Screw Compressor
5
Adiabatic Efficiency pressure ratio Adiabatic Eff 1 10 2 75 3 83 4 77 5 72 6 68 7 63 1 2 3 4 5 0 10 20 30 40 50 60 70 80 90
description
good material
Transcript of Screw Compressor
Adiabatic Efficiency
pressure ratio Adiabatic Eff1 102 753 834 775 726 687 63
1 2 3 4 5 6 7 80
10
20
30
40
50
60
70
80
90
Column D
1 2 3 4 5 6 7 80
10
20
30
40
50
60
70
80
90
Column D
ROTARY SCREW COMPRESSOR POWER CALCULATION
Where,
----- PressuresQ ---- Gas flow ratesK ---- Gas properties
---- Adiabatic efficiency
------ Mechanical losses
----- Power (HP)
P1, P
2
Ea
WL
WR
K ( P2/P
1)k-1/k - 1
WR = P
1Q x --------- x ---------------------- + W
L
K-1 Ea
ROTARY SCREW COMPRESSOR CAPACITY
ICFM = D3 (L/D) (GR) (RPM) (E
V /C)
CENTRIFUGAL COMPRESSOR POWER CALCULATION
V22 - V1
2 Z2 - Z1 hp = P
1Q x[ CP (t
2 - t
1) + ------------ x ---------------------- + W
L
K-1 50,000 778
