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  • Users: PatBethea
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  1. PatBethea

    Pump Handbook - 4th edition

    RE: Pump Handbook by Karassick, Messina, et al.; 4th ed. I had an earlier version of this book several years back. I was looking to buy the latest version. The McGraw-Hill website states that "SI units used throughout the book". Does anyone know if that statement means that Imperial units...
  2. PatBethea

    No Ceiling in Bathrooms

    I'm doing the HVAC for a bowling alley. I went out with the mechanical contractor one day last week and discovered that the bathrooms are being built without a ceiling. The owner decided he would just build up 8' walls around the bathrooms, but not enclose them. My initial response was, "You...
  3. PatBethea

    Requirement for Outdoor Air Dispute

    I completed the HVAC design for a church in my area a while back. Currently there is a disagreement over the neccessity for outdoor (ventilation) air. I'm in FL and the current Florida code is based upon the 2003 IMC. Section 403.3 of the 2004 Florida Mechanical Code states, “Ventilation...
  4. PatBethea

    Fees for preparing commercial energy forms (FL)

    For those of you practicing in Florida, I'm curious as to how you charge for preparing commercial energy forms. I've been treating it as a "service" - what I mean by this is that I've only been charging a nominal fee of somewhere between $250 - $500 in the hopes of attracting engineering work...
  5. PatBethea

    Grocery Store HVAC Design Tips

    I've been asked to provide a quote to design the HVAC system for a new grocery store. This project is just different enough that I thought I'd see if I could garner any tips. There's a small section on "supermarkets" in the ASHRAE Applications Handbook (2007 - Ch. 2). Does anyone have any...
  6. PatBethea

    2008 Civil 3d Display Order

    Everytime I open a drawing file with Mr. Sid photo references, the display order is wrong. Each time the external references load, they are placed on top of everything else and I have to manually change the display order back. I am not seeing this with jpegs (yet) - just with Mr. Sid. Outside...
  7. PatBethea

    Advice on Historic Preservation Project

    There's a small town nearby (I'm in Florida) that is refurbishing an old train depot with funds from a historic preservation grant. Originally they didn't think they would have enough money to install any mechanical systems, but as the end of the project is nearing, they have decided that there...
  8. PatBethea

    EXCEL is automatically converting to decimal

    Recently, I've noticed EXCEL automatically converting my formulas which contain fractions to a decimal format (for instance if I type in "4/12", it converts this to "0.33333333333" in the formula line). This is not desirable. The program is allowing me to go back into the formulas and replace...
  9. PatBethea

    Phase I ESA Env. Lien Search

    Since ASTM E1527-05 went into effect, an Environmental Lien Search and an Activities and Use Limitations Search is spelled out as a user responsibility. These searches are also required in order to obtain the LLP afforded by the Phase I. Without the searches, there is no LLP. As a result of...
  10. PatBethea

    Truss to Beam Connection

    I've got steel trusses currently sitting on top of a concrete header. The trusses span 60 feet. The roof is curved. The bottom chords of the trusses are 4" channel oriented so that they are sitting on their 'legs'. The bottom chord currently rests on the concrete header - the two are not...
  11. PatBethea

    Distributed Load vs. Point Load

    I had a SE size a beam for me that will be used to support three steel trusses (columns will sit under the two end trusses). In his calculations, he assumed that the load from the trusses was distributed over the length of the beam. The trusses are approximately 14' apart. I'm trying to...
  12. PatBethea

    NCEES Council Record

    I'm not sure which forum is the most appropriate for this question. Are there any out there with experience with the NCEES Council Record? I've got a small business and am looking at some opportunities in other states. In my mind, my first step is to obtain a PE in that state, and then a CA...
  13. PatBethea

    Air movement in egress elements

    Can somebody help me with some code interpretation? I'm designing the mechanical systems for a daycare facility in Florida. There is a corridor that runs east-west through the middle of the building (100 feet long). The corridor opens up on each end to a lobby with a lot of glass. I've...
  14. PatBethea

    Plumbing Drawing Requirements

    I'm a mechanical PE in FL working on my first plumbing engineering job. The engineering portion wasn't hard - the hardest part was making sure I met the right codes, but I am not sure what is required for presentation. FL statute says to provide: a. floor plans, site plans, and building and...

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