# MMET 303 Exam II Review.pdf - MMET 303 Exam II Review...

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MMET 303Exam II ReviewClosed bookAllowed to bring:Equation sheet (double-sided is ok)Moody diagram, if you have oneTwo-sided Solution Methods handoutCalculatorMott’s Chapters 8 –12Homeworks: 58
Energy EquationEnergyin= EnergyoutEnergyin+ Gains - Losses = EnergyouthA= Energy added to the fluid by apumphR= Energy removed from the fluid bymotors, etc.hL= Energy losses due tofriction and minor lossesPzvghhhPzvgPzvghPzvghhARLARL11122222111222222222JJJJ±±±²²±±±±±±±±±4
Fluid LossesFluidCharacteristicLaminarTurbulentNeed to know:VelocityPipe DiameterViscosityDensityNeed to know:VelocityPipe DiameterViscosityDensityRoughness5
Reynolds NumberRe***vDvDPIPEPIPEUPQRe < 2000Laminar FlowRe > 4000 Turbulent2000 < Re < 4000 Critical Region or TransitionalForces_ViscousForces_InertiaRe6
Energy loss due to frictionDue to flowing fluidProportional to velocity head:Proportional to the ratio Length of Pipe/Diameter ofPipe (L/D)Darcyequation:hL= Energy loss due to friction, N-m/Nor lb-ft/lbL = length of flow stream or pipe, m

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