Brochure 4 Stroke L+V3240DF

7/30/2019 Brochure 4 Stroke L+V3240DF

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L+V32/40DFEnvironmentally friendly and economical


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MAN B&W Diesel3L+V32/40DF Environmentally friendly and economical

MAN Diesel & Turbo is the worlds leading designer and manufacturer of low and

medium speed engines. Our involvement with electrical power generators goes

back to 1904 when we supplied the first ever diesel generator sets to the Kiev Tram

System.

Since those early days, MAN Diesel & Turbo has never lost its technological pre-

eminence in the large engine field. Likewise, our engines have never relinquished

their status as the most efficient combustion engines available.

More than ever before, MAN Diesel & Turbos development focus is on the environ-

mental performance of our engines. Using our unrivalled grasp of large engine

technology, we aim to make our engines progressively cleaner, more powerful and

more efficient.

With our firm commitment to reducing emissions while increasing fuel efficiency

and power density, and with our active partnership with environmental institutionsand development banks, we intend to be part of the global emissions solution.

MAN Diesel & TurboThe responsible way in leading technology


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4 L+V32/40DF Environmentally friendly and economical

Rugged engine block

The engine is housed in a rigid monobloc frame,

further strengthened by continuous tie rods. These

run from the underslung main bearing to the top edge

of the engine frame, and from the cylinder head

through the intermediate plate.

Durable valves

All valves are armoured to reduce wear, and the

exhaust valve seats are water-cooled. The exhaust

valves have an exhaust-driven rotor, while the inlet

valves have rotocaps for clean, gas-tight valve seats.

Robust cylinder head

The strong cylinder head ensures high stif fness, with

bore cooling for efficient heat dissipation.

Cylinder liner with fire ring

The thick-walled design provides high resistance to

deformation, preventing cavitation. This leads to

better piston performance and a longer service life.

In combination with the stepped piston, the fire ring

prevents combustion residue accumulating on the

cylinder liner. This minimises liner bore polishing,

reducing oil consumption.

Connecting rod

The marine head design, with a joint in the upper

shaft, allows piston overhaul without removal of the

connecting rod bearing. A low piston height alsomakes overhaul easier.

Proven Diesel Technology

The 32/40DF engine is based on the tried and tested 32/40 diesel engine, which is

designed for HFO operation. With the same key components as its famously robust

diesel counterpart, the 32/40DF offers the same high availability, durability and low

maintenance.


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Seamless changeover

Switching from gas to diesel fue l operation at full load

will not affect output or speed. This gives the oper-

ator complete flexibility to change fuels in line with

the supply situation guaranteeing availability under

any circumstance.

For this reason, the 32/40DF is highly suitable for use

in a back-up genset, in case of outages. Alternatively,

it can be used in a back-up diesel genset for use in

gas supply interruptions.

Prechamber injection

In gas operation, pilot fuel is injected into the two

cooled prechambers. This creates high injection

energy, which ensures the ignition of lean-burning

gas/air mixtures in the main combustion chamber.

As a resul t, NOX emissions are extremely low when

running on gas.

A separate pump for pilot fuel injection ensuresaccurate, reliable metering of small amounts. The

main injection nozzle is activated only in diesel

operation.

Economical and environmentally friendly

When operating with gas, the pilot fuel amounts

to approximately only one per cent of diesel fuel

consumption in full diesel mode. Accordingly, the

engine produces very low emissions and requires

only small storage tanks for secondary fuel.

Precise metering

Electromagnetic valves accurately inject gas for each

cylinder. By minimising firing pressure fluctuations

between the individual cylinders, this ensures smooth

operation and high efficiency. That means lower NOX

emissions.

Double camshaft concept

Injection and gas exchange are controlled separately.

As a result, the engine can easily accommodate

different natural gas qualities.

Dual-fuel Flexibility


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Top turbochargers

The constant pressure turbocharging system uses

cutting-edge MAN Diesel & Turbo TCA series turbo-

chargers. Their high efficiency at full and part loads

and with any number of cylinders ensures

thorough combustion in both dual-fuel and diesel

operation.

Exhaust gas temperatures are well within permissible

thresholds, and exhaust gas piping is easy to install.

Special features for gas operation include a con-

trolled compressor bypass, which ensures the best

possible combustion air ratio.

Compact, easy-to-service GenSets

The engine and alternator are flexibly coupled and

installed on a steel foundation frame. Flexibly mount-

ing the engine reduces engine vibration transmission

to the frame, alternator and concrete foundation.

To save space, the engine lube oil tank is instal led in

the frame. Whats more, the frames low-weight

design reduces the overall weight of the GenSet. The

design also allows a wide choice of alternators.

Piping to the engine is routed through a single con-

nection box. This makes it easy to connect to further

piping using flexible compensators.

State-of-the Art Turbo and GenSet Technology

Cylinder head


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Pilot fuel

injection

pump

Main

injection

pump

7L+V32/40DF Environmentally friendly and economical

Safe natural gas supply

In accordance with safety requirements, there is a

gas control system (overpressure) with gas lock and

pressure control.

Low-pressure gas injection means that no gas

compressor is needed at 5 bar main pressure (over-

pressure). The gas control system can safely be

installed within the power station. And the low riskminimises the need for explosion protection and

heavy-duty safety devices.

Full compliance

The 32/40DF engine complies with all safety requi re-

ments in applicable standards and legislation (EU,

CE, DVGW). In addition to the gas control system, the

engine is fitted with relief valves for the crankcase,

charge air and exhaust gas pipes.

Fuel injection system

Safety Features


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Engine control and monitoring

A modular management system controls and moni-

tors the engine and engine auxiliaries. This includes

anti-knocking control, Lambda control, and a speed

governor system.

The engine can automatically adapt to variat ions in

gas qualities. In fact, it can even switch from diesel to

gas operation, or vice versa.

The result of all of this? High eff iciency and reliabili ty,

high output, and low exhaust gas emissions.

Modular engine management

Sophisticated Engine Control


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Heat input 100%

Gas 99%Pilot fuel 1%

Radiation 2.0%

Chargeair12.9%

Thermal energy

55.6%

Losses 9.4%

Stacks7.4%

Wasteheat

recoveryboiler21.9%

Exhaust gas

29.3%

Lubeoil4.8%

Electrical energy

(alternator terminals) 43.2%

Mechanical energy

44.4%

Enginecoolingwater6.6%

Usable heat

46.2%


Efficient, Economical Heat Recovery

Heat recovery reduces fuel consumption

Heat is recovered from:

exhaust gas

engine cooling water

engine lube oil

charge air

Possible engine heat recovery Energy flow diagram 18V32/40DF

This saves primary energy and results in an extreme-

ly high overall efficiency. In fact, combined heat and

power (CHP) plants can reach an impressive overall

efficiency of more than 90 per cent.


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MAN Diesel & Turbo engines are designed to make

maintenance fast and straightforward.

Cylinder heads

Quick-acting locks, clamps and plug-in connections

are fitted on all piping, including exhaust gas, charge

air and lube oil piping. Hydraulic tools are provided

for cylinder head nuts.

Running gear

All running gear components are made of the best

material combinations, ensuring low wear rates and

long times between overhauls (TBOs).

Our perfect manufacturing technology ensures

well-balanced temperature conditions and load-

compatible component design.

Large crankcase doors enable better accessibility.

Hydraulic tools are provided for the main bearings,big-end bearings, and bolted connection of bolted

connections.

MAN Diesel & Turbo turbochargers

Our turbochargers have long TBOs, with the estimat-

ed lifetime of bearings over 25,000 hours.

Advantages for the operator

This delivers a number of benefits for the operator,

such as high availability at all times. Only short main-

tenance windows and overhaul times are needed,

reducing costly overtime. There is also less need for

maintenance staff, cutting costs.

Easy Maintenance


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Exhaust gas stack

with integrated

silencer

Oxi-catalytic converter

Power house air inlet

Power house air outlet

Steel foundation frame

Auxiliary module

Engine 18V32/40DF

Alternator


General definition of gas engine ratings according

to ISO 30461/1-2002

ISO reference conditions:

Air temperature: 298 K (25C)

Air pressure: 1 bar

Charge air temperature: 316 K (43C)

Relative humidity: 30%

Gas quality:

Natural gas with methane number 80,

min. LCV = 32,400 kJ/Nm3, deviating gas qualities

require engine derating

Gas pressure:

min. 5 bar upstream of the gas control line

Quality of diesel fuel:

According to specifications DMA, DMB

LCV Hu = 42,700 kJ/kg

Stationary p lants with dual-fue l engines L+V32/40DF for power range from 2 310 to 7 200 kWm

Overview

Engine cycle: four-stroke

Combustion process: lean burn combustion with

(Dual-fuel operation) pilot fuel injection into

prechamber

Number of cylinders: 6, 7, 8, 9, 12, 14, 16, 18

Cylinder bore: 320 mm

Piston stroke: 400 mm

Swept volume per cyl.: 32.2 dm3

Compression ratio: 11.0 : 1

Power to weight ratio (MCR)

In-line engine: 14.7 16.2 kg/kW

V-engine: 12.5 13.5 kg/kW

Cylinder output

at 720 rpm: 385 kW

at 750 rpm: 400 kW

NOX-Emission: in gas operation

< 500 mg NOX/m3

dry exhaust gas (STP)*

@ 5% O2

L+V32/40DF Technical Data

* STP = Standard Temperature Pressure, Standard cubic metre (m3 (STP)) equals 1 cub ic metre of gas at 0C and 1.0132 bar


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Four-stroke dual-fuel engine V32/40DF

Specific fuel consumption:

In gas operation (natural gas + pilot fuel) 100% P

L32/40DF (WB 2007/2008) 8,210 kJ/kWhm

V32/40DF (WB 2007/2008) 8,100 kJ/kWhm

Tolerance: +5%

Including pilot fuel/h 0.8 kg/cyl

Diesel operat ion 100% P

L32/40DF 8,326 kJ/kWhm

V32/40DF 8,284 kJ/kWhm

Tolerance: +5%

Lube oil consumption:

L+V32/40DF 0.75 g/kWhm

Tolerance: +20%

Four-stroke dual-fuel engine L32/40DF

Power output (maximum continuous rating)

kWm/kWe* kWm/kWe*

6L32/40DF 6 cyl. 2,310/2,241 2,400/2,328

7L32/40DF 7 cyl. 2,695/2,616 2,800/2,716

8L32/40DF 8 cyl. 3,080/2,988 3,200/3,104

9L32/40DF 9 cyl. 3,465/3,361 3,600/3,492

12V32/40DF 12 cyl. 4,620/4,481 4,800/4,656

14V32/40DF 14 cyl. 5,390/5,228 5,600/5,432

16V32/40DF 16 cyl. 6,160/5,975 6,400/6,208

18V32/40DF 18 cyl. 6,930/6,722 7,200/6,984

Speed 720 rpm 750 rpm

Mean

piston speed 9.6 m/s 10.0 m/s

Mean effetive

pressure 19.9 bar 19.9 bar

* Nominal generator efficiencies: 97%


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# $%

*

9

9

*

# $

%


Engine No. of cyl. A (mm) Genset* B (mm) C (mm) W (mm) H (mm) Wt. (t)

6L32/40DF 6 5,940 3,330 8,955 2,630 4,010 59

7L32/40DF 7 6,470 3,570 9,725 2,630 4,010 67

8L32/40DF 8 7,000 3,710 10,395 2,715 4,490 73

9L32/40DF 9 7,530 3,940 11,155 2,715 4,490 80

12V32/40DF 12 6,915 4,215 10,690 3,370 4,795 98

14V32/40DF 14 7,545 4,215 11,320 3,370 4,795 112

16V32/40DF 16 8,365 4,450 12,120 3,500 5,240 13118V32/40DF 18 8,995 4,450 12,750 3,730 5,240 139

* Dimensions and weights depend on requested alternator

Dimensions and Weights

L32/40DF Four-stroke dual-fuel engine

V32/40DF Four-stroke dual-fuel engine


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World Class ServiceExpert advice and assistance

PrimeServ peace of mind for life

With more than 150 PrimeServ service stations and

service partners worldwide and our growing network

of PrimeServ Academies, MAN Diesel & Turbo is com-

mitted to maintaining the most efficient, accessible

after-sales organisation in the business.

PrimeServs aim is to provide:

Prompt, OEM-standard service for the complete life

cycle of an installation

Tuition and qualif icat ion of service personnel at

our PrimeServ Academies to maximise the plants

availability and viability

Rapid, global availability of genuine, quality-assured

MAN Diesel & Turbo spare parts via local outlets or

our 24 hour hotline.

PowerManagement by MAN Diesel & Turbo

Complementing the PrimeServ after-sales offering is

the MAN PowerManagement concept.

MAN PowerManagement packages provide integrated

support solutions for all aspects of running a power or

co-generation plant. Individually negotiated agreements

can cover assistance with or delegation of the man-

agement of all mechanical, electrical and thermal equip-

ment. This gives the power plant operator comprehensive

access to the technology, experience, best practices

and professional resources of MAN Diesel & Turbo.

In short: PowerManagement by MAN Diesel & Turbo

allows you to benefit from our specialist expertise in

running a power plant while you concentrate on your

core business.


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MAN Diesel & Turbo

86224 Augsburg, Germany

Phone +49 821 322-3897

Fax +49 821 322-3382

[email protected]

www.mandieselturbo.com

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Brochure 4 Stroke L+V3240DF

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