Transcript Thermodynamics I - Southern Polytechnic State University

Example
 Crude oil pipeline
 Fire protection system iterative
approach
Parallel Pipelines
 Flow
 Head loss
System Head Curve
 Fixed head
 Variable head
Pump Curve
 Discharge head vs discharge rate
 Shut-off head
 Free discharge
Operating Point
 Intersection pump and system head
curves
 Available flow rate
Turbomachinery
 Rotating element connected to a shaft
 Turbine: device to extract energy
from fluid stream. Pressure decrease.
 Pump, fan, compressor: devices to
add energy to fluid stream. Pressure
increase.
 Steady state: rotational speed of
rotor does not vary.
Moving gases
 Fans
 Blowers
 Compressors
Moving liquids
 Pump
• Positive displacement
• Kinetic/dynamic – centrifugal pump
PD pump
 High discharge pressure : PRV
needed
 High viscosity
 Shear sensitive
 Relatively low volume flow
 Self- priming
Positive Displacement Pumps
Fluid Power
Elevators
Front-end loaders
Dump trucks
Fork lifts
Aircraft control
surfaces
 Landing gear
 Dentist drill
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 Mining
 Solvent coating
 Agriculture
Radial pump
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Centrifugal
Chemical manufacture
Petroleum refining
Pulp & paper
Water treatment
Chillers for A/C
Assignment
 Chapter 13
References
Images & examples
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Mechanics of Fluids, 3rd Edition, Potter & Wiggert,
Brooks & Cole
Applied Fluid Mechanics, 6th Edition, Mott, Prentice Hall
Engineering Fluid Mechanics, 5th Edition Crowe, &
Roberson, Wiley
Fluid Mechanics Cengel & Cimbala McGraw Hill