BERNOULLI’S EQUATION Fluid FlowSummaryThe main points of this chapter are summarized below.Bernoulli’s Equation SummaryBernoulli’s equation is an application of the First Law of Thermodynamics.Bernoulli’s equation is an application of the general energy equation to a steadyflow system in which no work is done on or by the fluid, no heat is transferredto or from the fluid, and no change occurs in the internal energy of the fluid.Head is the term used to describe pressure exerted on or by a fluid.As fluid flows in a piping system, changes in elevation, velocity, and pressureheads must be consistent so that Bernoulli’s equation is satisfied.Bernoulli’s equation can be modified to take into account friction losses andpump work.A venturi can be used to determine mass flow rates due to changes in pressureand fluid velocity.The volumetric flow rate through a venturi is directly proportional to the squareroot of the differential pressure between the venturi’s inlet and its throat.HT-03 Page 30 Rev. 0

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