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© 2013 MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & ENGINE CO., LTD. All Rights Reserved.

MERS Presentation

MITSUBISHI ENERGY RECOVERY SYSTEM

MERS

FOR MOTOR VESSELS

Feb., 2014

Engineering Dept., Marine Machinery Div.


Contents

1. Type of MERS

2. Feature

3. Economical Evaluation

4. History & Production


3

1-1. Type of MERS

Eco - TG System (Without gas bypass)

With extracting an exhaust gas partially from main engine to economizer, this system realized more amount of power generation by increasing economizer steam amount and temperature. The power generation amount is 1.5 to 1.8 timesmore than above system.

The exhaust gas partially extracts from main engine exhaust gas manifold then it drives an Exhaust Gas Power Turbine, which is connectedto steam turbine with SSS Clutch. 2.4 to 2.8 timesmore power generation than above (1) system

This is a conventional system which has been applied to the Turbine Generators currently in service.Not so great amount of power generation can be expected.

STG System (Super Turbo Generating)

Eco - TG System (With gas bypass)

Exhaust Gas

Suction Air

Turbo-charger

Main Engine

Exhaust GasEconomizer

S/T

Exhaust Steam(To Condenser)

R/G

Steam

Generator

Exhaust Gas

Suction Air

Turbo-charger

Main Engine


S/T


R/G

Steam

Generator

Gas Bypass

Exhaust Gas

Suction Air

Turbo-charger

Main Engine


S/T


R/G

Steam

Generator

Gas Bypass

R/G

P/T

SSS Clutch


4

1-2. Type of MERS (Eco - TG System)

OIL UNIT

STEAM TURBINE

No.1 REDUCTION GEAR

GENERATOR

ST Type: AT42 / AT52 / AT64Exhaust Gas

Suction Air

Turbo-charger

Main Engine


S/T


R/G

Steam

Generator

Exhaust Gas

Suction Air

Turbo-charger

Main Engine


S/T


R/G

Steam

Generator

Gas Bypass


5

1-3. Type of MERS (STG System )

GENERATOR

OIL UNIT

No.2 REDUCTION GEAR

POWER TURBINE

STEAM TURBINE

No.1 REDUCTION GEAR

ST Type: ATD52 / ATD64PT Type: MPT33A / MPT42A / MPT48R

Exhaust Gas

Suction Air

Turbo-charger

Main Engine


S/T


R/G

Steam

Generator

Gas Bypass

R/G

P/T

SSS Clutch


6

Main Engine

Marine Boiler Designing Section

･ Exhaust Gas Economizer･ Auxiliary Boiler

～

SGM

～SGM

Turbo Charger Designing Section

･ Exhaust Gas Turbocharger (MET)･ Exhaust Gas Power Turbine

Marine Turbine Designing Section

･ Steam Turbine･ Reduction Gear & SSS Clutch･ Generator･ Condensing System･ Shaft Generator / Motor･ Power Management System

Exhaust Gas Economizer Turbocharger (MET)Exhaust Gas Power Turbine

Steam Turbine Shaft Generator / Motor

2-1. Feature (Advantage of MERS)

Generator

Steam Turbine

SSS Clutch

Power Turbine

Reduction Gear

Established the Whole System by MHICompetitive Performance Single Responsibility for Operation Support


7

Ship service load

LP Drum

HP Drum

Atoms. Drain tank

Feed water pump

Power turbine

Condenser

MainEngine

Exhaust gas

Economizer

Suction air

Central C.W.

Scavenge air cooler

Steam turbineSSS clutch

Generator

HP

ste

am (

Sup

erhe

at)

LP steam (Saturate)

TurbochargerCondensate pump

M/E start

M/E low load

M/E high load

Electric power

M/E high load

2-2. Feature (Plant Diagram)

: STG PORTION

: ECONOMISER PORTION

H.P. Dump Valve

To Condenser L.P. Dump Valve


8

MERS STG, Combined test of ST & PT in MHI shop

Generator

Steam Turbine

SSS Clutch

Power Turbine

Reduction Gear

Kind of ship : ContainerMERS(STG) TYPE : ATD52(ST) + MPT42A(PT)Generator output : 3,700 kW

2-3. Feature (Picture at Shop Test)


9

STG overview (Installation onboard )

Exhaust gas valve arrangement

Exhaust gas extraction

Exhaust gasvalve

Powerturbine

Full package ＆ Easy installation

High thermal efficiency

High reliability

2-4. Feature (Picture on Board)


10

Turbine control paneloverview

Monitoring screen ofWhole plant

Monitoring screen ofS/T start sequence

Monitoring screen ofpower turbine

Full automaticPlant monitoring systemPerformance diagnosis

Monitoring screen ofAUX start sequence

2-5. Feature (Control System)


11

3-1. Economical Evaluation (STG Installed in Container)

1.59

2.08

2.80

3.40

0.45 0.51 0.58

1.23

0.671,715

2,210

2,937

3,507

389 456 521

1,368

583

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0

Vessel Speed (knot)

Sav

in F

uel

Co

st /

yea

r (m

illi

on

$)

0

1,000

2,000

3,000

4,000

5,000

6,000

ST

G O

utp

ut

(kW

)

Saving Fuel Cost

STG Output

(HFO Price = 800 USD / ton)

Ship particularsKind of ship : ContainerMain engine MCR : 58,000 kWShip speed : 23.7 knot @ 85% SMCRAmbient condition : ISOAnnual operation days : 270 days

Estimated STG output & Saving fuel cost

35 % SMCR


12

1.04

1.35

1.82

2.21

0.45 0.51 0.580.80

0.671,114

1,437

1,9092,280

389 456 521

889

5830.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0

Vessel Speed (knot)

Sav

in F

uel

Co

st /

yea

r (m

illi

on

$)

0

1,000

2,000

3,000

4,000

5,000

6,000

Eco

-TG

Ou

tpu

t (k

W)

Saving Fuel Cost

Eco-TG Output

3-2. Economical Evaluation (Eco-TG Installed in Container)


Ship particularsKind of ship : ContainerMain engine MCR : 58,000 kWShip speed : 23.7 knot @ 85% SMCRAmbient condition : ISOAnnual operation days : 270 days

Estimated Eco-TG output & Saving fuel cost

35 % SMCR


13

0.67

0.83

1.00

1.201.31

0.24 0.27 0.310.36

9051,110

1,3501,498

714

203 235 272 3040.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

10.0 11.0 12.0 13.0 14.0 15.0 16.0

Vessel Speed (knot)

Sav

in F

uel

Co

st /

yea

r (m

illi

on

$)

0

500

1,000

1,500

2,000

2,500

3,000

3,500

ST

G O

utp

ut

(kW

)

Saving Fuel Cost

STG Output


35% SMCR

Ship particularsKind of ship : BulkMain engine MCR : 22,000 kWShip speed : 15 knot @ 85% of SMCRAmbient condition : ISOAnnual operation days : 270 days

Estimated STG output & Saving fuel cost

3-3. Economical Evaluation (STG Installed in Bulk)


14

0.440.54

0.65

0.780.85

0.24 0.27 0.31

0.36

588721

877 973

464

203 235 272 3040.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

10.0 11.0 12.0 13.0 14.0 15.0 16.0

Vessel Speed (knot)

Sav

in F

uel

Co

st /

yea

r (m

illi

on

$)

0

500

1,000

1,500

2,000

2,500

3,000

3,500

Eco

-TG

Ou

tpu

t (k

W)

Saving Fuel Cost

Eco-TG Output


35% SMCR

Ship particularsKind of ship : BulkMain engine MCR : 22,000 kWShip speed : 15 knot @ 85% of SMCRAmbient condition : ISOAnnual operation days : 270 days

Estimated Eco-TG output & Saving fuel cost

3-4. Economical Evaluation (Eco-TG Installed in Bulk)


15


25万吨矿砂船

船舱内的STG System (AT42C(ST) + MPT33A-R(PT))

2014年1月交船


16


• M/E Output： 17,850kw@85%MCR(7S80MC-C：21,000kw@100%MCR)

• Ship demand: 595kw

• All DG stop• SM(Shaft Motor):796kw

To assist Main Engine

Total save fuel about “6%” 721,000 US$/year

• WHRS(STG) installedGenerated: 1,390 kw

• SM(Shaft Motor) installed


17

(As of Feb. 2014)

Kind of Vessel Contracted Delivered Gene. Rated (kW)

Container 16 16 3,700



Container 16 - 2,950 / 2,650

Bulk 1 1 1,700

Container 21 21 P/T only

Total 96 66 －

Delivery record for STG

Share in global market of MERS

Production History of more than 100years

4. History & Production

MHI96 units(92%)

Other8 units(8%)

mers 簡易pr material(20140224) - mhi-mme · pdf fileto steam turbine with sss clutch. 2.4 to...

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