© MAN Diesel

© MAN Diesel

© MAN Diesel

TES (Thermo Efficiency System)

Theoretical background

Confirmation of potential

Application possibilities

Future application possibilities

© MAN Diesel

Turbocharger/Turbocharging efficiency

58

60

62

64

66

68

70

72

1975 1980 1985 1990 1995 2000 2005 2010

Year

Effi

cien

cy in

%

Turbocharger efficiencyavailable max.Turbocharger efficiencyavailable min.Turbocharging efficiencyrequired

Available for other use

Turbocharging Efficiency

© MAN Diesel

TES Applications

200

220

240

260

280

300

320

56 58 60 62 64 66 68 700

1

2

3

4

5

6TCS / Engine Power [ % ]Turbine Outlet Temperature

Turbocharging Efficiency [ % ]

MCR

© MAN Diesel

TES Applications

65

70

75

80

85

90

95

100

105

56 58 60 62 64 66 68 7065

70

75

80

85

90

95

100

105Relative Compressor Relative Turbine Area

Turbocharging Efficiency [ % ]

© MAN Diesel

TES Calculations (CFD Heat Load)

Reference TES Application

Piston top surface at 100% engine load

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TES Calculations (CFD Heat Load)

Reference TES Application

Liner surface at 100% engine load

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TES Calculations

Summarising calculation results for TES engine

Increased heat load on exhaust valve and piston

Slightly increased heat load on liner and cover

Approx. 2 g/kWh increased SFOC due to reduced purity atcompression start

Nearly unchanged NOx emission

© MAN Diesel






© MAN Diesel

Fore End Bypass From the Exhaust Receiver to the Scavenge Air Receiver

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TES: Combustion Chamber Temperature

Measured Mean Temperatures:

10K98MC Mitsui 2005

100% Reference test

100% TES

TES: 432 °CStd.: 414 °C

TES: 222 °CStd.: 218 °C

TES: 417 °CStd.: 388 °C

TES: 590 °CStd.: 570 °C

© MAN Diesel

Measured Influence on SFOC

-8

-6

-4

-2

0

2

50 60 70 80 90 100

g/kWhSFOC

Load in %

Reference TES

All data are corrected to ISO and reference pmax

© MAN Diesel

Measured Influence on Specific NOX Emissions

All data are corrected to ISO and reference pmax

10

11

12

13

14

15

50 60 70 80 90 100Load in %

g/kWhReference TES

NOx

© MAN Diesel






© MAN Diesel

Heat Balance at 100% SMCR forMain Engine 12K98ME/MC without TES

Fig. 1

Shaft poweroutput 49.3%

Lubricating oilcooler 2.9%

Jacket watercooler 5.2%

Exhaust gas25.5%

Air cooler16.5%

Heat radiation0.6%

Fuel 100%(171 g/kWh)

12K98ME/MCStandard engine version

SMCR : 68,640 kW at 94.0 r/min

ISO ambientreference conditions

© MAN Diesel Fig. 1

Fuel 100%(171 g/kWh)

Heat radiation0.6%

Air cooler14.2%

Exhaust gas andcondenser22.9% (22.3%)

Jacket watercooler 5.2%

Lubricating oilcooler 2.9%

El. power production ofTES 4.9% (5.5%)

Gain = 9.9% (11.2%)

Shaft poweroutput 49.3%

12K98ME/MCwith TES

SMCR : 68,640 kW at 94.0 r/min

ISO ambientreference conditions

TES : Single pressure (Dual pressure)

Total power output 54.2% (54.8%)

Heat Balance at 100% SMCR for Main Engine 12K98ME/MC with TES

© MAN Diesel

Power Concept forThermo Efficiency System

Main engine

Exhaust gas receiverShaft motor/generator

Diesel generators

Switchboard

Emergencygenerator

Superheatedsteam

Exh. gas boiler

Turbo-chargers

Generator,AC alternator

Reductiongearbox

Steamturbine

Reduction gearwith overspeedclutch

LPHP

Exh. gasturbine

Steam for heatingservices HP

LP

© MAN Diesel

Thermo Efficiency System (TES)

Generator,AC alternator

Reductiongearbox

Steam turbine

Reduction gearwith overspeedclutch

Exh. gasturbine

Approx. dimensions referringto a 12K98ME/MC:

Length: 10 metersBreadth: 3.5 metersWeight: 58 tons

Arrangement as proposed by Peter Brotherhood Ltd.

© MAN Diesel

PTG based on NR

PTG18 - 355 kWPTG23 - 590 kWPTG26 - 1,120 kW

PT based on TCR

PT12 - 250 kWPT14 - 350 kWPT16 - 500 kWPT18 - 700 kWPT20 - 1,000 kWPT22 - 1,800 kW

PT based on TCA

PT44 - 2,300 kWPT55 - 3,200 kWPT66 - 4,500 kW

PTG/PT Series with Expected Max. Shaft Power Output

© MAN Diesel

Power Turbine Generator

Alternatorasynchronous type Planetary Gear Power Turbine

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CODAGCombination of Diesel and Gas-turbine

Status

Power Turbine Gear Boxes Aux. Engine

ICS Line

Exhaust Gas LineMain Engine

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© MAN Diesel

Cooler

1

Engine

Turbocharger

Auxiliaryblower

Generator

Power Turbine

Boiler 2

© MAN Diesel

10Power rel. to main engine [%]

6815Total electrical power [kW]

3798Steam turbine [kW]

3017Power turbine [kW]

20900Heat extraction in Boiler 2 [kW]


-HP super heat temperature [°C]

-HP pressure [bar a]

270LP super heat temperature [°C]

7LP pressure [bar a]

Case 1

© MAN Diesel

Cooler

2

Boiler 1

Engine

Turbocharger

Auxiliaryblower

Generator

Power Turbine

Boiler 2

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11.210Power rel. to main engine [%]






--HP super heat temperature [°C]

--HP pressure [bar a]



Case 2Case 1

© MAN Diesel

SAM

3

Boiler 1

Engine

Turbocharger

Auxiliaryblower

Generator

Power Turbine

Boiler 2

© MAN Diesel

12.711.210Power rel. to main engine [%]






---HP super heat temperature [°C]

---HP pressure [bar a]



Case 3Case 2Case 1

© MAN Diesel

Cooler

4

Boiler 1

Engine

Turbocharger

Auxiliaryblower

Generator

Power Turbine

Boiler 2

© MAN Diesel

12.812.711.210Power rel. to main engine [%]






440---HP super heat temperature [°C]

19.5---HP pressure [bar a]



Case 4Case 3Case 2Case 1

© MAN Diesel

SAM

5

Boiler 1

Engine

Turbocharger

Auxiliaryblower

Generator

Power Turbine

Boiler 2

© MAN Diesel

18.012.812.711.210Power rel. to main engine [%]


79226350645155903798Steam turbine [kW]

44182436226220803017Power turbine [kW]



446440---HP super heat temperature [°C]

1019.5---HP pressure [bar a]



Case 5Case 4Case 3Case 2Case 1

© MAN Diesel

Conclusion

Significant increase in efficiency is possible.

Reliability of the engine itself is unchanged.

Shipyards are reluctant to introduce due to high order volume.

Payback time is typical 5-6 years with current oil prices.

TES must be considered at an early stage of a project.

Documents

© MAN Diesel