Page 411 - Reciprocating Compressors Operation Maintenance
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396 Reciprocating Compressors: Operation and Maintenance
from the residual heat in the cylinder and the varying compressibility of
the gas. A better formula has been developed as shown in Equation A-10:
= 100-L-Cl%- (A-10)
Z 2 P,
where L is taken from Figure A-3.
Basic Equations
Reciprocating compressor calculations are performed in stages. There-
fore, the number of stages must be determined first. This is based on lim-
NON-LUBRICATED
COMPRESSORS, MULTIPLY
THE LOSS CORRECTION
BY 2.
l.O 2.O 3.O 4.O 5.O
RATIO Or COMPRESSION
FIGURE A-3. Loss correction "L" at different compression ratios and suction
pressures.
