Page 195 - Centrifugal Pumps Design and Application
P. 195
170 Centrifugal Pumps: Design and Application
Step 2. Find Outlet Conditions
A, Assume constant entropy Si = S 2
B. From P 2 = 1650 psia and S 2 = 0,7877 Btu/lb °R interpolate
tables to find H 2, V 2 and T 2
!
C. Calculate AH, and AH
Step 3, Correct Outlet Conditions For Pump Efficiency
A. With P 2 remaining same calculate H c
B. From HC and P 2 interpolate tables to find V c, S c, and T c
C. Calculate y c and Q 2