81MW GE Frame 7EA Gas
Turbine Generators Sets, New Surplus
Available Immediately.
60Hz. DLN, Natural Gas, Heat Rate 10,537 BTU/kWhr.
Speedtronic Mark V Controls.
For Sale (4 Available)
(GE Frame 7EA Performance Data) (GE Frame 7EA Scope of Supply) (GE Frame 7EA General Plant Description)
GE Frame 7EA Performance Data
2.1 Guarantee Performance
Net Output (base) kW 81,330
Net Heat rate (base) kJ/kWh 10,537
2.1.1.1 Design Basis
Elevation 886ft
Ambient temperature 59°F
Relative humidity 60%
Inlet system pressure drop 3.5in. H2O
Exhaust system pressure 5.5in. H2O
Natural gas fuel heating value (LHV) 20,977 Btu/lb
Combustion system type DLN
The following also apply to the performance guarantees:
• Performance is measured at the generator terminals and includes allowances for excitation power and the shaft-driven equipment normally supplied.
• Guarantees are based on new and clean condition of the gas turbine. If more than 100 fired hours have elapsed before a performance test is to be conducted, a GE representative shall have the right to inspect the unit to assure that the power plant is in new and clean condition.
• Guarantees are based on a site test conducted as described in the Reference Documents chapter and per the Terms and Conditions of this offer.
• Performance curves for both the turbine and generator are included in the Performance Curves section of this proposal. From these curves it is possible to determine estimated performance at ambient temperatures, percent loads, and barometric conditions differing from those listed in the above design basis table. These curves are used during the site performance test to correct performance readings back to the site conditions at which the performance guarantee was provided.
Natural Gas Analysis % Vol
N2 0.3580
CO2 0.6320
CH4 97.235
C2H6 1.4640
C3H8 0.1700
C4H10 0.0820
C5H12 0.0290
C6H14 0.0310
Total 100.00
2.1.2 Emissions Guarantees
Measurement Natural Gas(value/load range)
NOx @ 15% O2 (ppmvd) 9*
CO, (ppmvd) 25*
Particulates (lb/hr) 5.0
Ambient Temperature (F)
2.1.3 Near Field Noise Values
The near field sound pressure level (SPL) contribution from the GE supplied gas turbine equipment is guaranteed not to exceed 96 dBA when measured 3 feet (1 meter) in the horizontal plane and at an elevation of 5 feet (1.5 meters) above machine base line or personnel platforms with the equipment operating at base load in accordance with contract specifications.
2.1.3.1.1 Basis of Guarantee
The following also apply to the above guarantee:
• Testing methodology shall be based on the latest version of ANSI/ASME PTC 36. The final result shall be the arithmetic average of the SPL’s measured around the equipment after background and other corrections have been applied. The equipment shall be in compliance if the final result does not exceed the noise limit(s) specified above.
• Equipment shall be operated in a new and clean condition as intended by the designers when measurements are taken. All access compartments, doors, panels and other temporary openings shall be fully closed; all silencing hardware shall be fully installed; all systems designed to be airtight shall be sealed.
• If the above guaranteed SPL exceeds the measured background noise by 10 dBA, no correction shall be necessary. Otherwise, corrections to the measured SPL shall be made per ANSI/ASME PTC 36 procedures. Background noise is defined as the noise measured with all GE supplied equipment off and all other plant equipment on.
• Intermittent noises such as steam safety blow off valves and filter pulse noise are not included in the above guarantee.
• Measurements shall be taken 3 feet (1 meter) away from the outermost surfaces of equipment, including piping, conduit, framework, barriers and personnel protection devices if provided.
• Measurements shall not be taken in any location where there is an airflow velocity greater than 5 feet per second (1.5 meters per second), including nearby air intakes or exhausts.
• Free field conditions must be prevalent at measurement locations. Testing and for and corrections to a free field shall be per ANSI/ASME PTC 36.
• Testing shall be done according to a test plan agreed to by both the customer and GE. Such a plan shall be submitted to both the customer and GE at least 30 days prior to noise compliance testing. The test results shall be submitted in the form of a test report that shall be made available to both the customer and GE. Measurement responsibility shall be stated in the contract. If the customer has responsibility for the compliance measurements, GE reserves the right to audit or parallel these measurements.
2.2 Estimated Performance
PSE&G / MORRISTOWN INDIANA
ESTIMATED PERFORMANCE PG7121(EA)
Load
Condition
BASE
BASE
BASE BASE
Exhaust Pressure
Loss inches
Water
5.5
5.5
5.5
5.5
Ambient
Temp.
Deg
F.
0.
20.
59.
94.
Fuel
Type
Cust Gas Cust Gas Cust
Gas Cust Gas
Fuel LHV
Btu/lb
20,977
20,977
20,977 20,977
Fuel Temperature
** Deg
F
80
80
80
80
Output
kW
98,490.
92,790.
81,700. 71,510.
Heat Rate (LHV)
Btu/kWh
10,120.
10,220.
10,490. 10,860.
Heat Cons. (LHV) X 106 Btu/h
996.7
948.3
857.
776.6
Exhaust Flow X 103
lb/h
2627.
2517.
2306. 2109.
Exhaust
Temp.
Deg
F.
954.
969.
998.
1023.
Exhaust Heat(LHV) X106 Btu/h
622.9
595.9
545.5 502.5
EMISSIONS
NOx
ppmvd @ 15%O2
9.
9.
9.
9.
NOx
AS NO2
lb/h
37.
35.
31.
28.
CO
ppmvd
25.
25.
25.
25.
CO
lb/h
60.
58.
53.
47.
UHC
ppmvw
7.
7.
7.
7.
UHC
lb/h
10.
10.
9.
8.
VOC
ppmvw
1.4
1.4
1.4
1.4
VOC
lb/h
2.
2.
1.8
1.6
Particulates
lb/h
5.0
5.0
5.0
5.0
PM10
lb/h
10.0
10.0
10.0
10.0
EXHAUST ANALYSIS % VOL.
Argon
0.91
0.92
0.90
0.87
Nitrogen
75.55 75.46
74.88 73.19
Oxygen
13.90 13.93
13.87 13.53
Carbon Dioxide
3.25
3.22
3.17
3.12
Water
6.40
6.48
7.19
9.30
SITE CONDITIONS
Elevation
ft.
886.0
Site Pressure
psia
14.24
Inlet Loss
in Water 3.5
Exhaust Loss
in Water 5.5 @ ISO Conditions
Relative Humidity
% 60
Application
7A6 Air-Cooled Generator
Combustion System
9/42 DLN Combustor
Emission information based on GE recommended measurement methods. NOx emissions are corrected to 15% O2 without heat rate correction and are not corrected to ISO reference condition per 40CFR 60.335(c)(1). NOx levels shown will be controlled by algorithms within the SPEEDTRONIC control system.
** Based on the submitted fuel analysis, the min fuel temp including the 50F superheat requirement is 66F. This performance is based on a nominal fuel temp is 80F.
IPS- 91638 version code- 2 . 4 . 0 Opt: N 71210500
DARGUSFR 3/9/01 10:16 0 20 59 94 gas at 60rh - NET W 80f fuel.dat
2.3 Generator Performance Specifications
2.3.1 Performance Rating Conditions
Measurement Value
Elevation 886 ft
Stator insulation Class F
Rotor insulation Class F
Inlet air temperature See curve 91638G-7a
Ventilation 57000 ft3/min
Rating standards ANSI
2.3.2 Performance Rating, Synchronous Generator
Note: Design:Following values based on generator design number 91638G
Measurement Base
kVA 100,100
Power Factor 0.85
kW 85,085
rpm 3600
Number of poles 2
Number of phases 3
Frequency (Hz) 60
Voltage 13.8 kV
Amperes 4188
Connection WYE
Short Circuit Ratio 0.51
Temperature Rating
(total temperature at base load, with temp stabilized?Value
Armature coils (by temperature detector)
110°C
Collector (by thermometer)
125°C
Field coils (by resistance)
125°C
Dielectric Tests
(between coils and frame, ac voltage for 1
minute)/Value
Armature
28,600V
Field 1500V
Excitation (maximum required)
Value
kW
280
Voltage 270
Calculated Generator Reactances (base load)/Value
Xdi 2.0
X'di 0.23
X'dv 0.215
X''dv 0.135
X2v 0.135
X0i 0.10
