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 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: 62hog
  • Order by date
  1. 62hog

    International Engineering Registration from the US

    Rich2001, I was not aware of this organization. Thanks for the insight. To Everyone else, Thanks for your help.
  2. 62hog

    International Engineering Registration from the US

    Actually, I am not concerned with selection of a winning bidder. My firm has a niche market that we cater to and we have been selected by the clients to do the jobs. And, YES, we were selected because of engineering qualifications. I just want to make sure we have the proper licensing to...
  3. 62hog

    International Engineering Registration from the US

    My firm may have the opportunity to do a few projects internationally. Projects may include China, Russia, Niger, Saudi Arabia and Kuwait. Can anyone tell me if it is possible for a U.S. engineer to obtain any type of reciprocal agreement with any of these countries? Thanks and I look forward...
  4. 62hog

    Quiting and working for competition, ethical?

    I read the following somewhere recently: "If you enjoy what you do (I would also assume that means where you are doing it) then you will never have to work a day in your life." I have been very fortunate and only changed jobs one time while in the consulting business. When I decided to give...
  5. 62hog

    Equivalent Metric Sensible Heat Formula

    Katmar, Is m^3/sec the preferred HVAC airflow units in metric? During my searches on the internet and in ASHRAE the units I saw were liters/sec. Any assistance on preferred units for all metric HVAC and plumbing/piping flows, pressures and heat values would be apprciated. Once again...
  6. 62hog

    Equivalent Metric Sensible Heat Formula

    Can anybody out there help me with a metric equivalent to the old tried and true formula of: Q = 1.08 x CFM x delta T where: Q - Heat quantity (BTU/Hr) CFM - Cubic Feet per Minute Delta T - Change in temperature - Deg F Thanks in advance.
  7. 62hog

    Valves installed backwards

    The reason for installing the valve "backwards" is not for loss reductions, but for safety. If the globe and stem become damaged and seperated, or "fail", the valve will fail in the closed position, not the open position. This is the way I have been taught by my boss who designed steam systems...
  8. 62hog

    Automatic Drain Valve Selection Help

    I have a pressurized methane tank @ between 11 and 14 psig. The methane contains moisture which condenses during the compression process the same way moisture condenses during an air compressor cycle. I need to select an automatic drain valve for this application, BUT there is one small...
  9. 62hog

    question about the direc fired make up air unit

    As an engineer who has designed around the installation of hundreds of direct fired MUAUs over the past 15 years, I have experienced no problems with these units. The only installations for these designs, in my opinion, is industrial settings that will afford no possibilities of recirculation...
  10. 62hog

    calculation of a 100% outside air cooling load

    One other thing must be taken into account. If you are planning on using a packaged system (ie., rooftop unit), you must consult with the manufacturer. As a general rule, (at least according to my local reps) a packaged unit is only capable of accepting approximately 25-30% of the total...
  11. 62hog

    Return Duct Sizing Tips

    In my part of the world, the accepted PD for return duct is .08"/100'. Just for kicks, the accepted PD for supply is .1"/100'
  12. 62hog

    Industrial Ventilation for comfort...

    Our firm has designed and installed several warehouse installations of BigAss Fans. The owner actually came back to us to add more to the same facility. I have seen these fans in candle making facilities and the worked wonderfully. Hope this helps. As far as ventilation, I would provide 6-10...
  13. 62hog

    Piping Pressure Drop Calculation Software

    If you are looking for single pipe pressure drops, try this link to McQuay's website. http://www.mcquay.com/eprise/main/mcquaycom/designsolutions/designtools/MQC_designtools Download the Pipesizer program and install it. This site also has Psychrometrics and Duct Sizing software available.
  14. 62hog

    Future for CAD 3-D

    My company is easing toward 3-D design with Autodesk Building Services, which is based on Autocad Architectural Desktop. We are beginning to utilize 3-D in the architectural phases of design. I have been told that when you complete an architectural design in 3-D that you just a few steps away...
  15. 62hog

    Indoor pool HVAC Engineering

    If you are getting condensation on the walls, your RH is too high in the space, or the air is not being mixed properly to be destratified. Are most of the problems you see occuring in the winter or during the summer? Is the pool heated? (I would assume that it is, being in Denver.) The best...
  16. 62hog

    Fan sizing for heat removal

    mhayas, The CFM will not change due to your ductwork. What will change, though, is the static pressure you need to specify your fan for. The static calculations will need to be as you have said. I would also add a safety factor of your choosing. Just to be sure you have sized your CFM...
  17. 62hog

    Undersized AHU

    Bend over, take it on the rear and then make it right. You will suffer far less in the long run (by correcting it up front and not patching a new system), and make better friends with your clients (who then know that you will take care of them and their pocketbooks). Another option is to...
  18. 62hog

    Has anything happedned Penn Ventilation Corporation??

    Can anyone tell me how to contact Penn Ventilation Corporation? I have tried www.pennvent.com and no web-site is found. I have an existing fan I need to check on. Thanks ahead for the help!
  19. 62hog

    Steam pipe Pressure rating

    All of this was taken as you have written. Being in the consulting business, I am used to collecting information and analyzing and utilizing it as appropriate. Thanks for all of the additional advice and concern.
  20. 62hog

    Steam pipe Pressure rating

    Thanks Buddyo1. You made the correct assumptions about material and pipe size. This helps alot.

Part and Inventory Search

Back
Top