Page 60 - Compression Machinery for Oil and Gas

Centrifugal Compressors Chapter 3 51

Oil inlet Oil inlet

X
2

X

Filler plate or
shim optional

80% of X
FIG. 3.22 Self-equalizing tilting pad thrust bearing with directed lubrication. (Courtesy of Kings-
bury, page 50 of “LEG Bearings, Thrust and Journal,” Kingsbury, Inc.)

compressors) describes the interchangeability of two forms of energy: static
pressure and velocity.
The incompressible formulation of the Bernoulli’s law for a frictionless, sta-
tionary, and adiabatic flow without any work input is:
ρ
2
p t ¼ p + c ¼ const
2
For compressible flows, the equation becomes
c 2
h t ¼ h + ¼ const
2