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Wednesday, November 13, 2013

Plumbing Systems and Water supply

Systems of Plumbing:

http://civilatwork.blogspot.in/2013/03/building-drainage-systems-of-plumbing.html

Hazen -Williams Formula

used for pipes larger than 2" and smaller than 6' in dia

v = 1.32.Ch.R^0.63.S^0.54
v= average velocity ft/s
Ch=Hazen Williams Coefficient
R=Hydraulic radius of flow conduit(ft)
s=ratio of hL/L, energy loss/head lenghth of conduit(ft/ft)

in SI Units

v = 0.85.Ch.R^0.63.S^0.54
v= average velocity(m/s)
Ch=Hazen Williams Coefficient
R=Hydraulic radius of flow conduit(m)
s=ratio of hL/L, energy loss/head lenghth of conduit(m/m)

Volume flow rate Q= Av




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3 comments:

  1. UnknownJanuary 16, 2016 at 11:34 PM

    In a 50 meter section of a waste water pipe, if the gradient is 1 in 80, then the fall in millimeter is

    how solve this???

    ReplyDelete

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