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

Fluid Power  Elevators  Front-end loaders  Dump trucks  Fork lifts  Aircraft control surfaces  Landing gear  Dentist drill  Mining  Solvent coating  Agriculture

Positive Displacement Pumps

Positive displacement  Rotary piston  Swash plate

Fluid Power  Mechanical efficiency  Volumetric efficiency  Conversion factors

Radial pump  Centrifugal Chemical manufacture Petroleum refining Pulp & paper Water treatment Chillers for A/C

Pump Curve  Discharge head vs discharge rate  Shut-off head  Free discharge

System Head Curve  Fixed head  Variable head

Operating Point  Intersection pump and system head curves  Available flow rate

Assignment  Chapter 13

References  Images & examples Mechanics of Fluids, 3rd Edition, Potter & Wiggert, Brooks & Cole Applied Fluid Mechanics, 6 th Edition, Mott, Prentice Hall Engineering Fluid Mechanics, 5 th Edition Crowe, & Roberson, Wiley Fluid Mechanics Cengel & Cimbala McGraw Hill