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 atilashorse

  1. atilashorse

    Going out on my own.

    Fisrt of all, I suggest you find out if flying solo is for you. Just as for any other businees, you will need some character elements essential in an entrepeneur. You can do some search and take a quiz about entrepeneurialship over the internet. If you think you are ready, I'd like to share my...
  2. atilashorse

    getting the shaft by boss

    I see you have an enteprenurial mind. You see an opportunity and try to take advantage of it. I think you should try and go fly solo, when you are ready. My 2 cents of advise: when you make a deal, do it in a plain field. Almost always doing business with your employer is a bad idea because they...
  3. atilashorse

    Embedded Plate at concrete edge

    Thank you for your help. I don't find a lot of embedments in my scope of work. Buying the book just for this job is quite a expense, on the other hand, I have to deliver by Monday. Is there any website you know of showing these formulas? Simpson hasn't exactly waht I'm looking for. Thanks again.
  4. atilashorse

    Embedded Plate at concrete edge

    In order to support the roof joists, embedded plates connected to concrete with shear studs are used. In a critical condition, the roof joist is aligned with the panel edge, so the plate will be embedded at the edge of the panel. I need to find out formulas to calculate the shear studs when they...
  5. atilashorse

    Headed Stud Strength

    Yes, PCI recommends plate thickness to be 2/3 of stud diameter. OK, that may be the reason, I am not quite convinced on how the union between the stud and plate will perform. I guess test have been done and it is well determine that stud failure controls. Regarding what controls, I have found...
  6. atilashorse

    Headed Stud Strength

    60-ksi shear studs are welded to 36-ksi base metal plates or beams. All books I have read use the 60 ksi value when calculating stud strength. I have always used the lower, 36-ksi base metal strength, but I have found so many authors using the 60 ksi value, that I am truly concerned I am...
  7. atilashorse

    Chiller Flow

    To relate DT with flow will involve a substantial amount of data, in particular, the exact heat load of the building. Be careful with velocities, because in order to determine flow, you will need the average velocity across the pipe cross section. Velocity is max at center of flow, and near zero...
  8. atilashorse

    Draining Condensate from Return-side Duct

    Sorry I misunterstood the data. I agree with quark, a 3" trap should suffice. Now, when the damper is closed, the air handler shouldn't be working. Additionally, if the damper is closed because of a fire, what importance may have a few drops of water into the AC ductwork anyhow? I don't think...
  9. atilashorse

    Draining Condensate from Return-side Duct

    For 6000 fpm in a 24" duct, you will be moving aprox 18,600 CFM, and your pressure drop will be 1.6 in per 100 feet of ductwork. If you have about 24" between the condensate drain and the fan, that will be 0.067 in in pressure drop.
  10. atilashorse

    Ductwork and Condensation

    You can use uninsulated ductwork when air temperature, or moisture inside and outside the ductwork are very similar. For instance, you can run uninsulated supply AC ductwork through conditioned spaces, not close to radiant surfaces like hot roofs, where warm air will gather. Do not run...
  11. atilashorse

    Best Professional HVAC software

    Thank you for your input. I have checked Carrier software, but didn;t find it to be better than Trace 700. I have used Trace 700, and I liked it. Wrightsoft is marketed by the AC Contractors Association. I have never used it but I am told is good. I think I have made up my mind andwill buy...
  12. atilashorse

    Best Professional HVAC software

    I am looking for a good professional HVAC software to perform load calculations. So far, I have found the Trane software and Wrightsoft. They both seem very good, but I can't decide which one is best. I'd appreciate any input from users who perfrom residential and commercial heat load...
  13. atilashorse

    Revoke PE SEAL

    You can put a lien on the property where your design will be built. In Florida, the process is: You serve a Notice to Owner within 15 days of finishing your work, after that you will send a Notice of Intent to Lien, and if necessary you will follow up with actually putting a lien on the...
  14. atilashorse

    French Drain

    We live in low terrain, about 5 to 10 FT MSL (Miami, FL). Exfiltration trenches, or french drains, are the main type of storm drainage used. Runoff water is collected in the drainage system, and percolates at a rate allowed by the soil. The use of rock in the trench and geotextile wrapping is...
  15. atilashorse

    Strom Drainage Calculation

    Hello! Can somebody please indicate me the design approach and formulas to determine the legth adn diameter of Perforated Pipe in a rock bed (French Drain). Additionally, what is the criteria to determine the amount and size of the catch basins connected to the drainage pipes? This is a...
See more

Part and Inventory Search

Back
Top