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  • Users: Golestan
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  1. Golestan

    Clarification for Sustainable HVAC Design

    Thank you all for your comments. They are all important issues.
  2. Golestan

    Clarification for Sustainable HVAC Design

    Hi, I am back from ASHRAE in NYC, the buzz word this year is of course Green and Sustainable Design. It would be beneficial for our forum to get some definitions and examples of this topic. I for one want to know more on the sustainability issue and how to apply it to HVAC design. thanks,
  3. Golestan

    AHR Expo

    I just got back home to Texas. NYC was cold on Monday and Tuesday, high was 25-F. Went to a few meetings and did the show for 1/2 day. The theme is "GreeN" and sustainable. What are a few simple definitions for sustainable? Regards,
  4. Golestan

    Trench Drains

    you probabely will need p-trap and vent. And might even need a trap primer. check with your plumbing inspector authority.
  5. Golestan

    Duct shape and material

    Here are my thoughts: Friction coefficient is lower for round ducts. Metal round ducts and externally wrapped insulation will be easier to clean for future duct cleaning. Keep any round flex duct to min. 5-6 ft. long. For lower pressure drop, use smooth bends and transitions. For low noise...
  6. Golestan

    Induction Box in Restroom

    Hi, I need to learn more on the induction box application. Is it still used? I am looking at remodeling a 30 year old large facility, and on the old plans I see boxes that looks like a VAV box supplying air to the rest rooms, but labled as an induction box. Are there any manufactureres...
  7. Golestan

    Show off your vba project

    That is a great idea if we could see some of the neat and tricky vba's. I myself am trying teach myself how to write them. I know Basic and Fortran from a longtime ago, but have not done any vba. regards,
  8. Golestan

    holiday inspection

    Hi, Are you trying to find imperfections in the insulation or are you doing cathodic protection? Please clarify what function the holiday test is for.
  9. Golestan

    Toilett Water Surface Area

    I am not sure if this is the correct forum, but any help will be appreciated. I was looking at a package of plumbing submittals and for water closets, the supplier had the water surface areas listed. Are there any standards on this parameter. What is considered code, good or un-acceptable...
  10. Golestan

    where do I find design information on chilled water system

    Bell and Gossett has very good litrature and their school is called the Little Red House training programs. Morton Grove near Chicago.
  11. Golestan

    Happy Thanksgiving to All HVAC/R memebrs

    Thanks for all your contributions and questions/answers.
  12. Golestan

    Min CFM for Bathroom Exhaust

    Hi, Does ASHRAE 62-XXXX have any values for exhaust from rest rooms in public buildings? What is the min required from Building code perspective. I am confused because some codes refer to Area, some to People and some to Number of stalls. Thanks,
  13. Golestan

    Dry Cleaner Boiler Room Wall Fire rating

    Hi, What is the required wall fire rating for the boiler room of a dry cleaner shop? How about the wall rating for the entire store. I am working on the MEP for construction of a dry cleaner as a finishout inside of an existing shell building. Shell building is brand new. Has fire sprinkler...
  14. Golestan

    Cooling Load Spreadsheet

    Hi, I recommend about 250 sq-ft/ton. Units should be provided with economizer and enthalpy control option. Make sure they are taking-in 10-20% fresh air per ASHRAE std. There is a software demo from ELITE. you may be able to use it it has a limitation on the size of the building. Easy to...
  15. Golestan

    Too much ventilation Air

    Hello, This may be a simple one. I have a 12000 sq-ft white box finish out. It needs to have 2 RTU's @ 15 ton each. Fresh air should be at 25%. Can a baromtric relief damper on the unit compensate for the extra air brought in. Does it depend on the unit construction? Or do I need to relief...
  16. Golestan

    GW Basic compiler

    Thanks for all the comments, What is the best way to teach this old dog, (GWBASIC programmer) to lear and use the VB in excell. I have been told that all the calculations I want to do, can be done in excell. Where do I start? regards,
  17. Golestan

    GW Basic compiler

    Hi Guys, I am looking for a windows based BASIC compiler. I used to be good at programing in basic and also I have some design programs that I want to use now. Thanks for any information.
  18. Golestan

    Air intake duct design

    Sab1, It may be that your total AHU has the 48500 cfm, the OA flow at about 10 -15% of that amount (old rules of thumb) would make the OA cfm at about 4000-6000 cfm. Even with this senario, the 24X16" is too small. I believe 1000 fpm is max velocity I would bring air in. This will be about...
  19. Golestan

    Exposed ducting and air diffusers elevation AFF

    I am looking for an optimum elevation AFF for round air diffusers. The space is a retail store with exposed ducts and 18 ft. high roof deck all open. I want to keep the top layers of air stagnate (near the roof), and keep the lower occupied zone conditioned. Diffuser throw is about 15 ft...
  20. Golestan

    Deep Seal P-Trap

    Dear Mr. Cornelius, I was hoping for an advice rather than a question!

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