NCDesign

    As-Built record drawings

    It depends on the AHJ whether or not sealed as-built drawings are required. That should always be addressed on the front end of a project. If you were to issue the as-built drawings with the engineer's stamp and company information without the engineer actually being involved you could be...
  13. NCDesign

    Need advice on Mistakes

    Acknowledge your mistake and be proactive about fixing it. Don't shy away from it. When the boss gets back tell him, X went out, Y was wrong, we did Z and all is good in the world. (As others have stated this should be fairly easy if it's just a border.) Part of being a good engineer is...
  14. NCDesign

    Elevator Sump Pump

    You are correct MintJulep. But apparently there is some discrepency as to when the elevator code changed and became enforcable. I did some further investigating and what I have concluded is I have two departments that are completely seperate (one state, one local) that both have elevator sump...
  15. NCDesign

    MEP Consulting, money collection

    Interesting ajack1 have you had to, or better yet chosen to, impose your penalty. I don't know of many people that actually enforce the penalty clauses in their invoices. But with your generous terms I think I would always apply the penalty no exceptions. The alternative is a quickpay...
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