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Unformatted text preview: b , the bends loss coefficient. Loss coefficients are unitless variables associated with head loss in pipe components. (2) h b = Head loss due to bend K b = Loss coefficient of a given bend V = Entrance velocity of fluid Sudden expansions and contractions encountered in pipe networks cause turbulence that create energy losses across the expansion or contraction. Head losses due to contraction can be calculated by using Equation 3. Head losses due to expansion can be estimated by equation 4. (3) h c = Head loss due to contraction K c = Loss coefficient of contraction Contraction energy losses are a function of the exit velocity, V 2 and the loss coefficient for contraction, K c . (4) h x = Head loss due to expansion Expansion energy losses are a function of entrance and exit velocity, V 1 and V 2 respectively....
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This note was uploaded on 11/17/2011 for the course ENGINEERIN 1 taught by Professor Cag during the Spring '08 term at Rowan.
- Spring '08