Jenbacher JGS 420 Technical Description

02/2017

Technical Description

Genset

JGS 420 GS-B.L

with Island Operation

no special Grid Code

EA

Electrical output

1501

kW el.

Emission values

NOx

< 500 mg/Nm³ (5% O2)

0.01 Technical Data (at genset) __________________________________________ 4

Main dimensions and weights (at genset) 5 Connections 5 Output / fuel consumption 5

0.02 Technical data of engine ___________________________________________ 6

Thermal energy balance 6 Exhaust gas data 6 Combustion air data 6 Sound pressure level 7 Sound power level 7

0.03 Technical data of generator _________________________________________ 8

Reactance and time constants (saturated) 8

connection variant 1K _________________________________________________ 9

0.05 Cooling water circuit _____________________________________________ 10

Oil - heat (Engine jacket water cooling circuit) 10 Engine jacket water - heat (Engine jacket water cooling circuit) 10 Mixture Intercooler (1st stage) (Engine jacket water cooling circuit) 10 Mixture Intercooler (2nd stage) (Low temperature circuit) 10

0.10 Technical parameters_____________________________________________ 11

1.00 Scope of supply - Genset _________________________________________ 12

1.01 Spark ignited gas engine __________________________________________ 13

1.01.01 Engine design ________________________________________________ 13

1.01.02 Additional equipment for the engine (spares for commissioning) ______ 14

1.01.03 Engine accessories ____________________________________________ 15

1.01.04 Standard tools (per installation)__________________________________ 15

1.02 Generator-low voltage ____________________________________________ 15

1.03 Module accessories ______________________________________________ 17

1.03.01 Engine jacket water system _____________________________________ 19

1.03.02 Automatic lube oil replenishing system incl. extension tank __________ 19

1.05.01 Gas train <500mbar ____________________________________________ 19

1.07 Painting ________________________________________________________ 20

1.11 Engine generator control panel per module- Dia.ne XT4 incl. Single synchronization of the generator breaker ________________________________ 20

Touch Display Screen: 21 Central engine and module control: 25 Malfunction Notice list: 26

1.11.06 Remote Data-Transfer with DIA.NE XT4 ___________________________ 28

1.20.03 Starting system _______________________________________________ 31

1.20.05 Electric jacket water preheating __________________________________ 32

1.20.08 Flexible connections ___________________________________________ 32

2.00 Electrical Equipment _____________________________________________ 33

2.02 Grid monitoring device ___________________________________________ 33

3.10.01 Cooling system - low temperature circuit __________________________ 34

3.10.02 Cooling system - high temperature circuit _________________________ 34

4.00 Delivery, installation and commissioning ____________________________ 35

4.01 Carriage 35

4.02 Unloading 35

4.03 Assembly and installation 35

4.04 Storage 35

4.05 Start-up and commissioning 35

4.06 Trial run Error! Bookmark not defined.

4.07 Emission measurement (exhaust gas analyser) Error! Bookmark not defined.

5.01 Limits of delivery - Genset _________________________________________ 35

5.02 Factory tests and inspections ______________________________________ 36

5.02.01 Engine tests 36

5.02.02 Generator tests 36

5.02.03 Module tests 37

5.03 Documentation __________________________________________________ 37

0.01 Technical Data (at genset)

Data at:

Full load

Part Load

Fuel gas LHV

kWh/Nm³

4.5

100%

75%

50%

Energy input

kW

[2]

3,538

2,726

1,914

Gas volume

Nm³/h

*)

786

606

425

Mechanical output

kW

[1]

1,540

1,155

770

Electrical output

kW el.

[4]

1,501

1,125

747

Heat to be dissipated

[5]

~ Intercooler 1st stage (Engine jacket water cooling circuit)

kW

[9]

286

~ Intercooler 2nd stage (Low temperature circuit)

kW

72

~ Lube oil (Engine jacket water cooling circuit)

kW

211

~ Jacket water

kW

407

~ Surface heat

ca.

kW

[7]

128

Spec. fuel consumption of engine electric

kWh/kWel.h

[2]

2.36

2.42

2.56

Spec. fuel consumption of engine

kWh/kWh

[2]

2.30

2.36

2.49

Lube oil consumption

ca.

kg/h

[3]

0.31 ~ ~

Electrical efficiency

%

42.4%

41.3%

39.0%

*) 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 +5 % is recommended for the dimensioning of the cooling requirements.

Main dimensions and weights (at genset)

Length

mm

~ 7,100

Width

mm

~ 1,900

Height

mm

~ 2,200

Weight empty

kg

~ 16,400

Weight filled

kg

~ 17,100

Connections

Jacket water inlet and outlet

DN/PN

80/10

Exhaust gas outlet [D]

DN/PN

300/10

Fuel Gas (at genset)

DN/PN

125/16

Water drain ISO 228

G

½''

Condensate drain

mm

18

Safety valve - jacket water ISO 228

DN/PN

2x1½''/2,5

Lube oil replenishing (pipe)

mm

28

Lube oil drain (pipe)

mm

28

Jacket water - filling (flex pipe)

mm

13

Intercooler water-Inlet/Outlet 1st stage

DN/PN

80/10

Intercooler water-Inlet/Outlet 2nd stage

DN/PN

65/10

Output / fuel consumption

ISO standard fuel stop power ICFN

kW

1,540

Mean effe. press. at stand. power and nom. speed

bar

20.17

Fuel gas type Biogas

Based on methane number | Min. methane number

MZ d)

135 | 117

Compression ratio

Epsilon

12.5

Min./Max. fuel gas pressure at inlet to gas train

mbar

120 - 200 c)

Allowed Fluctuation of fuel gas pressure

%

± 10

Max. rate of gas pressure fluctuation

mbar/sec

10

Maximum Intercooler 2nd stage inlet water temperature

°C

55

Spec. fuel consumption of engine

kWh/kWh

2.30

Specific lube oil consumption

g/kWh

0.20

Max. Oil temperature

°C

85

Jacket-water temperature max.

°C

95

Filling capacity lube oil (refill)

lit

~ 437

c) Lower gas pressures upon inquiry

d) based on methane number calculation software AVL 3.2

0.02 Technical data of engine

Manufacturer

GE Jenbacher

Engine type

J 420 GS-B25

Working principle

4-Stroke

Configuration V 70°

No. of cylinders 20

Bore

mm

145

Stroke

mm

185

Piston displacement

lit

61.10

Nominal speed

rpm

1,500

Mean piston speed

m/s

9.25

Length

mm

3,750

Width

mm

1,580

Height

mm

2,033

Weight dry

kg

7,200

Weight filled

kg

7,900

Moment of inertia

kgm²

11.64

Direction of rotation (from flywheel view)

left

Radio interference level to VDE 0875

N

Starter motor output

kW

13

Starter motor voltage

V

24

Thermal energy balance

Energy input

kW

3,538

Intercooler

kW

358

Lube oil

kW

211

Jacket water

kW

407

Exhaust gas cooled to 180 °C

kW

597

Exhaust gas cooled to 100 °C

kW

787

Surface heat

kW

74

Exhaust gas data

Exhaust gas temperature at full load

°C [8]

421

Exhaust gas temperature at bmep= 15.1 [bar]

°C

~ 443

Exhaust gas temperature at bmep= 10.1 [bar]

°C

~ 471

Exhaust gas mass flow rate, wet

kg/h

7,943

Exhaust gas mass flow rate, dry

kg/h

7,391

Exhaust gas volume, wet

Nm³/h

6,204

Exhaust gas volume, dry

Nm³/h

5,517

Max.admissible exhaust back pressure after engine

mbar

60

Combustion air data

Combustion air mass flow rate

kg/h

7,334

Combustion air volume

Nm³/h

5,675

Max. admissible pressure drop at air-intake filter

mbar

10

Sound pressure level

Aggregate a)

dB(A) re 20µPa

97

31,5 Hz

dB

79

63 Hz

dB

87

125 Hz

dB

98

250 Hz

dB

95

500 Hz

dB

91

1000 Hz

dB

86

2000 Hz

dB

88

4000 Hz

dB

92

8000 Hz

dB

89

Exhaust gas b)

dB(A) re 20µPa

115

31,5 Hz

dB

95

63 Hz

dB

117

125 Hz

dB

115

250 Hz

dB

113

500 Hz

dB

108

1000 Hz

dB

105

2000 Hz

dB

108

4000 Hz

dB

109

8000 Hz

dB

107

Sound power level

Aggregate

dB(A) re 1pW

117

Measurement surface

m²

110

Exhaust gas

dB(A) re 1pW

123

Measurement surface

m²

6.28

a) average sound pressure level on measurement surface in a distance of 1m (converted to free field) according to DIN 45635, precision class 3.

b) average sound pressure level on measurement surface in a distance of 1m according to DIN 45635, precision class 2.

The spectra are valid for aggregates up to bmep=20 bar. (for higher bmep add safety margin of 1dB to all values per increase of 1 bar pressure).

Engine tolerance ± 3 dB

0.03 Technical data of generator

Manufacturer

Leroy-Somer e)

Type LSA 52.3 L9 e)

Type rating

kVA

1,870

Driving power

kW

1,540

Ratings at p.f. = 1,0

kW

1,501

Ratings at p.f. = 0.8

kW

1,486

Rated output at p.f. = 0.8

kVA

1,857

Rated reactive power at p.f. = 0.8

kVar

1,114

Rated current at p.f. = 0.8

A

2,681

Frequency

Hz

50

Voltage V 400

Speed

rpm

1,500

Permissible overspeed

rpm

1,800

Power factor (lagging - leading)

0,8 - 1,0

Efficiency at p.f. = 1,0

%

97.5%

Efficiency at p.f. = 0.8

%

96.5%

Moment of inertia

kgm²

48.30

Mass

kg

4,489

Radio interference level to EN 55011 Class A (EN 61000-6-4)

N

Ik'' Initial symmetrical short-circuit current

kA

26.51

Is Peak current

kA

67.49

Insulation class H

Temperature (rise at driving power)

F

Maximum ambient temperature

°C

40

Reactance and time constants (saturated)

xd direct axis synchronous reactance

p.u.

2.01

xd' direct axis transient reactance

p.u.

0.20

xd'' direct axis sub transient reactance

p.u.

0.10

x2 negative sequence reactance

p.u.

0.11

Td'' sub transient reactance time constant

ms

22

Ta Time constant direct-current

ms

28

Tdo' open circuit field time constant

s

2.99

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.

connection variant 1K

0.05 Cooling water circuit

Oil - heat (Engine jacket water cooling circuit)

Nominal output

kW

211

Max. Oil temperature

°C

85

Loss of nominal pressure of engine jacket water

bar

0.50

Safety valve - max press. set point

bar

2.50

Engine jacket water - heat (Engine jacket water cooling circuit)

Nominal output

kW

407

Max. engine jacket water temperature (outlet engine)

°C

90

Engine jacket water flow rate

m³/h

39.2

Safety valve - max press. set point

bar

2.50

Mixture Intercooler (1st stage) (Engine jacket water cooling circuit)

Nominal output

kW

286

Max. inlet cooling water temp. (intercooler)

°C

74.7

Nominal pressure of cooling water / (max. operating pressure)

PN

10

Loss of nominal pressure of engine jacket water

bar

0.30

Safety valve - max press. set point

bar

2.50

Mixture Intercooler (2nd stage) (Low temperature circuit)

Nominal output

kW

72

Max. inlet cooling water temp. (intercooler)

°C

55

Aftercooler water flow rate

m³/h

20.0

Nominal pressure of cooling water / (max. operating pressure)

PN

10

Intercooler water pressure drop

bar

0.80

Safety valve - max press. set point

bar

2.50

The final pressure drop will be given after final order clarification and must be taken from the P&ID order documentation.

10/38

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 %. Efficiency performance is based on a new unit (immediately upon commissioning).Effects of

degradation during normal operation can be mitigated through regular service and maintenance work; reference value --> 65%CH4 (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 (at p. f. = 0,8)

,(guiding value) (8) Exhaust temperature with a tolerance of ±8 % (9) Intercooler heat on:

* standard conditions (Vxx) - If the turbocharger design is done for air intake temperature > 30°C

w/o de-rating, the intercooler heat of the 1st stage need to be increased by 2%/°C starting from 25°C.

Deviations between 25 – 30°C will be covered with the standard tolerance.

* Hot Country application (Vxxx) - If the turbocharger design is done for air intake temperature >

40°C w/o de-rating, the intercooler heat of the 1st stage need to be increased by 2%/°C starting from

35°C. Deviations between 35 – 40°C will be covered with the standard tolerance.

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

11/38

Standard rating of the engines is for an installation at an altitude ≤ 0 m and an air intake temperature ≤ 35 °C (T1)

Maximum room temperature: 50°C (T2) -> engine stop

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. Exceedance of the voltage and frequency limits for generators according to IEC 60034-1 Zone A will lead to a derate in output.

Parameters for the operation of GE Jenbacher gas engines

The genset fulfils the limits for mechanical vibrations according to ISO 8528-9. The following "Technical Instruction of GE JENBACHER" forms an integral part of a contract and must be strictly observed: TA 1000-0004, TA 1100 0110, TA 1100-0111, and TA 1100-0112. Transport by rail should be avoided. See TA 1000-0046 for further details

Failure to adhere to the requirements of the above mentioned TA documents can lead to engine damage and may result in loss of warranty coverage.

Parameters for the operation of control unit and the electrical equipment Relative humidity 50% by maximum temperature of 40°C. Altitude up to 2000m above the sea level.

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

1.00 Scope of supply - Genset

12/38

Jenbacher JGS 420 Technical Description

Specifications and Main Features

Frequently Asked Questions

User Manual