Technical Description
Genset
JGS 320 GS-B.L
AB Energy 320-18
Electrical output
1063 kW el.
Emission values
NOx
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< 450 mg/Nm³ (5% O2)
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0.01 Technical Data (at genset) _________________________________________ 3
Main dimensions and weights (at genset)
Connections
4
4
0.02 Technical data of engine ___________________________________________ 5
Thermal energy balance
Exhaust gas data
Combustion air data
Output / fuel consumption
Sound pressure level
Sound power level
5
5
5
6
6
6
0.03 Technical data of generator ________________________________________ 7
Reactance and time constants
7
connection variant 1K _________________________________________________ 8
0.05 Cooling water circuit ______________________________________________ 9
Oil - heat (Engine jacket water cooling circuit)
Engine jacket water - heat (Engine jacket water cooling circuit)
Mixture Intercooler (1st stage) (Engine jacket water cooling circuit)
Mixture Intercooler (2nd stage) (Low temperature circuit)
9
9
9
9
0.10 Technical parameters ____________________________________________ 10
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0.01 Technical Data (at genset)
Data at:
Fuel gas LHV
kWh/Nm³
Energy input
Gas volume
Mechanical output
Electrical output
kW
Nm³/h
*)
kW
[1]
kW
Heat to be dissipated
~ Intercooler 1st stage (Engine jacket water cooling circuit)
~ Intercooler 2nd stage (Low temperature circuit)
~ Lube oil (Engine jacket water cooling circuit)
~ Jacket water
~ Surface heat
ca.
~ Balance heat
Spec. fuel consumption of engine
Lube oil consumption
Electrical efficiency
[2]
el.
[4]
Full
load
5
100%
Part Load
75%
50%
2.607
521
1.095
1.063
2.009
402
821
796
1.410
282
548
529
2,45
~
39,6%
2,57
~
37,5%
[5]
kW
kW
kW
kW
kW
[7]
kW
kWh/kWh
[2]
kg/h
[3]
ca.
%
165
86
118
305
82
50
2,38
0,33
40,8%
*) approximate value for pipework dimensioning
[_] Explanations: see 0.10 - Technical parameters
All heat data is based on standard conditions according to attachment 0.10. Deviations from the standard conditions can result in a
change of values within the heat balance, and must be taken into consideration in the layout of the cooling circuit/equipment
(intercooler; emergency cooling; ...). In the specifications in addition to the general tolerance of +/- 8% on the thermal output a
further reserve of 10% is recommended for the dimensioning of the cooling requirements.
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Main dimensions and weights (at genset)
Length
Width
Height
Weight empty
Weight filled
mm
mm
mm
kg
kg
~ 5.700
~ 1.700
~ 2.300
~ 10.500
~ 11.000
Connections
Jacket water inlet and outlet
Exhaust gas outlet
Fuel gas (at gas train)
Fuel Gas (at genset)
Water drain ISO 228
Condensate drain
Safety valve - jacket water ISO 228
Lube oil replenishing (pipe)
Lube oil drain (pipe)
Jacket water - filling (flex pipe)
Intercooler water-Inlet/Outlet 1st stage
Intercooler water-Inlet/Outlet 2nd stage
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DN/PN
DN/PN
DN/PN
DN/PN
G
mm
DN/PN
mm
mm
mm
DN/PN
DN/PN
80/10
250/10
100/16
100/10
½''
18
2x1½''/2,5
28
28
13
80/10
65/10
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0.02 Technical data of engine
Manufacturer
Engine type
Working principle
Configuration
No. of cylinders
Bore
Stroke
Piston displacement
Nominal speed
Mean piston speed
Filling capacity lube oil
Filling capacity water
Length
Width
Height
Weight dry
Weight filled
Moment of inertia
Direction of rotation (from flywheel view)
Flywheel connection
Radio interference level to VDE 0875
Starter motor output
Starter motor voltage
mm
mm
lit
rpm
m/s
lit
lit
mm
mm
mm
kg
kg
kgm²
kW
V
GE Jenbacher
J 320 GS-C25
4-Stroke
V 70°
20
135
170
48,67
1.500
8,50
370
150
3.320
1.358
2.065
5.000
5.500
8,61
left
SAE 18''
N
9
24
Thermal energy balance
Energy input
Intercooler
Lube oil
Jacket water
Exhaust gas total
Exhaust gas cooled to 180 °C
Exhaust gas cooled to 100 °C
Surface heat
Balance heat
2.607
251
118
305
740
479
615
50
50
kW
kW
kW
kW
kW
kW
kW
kW
kW
Exhaust gas data
Exhaust gas temperature at full load
Exhaust gas mass flow rate, wet
Exhaust gas mass flow rate, dry
Exhaust gas volume, wet
Exhaust gas volume, dry
Max.admissible exhaust back pressure after engine
°C
[8]
kg/h
kg/h
Nm³/h
Nm³/h
mbar
450
5.645
5.223
4.389
3.884
60
Combustion air data
Combustion air mass flow rate
Combustion air volume
Max. admissible pressure drop in front of intake-air filter
basis for exhaust gas data:
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kg/h
Nm³/h
mbar
5.179
4.006
10
natural gas: 100% CH4; biogas 65% CH4, 35% CO2
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Output / fuel consumption
ISO standard fuel stop power ICFN
Mean effe. press. at stand. power and nom. speed
Fuel gas type
Based on methane number
Compression ratio
Min./Max. fuel gas pressure at inlet to gas train
Allowed Fluctuation of fuel gas pressure
Max. rate of gas pressure fluctuation
Maximum Intercooler 2nd stage inlet water temperature
Spec. fuel consumption of engine
Specific lube oil consumption
Max. Oil temperature
Jacket-water temperature max.
kW
bar
MZ
d)
Epsilon
mbar
%
mbar/sec
°C
kWh/kWh
g/kWh
°C
°C
1.095
18,00
Biogas
100
12,50
80 - 200 c)
± 10
10
50
2,38
0,30
90
95
c) Lower gas pressures upon inquiry
d) based on methane number calculation software AVL 3.1
Sound pressure level
Aggregate b)
31,5
Hz
63
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
Exhaust gas a)
31,5
Hz
63
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
dB(A) re 20µPa
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB(A) re 20µPa
dB
dB
dB
dB
dB
dB
dB
dB
dB
95
78
90
92
89
92
90
89
87
90
121
97
108
118
110
113
114
117
115
114
Sound power level
Aggregate
Measurement surface
Exhaust gas
Measurement surface
dB(A) re 1pW
m²
dB(A) re 1pW
m²
117
109
129
6,28
a) average sound pressure level on measurement surface in a distance of 1m according to DIN 45635, precision class 2.
b) average sound pressure level on measurement surface in a distance of 1m (converted to free field) according to DIN 45635,
precision class 3.
Operation with 1200 rpm see upper values, operation with 1800 rpm add 3 dB to upper values.
Engine tolerance ± 3 dB
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0.03 Technical data of generator
Manufacturer
Type
Type rating
Driving power
Ratings at p.f. = 1,0
Ratings at p.f. = 0,8
Rated output at p.f. = 0,8
Rated current at p.f. = 0,8
Frequency
Voltage
Speed
Permissible overspeed
Power factor lagging
Efficiency at p.f. = 1,0
Efficiency at p.f. = 0,8
Moment of inertia
Mass
Radio interference level to VDE 0875
Construction
Protection Class
Insulation class
Temperature (rise at driving power)
Maximum ambient temperature
Total harmonic distortion
kVA
kW
kW
kW
kVA
A
Hz
V
rpm
rpm
%
%
kgm²
kg
°C
%
STAMFORD e)
PE 734 C2 e)
1.550
1.095
1.063
1.051
1.314
1.897
50
400
1.500
2.250
0,8 - 1,0
97,1%
96,0%
36,33
2.967
N
B3/B14
IP 23
H
F
40
1,5
Reactance and time constants
xd direct axis synchronous reactance
xd' direct axis transient reactance
xd'' direct axis sub transient reactance
Td'' sub transient reactance time constant
Ta Time constant direct-current
Tdo' open circuit field time constant
p.u.
p.u.
p.u.
ms
ms
s
2,51
0,15
0,11
10
20
2,23
e) GE Jenbacher reserves the right to change the generator supplier and the generator type. The contractual data of the
generator may thereby change slightly. The contractual produced electrical power will not change.
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0.05 Cooling water circuit
Oil - heat (Engine jacket water cooling circuit)
Nominal output
Max. Oil temperature
Nominal pressure of engine jacket water
Loss of nominal pressure of engine jacket water
Safety valve - max press. set point
kW
°C
bar
bar
bar
118
90
10
0,20
2,50
Engine jacket water - heat (Engine jacket water cooling circuit)
Nominal output
Max. engine jacket water temperature (outlet engine)
Engine jacket water flow rate
Safety valve - max press. set point
kW
°C
m³/h
bar
305
93
26,6
2,50
Mixture Intercooler (1st stage) (Engine jacket water cooling circuit)
Nominal output
Max. inlet cooling water temp. (intercooler)
Nominal pressure of cooling water
Loss of nominal pressure of engine jacket water
Safety valve - max press. set point
kW
°C
bar
bar
bar
165
78,3
10
0,20
2,50
Mixture Intercooler (2nd stage) (Low temperature circuit)
Nominal output
Max. inlet cooling water temp. (intercooler)
Aftercooler water flow rate
Nominal pressure of cooling water
Intercooler water pressure drop
Safety valve - max press. set point
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kW
°C
m³/h
bar
bar
bar
86
50
25,0
10
0,20
2,50
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0.10 Technical parameters
All data in the technical specification are based on engine full load (unless stated otherwise) at specified
temperatures and the methane number and subject to technical development and modifications.
All pressure indications are to be measured and read with pressure gauges (psi.g.).
(1) At nominal speed and standard reference conditions ICFN according to DIN-ISO 3046 and DIN 6271,
respectively
(2) According to DIN-ISO 3046 and DIN 6271, respectively, with a tolerance of + 5 %;
(basis: CH4=60 Vol.%; CO2=40 Vol.%)
(3) Average value between oil change intervals according to maintenance schedule, without oil change
amount
(4) At p. f. = 1.0 according to VDE 0530 REM / IEC 34.1 with relative tolerances
(5) Total output with a tolerance of +/- 8 %
(6) According to above parameters (1) through (5)
(7) Only valid for engine and generator; module and peripheral equipment not considered
(8) Exhaust temperature with a tolerance of +/- 5 %
Radio interference level
The ignition system of the gas engines complies the radio interference levels of CISPR 12 and EN 55011
class B, (30-75 MHz, 75-400 MHz, 400-1000 MHz) and (30-230 MHz, 230-1000 MHz), respectively.
Definition of output
• ISO-ICFN continuous rated power:
Net break power that the engine manufacturer declares an engine is capable of delivering continuously,
at stated speed, between the normal maintenance intervals and overhauls as required by the
manufacturer. Power determined under the operating conditions of the manufacturer’s test bench and
adjusted to the standard reference conditions.
• Standard reference conditions:
Barometric pressure:
1000 mbar (14.5 psi) or 100 m (328 ft) above sea level
Air temperature:
25°C (77°F) or 298 K
Relative humidity:
30 %
• Volume values at standard conditions (fuel gas, combustion air, exhaust gas)
Pressure:
1013 mbar (14.7 psi)
Temperature:
0°C (32°F) or 273 K
Output adjustment for turbo charged engines
Standard rating of the engines is for an installation at an altitude = 500 m (1640.5 ft) and an air intake
temperature = 30°C (86°F).
Derating:
> 500 m (1640.5 ft): up to 1,2 % / 100 m (1,2% / 328 ft)
> 30°C (86°F): up to 1,6% / °C (0.89% / °F) and over 40°C (104°F) 2%/°C (1.11% / °F)
If the actual methane number is lower than the specified, the knock control responds. First the ignition
timing is changed at full rated power. Secondly the rated power is reduced. These functions are carried
out by the engine management system.
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Parameters for the operation of GE Jenbacher gas engines
The following "Technical Instruction of GE JENBACHER" forms an integral part of a contract and must be
strictly observed: TI 1100-0110 – TI 1100-0112
Parameters for using a gas compressor
The gas quantity indicated under the technical data refers to standard conditions with the given calorific
value. The actual volume flow (under operating conditions) has to be considered for dimensioning the gas
compressor and each gas feeding component – it will be affected by:
• Actual gas temperature (limiting temperature according to TI 1000-0300)
• Gas humidity (limiting value according to TI 1000-0300)
• Gas Pressure
• Calorific value variations (can be equated with methane (CH4) variations in the case of biogas)
• The gas compressor is designed for a max. relative under pressure of 15 mbar(g) (0.22 psi) and a inlet
temperature of 40°C (104°F) , if within scope of supply GE Jenbacher
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