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 TugboatEng 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: *

  1. Rumananoor

    4000 CFM fan with 3 in static - Please check

    Hi mech5, Thank you for your kind email and clarification of your calculation. It is great to know that you are very detailed in your approach in calculating the static pressure. Based on my calculation the fan is for a kitchen fan so the static loss at the hood is 1 in. WC and the losses at...
  2. Rumananoor

    4000 CFM fan with 3 in static - Please check

    Thanks Mech5, Will you please explain the way you calculated? It will be really helpful for me. Any easy calculation methods? Thanks in advance elSid1 -Its SCFM.Thanks
  3. Rumananoor

    4000 CFM fan with 3 in static - Please check

    Selected 4000 CFM fan with 3 in static for supply air normal application. Please check if my calculation is correct I have a 20”X14” duct with 113ft running and three 90 degree elbows and two 45 degree elbows. Thanks
  4. Rumananoor

    2- Speed Fans ( Car Park )

    Hi All, I have a query regarding car park fans for exhaust and on emergency use. If a fan is designed for car park normal day to day smoke exhaust of 12000 cfm (normal speed) for a given area. How much ratio to be considered in case of emergency smoke exhaust running on (high speed). Kindly...
  5. Rumananoor

    Reversible axial fans are having low efficiency ? why?

    Please clarify why reversible axial fans are having low efficiency respectively comparing with normal operation fans. I have bit confusion is it because the impellers have been modified to allow for reversible operation i.e flow 'A' orientation equals flow 'B' orientation. To achieve this...
  6. Rumananoor

    Sand separator Vs Air Separator

    As I am new in HVAC field could someone explain? Air separator is used in Chilled water system? Where about Sand separator?? Thanks :)

Part and Inventory Search

Back
Top