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2007.08.15
2007.08.15
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IGV
Inlet Guide Vane vs. Butterfly ValveAn IGV offers about 3.5% to
4% BHP better power reduction than a butterfly valve, but only at
maximum "safe" turndown (throttle). Lower temperatures offer
better, improved savings.
Payback:We found the current payback period for one IGV to be
close to eleven years. In some situations, where several IGV are
purchased and installed, the payback period was calculated to be as
much as 43 years or more.
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4 Four lobe & tapered land thrust bearing
Titing pad journal bearing
Horizontally split gear box
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()
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()
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SAMSUNG
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10~20 (Surge) 60(Stonewall)
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(7%)
- 40-50% Full Load power
stabilization (3 minutes per cycle)
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:
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ICFM
ACFM
0,97 bar
0,97 bar
ASMEPTC 10
ASMEPTC 9
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(ASME PTC 9),
(ASME PTC10 - )
()
8-9 %
Seal leakage of over 12-15% is noticed in some new TA
2000/3000
series machines
- ISO 1217
ACFM = ICFM - Leakage losses (7.48% for Joy) - =
FAD = ACFM - Intake losses (3% for 1 bar reference intake vs
0.97 bar) - = FAD
FAD ICFMx(100% - 10.48 %)
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IR Centac data
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1
(300HP) (50kg / cm2)
100
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2
Surge
380~460600HP
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High Turbo Turbo type is goodEfficiency in a large capacity.
Low Screw(Oil free)
Expencive Any capacity is advantageousMaintenanse in the
maintenance cost
Cheap the turbo type.
Expencive The Screw becomes cheapPrice when becoming small.
Cheap
270kW In an comprehensive evaluation,Good the screw type of the
small size
is good and the turbo typeBad of large size is good.
This figure is an image chart. 0 300 600kW
Rated power
Evaluation
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2.1 CDA
Based on100psi 5yr 8760 hrs/yr
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2.2 CDA
40%40%
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2.3 CDA
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/
2.4 CDA
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3.1
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3.2 CDA Air Loss Map
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3.2.1
75kw (100hp)107bar2,00024,9509,900
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3.2.2
1.241.00 100hp22,000268,000102
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3.2.3
10% 5%
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3.2.4
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3.2.5
25%
12%
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3.2.6
1/428,000100psig61%104 0.6163.4CFM4cfm/hp15.9hp23
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3.3 CDA
26.3% 59.3% 0.9
2.0% 10.6% 1.3
/
10.5% 33.5% 0.8
7.6% 33.6% 2.7
2.6% 15.8% < 0.1
(per plant)
43.7% 65.0% 0.8
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CDA
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4.1 -(Pressure Band)
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4.2
,IGVBOV,Surge
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4.3-
CPU21330%
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50
4.4
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0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
:5
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()
0
200
400
600
800
1000
1200
1400
90 95 100 105 110 115 120 125
(PSIG)
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
(CFM/HP)
(CFM) (HP) (CFM/HP)
AP-11 (Atlas ZR-250 ,300HP) 91418:
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(-1)
0
50
100
150
200
250
300
350
400
50 55 60 65 70 75 80 85 90 95 100
(PSIG)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
(CFM
/HP)
(CFM) (HP) (CFM/HP)
NO.6( SA-475W , 75HP , 371CFM , 1995) 9195:
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(-2)
0
50
100
150
200
250
300
350
400
65 70 75 80 85 90 95 100
(PSIG)
0.0
1.0
2.0
3.0
4.0
(CFM/HP)
(CFM) (HP) (CFM/HP)
--D(Hitachi OSP-55E6A2 ,55kW) 92820:
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()
100HP()
0
50
100
150
200
250
300
350
400
450
500
0 500 1,000 1,500 2,000 2,500 3,000 3,500
(RPM)
(HP)
(CFM
)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
(CFM) (HP) (CFM/HP)
(CFM
/HP)
100psig
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: 911010
#1 #2 #3 #4 #5 ()
Quince
QMA125 SGE-14S SA-4125W2 SGE-14S SA-4100W2
--- 1989 2002 1987 2000
(CFM) 565 565 565 459 494 2648
(HP) 125 125 125 100 100 575
(psi) --- 88 87 83 85.2(psi) --- 96.7 101 92.3 96.6(kw) --- 15.5
28.8 16 33
(%) --- 27.7 28.9 21.0 39.2
(psi)
()72.5 96 96.7 85.3 94.6
(CFM) 407.7 252.7 361.4 339.1 395.5 1756.4
(HP) 136.2 75.1 133.5 102.1 112.9 559.8
(CFM/HP) 2.99 3.37 2.71 3.13 3.50
(psi) 100 100 100 100 100
(HP)* 156.8 76.5 135.5 110.3 115.9
(CFM/HP)** 2.60 3.30 2.67 3.08 3.41
* 1KG/CM2(14.2PSI),8%,7KG/CM2
** 1KG/CM2(14.2PSI),8%,7KG/CM2
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Y-Axis
X-Axis
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
100PS
IG
(CFM/H
P)
3.3
3.5
CFM
/HP
3.7
4.0
CFM
/HP
4.0
4.2
CFM
/HP
4.2
4.7
CFM
/HP
4.7
4.9
CFM
/HP
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VS--
#2--100hp
50
55
60
65
70
75
80
85
90
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
(psi)
70
75
80
85
90
95
100
105
110
(psi)
(0320-0326) (0417-0423)
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3.5 ACMSACMS
RS485
Windows
Windows
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3.6-1
1.0bar6%8%
2D
3D
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3.6-2
8bar
P 0.04 bar
P 0.04 bar
P 0.03 bar
P 0.10 bar
5bar
P 1.5Pmax
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3.7-1
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3.7-2
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3.8
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3.9
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3.9
7.00bar IN
6.90bar OUT
7.00bar IN
6.60bar OUT
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3.10
(2)6786
EVERAIR No Loss Drain
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3.11 Purge Air Loss
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3.12 Purge Air Loss
ESCO O
PTION
B
ESCO O
PTION
B
BASE L
INE
BASE L
INE
MEASUR
EMENT
MEASUR
EMENT
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34%34%
3.13 Purge Air Loss 1
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41%41%
3.14 Purge Air Loss 2
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36%36%
3.15 Purge Air Loss 3
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3.16
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3.17
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- 1
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75
- 2
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ESCO
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M&V OPTION A
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4.1-1
5~10?
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4.1-2
GO!
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4.1-2 -
()610HP1,071321,2191,021HP1,792537,64940%
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4.1-3 -
1. 2. 23~40%
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4.2
++++0.1K+622HP999299,55544%
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4.3-1
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4.3-2()
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4.3-3()
KW()
0.1K
ON/OFF
KW
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35%CDALess Air Loss0.8
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TAESCO
[email protected] Gino Huang
http://emis.erl.itri.org.tw/news/trainUnit/list.asp
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