1. The Gas Engine 18V51/60G Spark Ignited engine with a power output of 18.9 MWmech

2. Disclaimer
4/1/2017
[Optional Footer]

3. The Gas Engine 18V51/60G MDT Four-stroke stationary Gas Engine Portfolio
51/60G rpm
18.9 MW
35/44G rpm
10.6 MW
Gas Engines
32/40G rpm
8.1 MW
51/60DF rpm
8.8 – 17.6 MW
Dual Fuel Engines
32/40DF rpm
3.6 – 7.2 MW
Power 50 Hz [MWm] 2 4 6 8 10 12 14 16 18 20 22 24

4. Engine Performance Data 18V51/60G Electrical Optimized („E“)
Bore: 510 mm, Stroke: 600 mm
Speed
r/min
500
514
Frequency Hz 50 60
mep
bar
20.6
20,0
Piston speed
m/s
10.0
10.3
Eng. kW
Gen. kW
18V51/60G
18,900
18,465
Consumption P
100%
Electrical Optimized
Heat Rate for NOx 5% O2 
18V
7,607 kJ/kWhel
47,3% ηel
Efficiency at generator terminals, including engine-driven pumps, ISO conditions; MN ≥ 80; tolerance 5%
LHVmin = 28,000 kJ/mN³
Nominal generator efficiency: 97.7%, p.f. 0.9
Electrical optimized

5. Engine Performance Data 18V51/60G Total Energy Optimized („T“)
Bore: 510 mm, Stroke: 600 mm
Speed
r/min
500
514
Frequency Hz 50 60
mep
bar
20.6
20,0
Piston speed
m/s
10.0
10.3
Eng. kW
Gen. kW
18V51/60G
18,900
18,465
Consumption P
100%
Total Energy Optimized
Heat Rate for NOx 5% O2 
18V
7,690 kJ/kWhel
46,8% ηel
Efficiency at generator terminals, including engine-driven pumps, ISO conditions; MN ≥ 80; tolerance 5%
LHVmin = 28,000 kJ/mN³
Nominal generator efficiencies: 97.7%, p.f. 0.9
Total energy optimized

6. The Gas Engine 18V51/60G 18V51/60G – Dimensions and cross section
Cyl. No. 18 A mm
13,148 B*
5,410 C*
18,558 W
4,700 H
6,530
dry mass* t
373
* Depending on alternator. Dry masses apply to the complete GenSets

7. The Gas Engine 18V51/60G 18V51/60G Gas Power Plant
Exemplary

8. The Gas Engine 18V51/60G Spark Ignited (SI) Gas Engines Pre-chamber Spark Ignition Principle
Ignition Process:
Main combustion chamber will be filled with lean mixture of natural gas and air
Prechamber will be flushed with natural gas (rich mixture within prechamber)
Compression by upward piston motion (checkvalve prevents gas losses)
Spark plug initiates the ignition within prechamber
Flames coming out of the prechamber start combustion within main combustion chamber

9. Spark ignition components derived from 32/40G and 35/44G
18V51/60G Main Changes
reliability
~95% standard engine and safety parts from 48/60B + 51/60DF
maturity
Spark ignition components derived from 32/40G and 35/44G
new
Piston crown and cylinder liner with reduced fire land height for more efficiency

10. Gas and Dual Fuel Engines Released fuel gas specification

11. The Gas Engine 18V51/60G Benefits of the Engine - Summary
Based on proven design of V48/60B Highest power densities in his class Increased efficiency with spark ignition Low NOx emissions from gas Low gas-admission pressures High and stable ratings in hot and high power- plant locations Excellent load imposition and load following characteristics Cost savings through favorable price of natural gas Injection: State of the art spark ignition technology

12. 2012 Thank you for your attention Florian Schiller
Product Manager
Business & Product Development
Sales Business Unit Power Plants
Phone
Fax
Mobile