Product information
A100-L /A200-L
High efficiency turbochargers for two-stroke diesel engines
Advanced turbocharging for two-strokes
High performance single-stage turbochargers
ABB Turbocharging’s A100-L and A200-L series of advanced
single-stage turbochargers are designed to give operators
of low-speed two-stroke marine engines market leading levels
of performance, emissions compliance, application flexibility,
total cost of ownership (TCO) and operational safety.
Performance
With their high efficiencies, high pressure ratios and exceptionally wide compressor maps, turbochargers of the A100-L
and A200-L series enable:
– Compliance with IMO Tier III limits on NOx emissions.
– Market leading levels of fuel efficiency.
– A high degree of operational flexibility.
End user focus
Incorporating years of experience and extensive feedback
from operators of over 200,000 turbochargers in daily use all
over the world, user friendliness and service friendliness are
built into A100-L and A200-L in order to achieve:
– High reliability and availability.
– Long times between inspections, routine maintenance
and overhauls.
– Low life cycle costs and optimum total cost of ownership
for both the engine and the turbocharger.
2
Flexible configuration
Building on the inherent adaptability of the wide compressor
maps of the A100-L and A200-L turbochargers, a range of
options ensures precise matching of combustion air supply to
the demands of a specific two-stroke engine application:
– Wastegates and bypasses.
– Turbocharger cut-out for dual rating applications.
– High-pressure tuning.
Cost effective slow steaming conversion
Using the exceptionally wide compressor maps of the A100-L
and A200-L, ABB Turbocharging has pioneered adaptable
turbocharging configurations on two-stroke engines having
a standard rating for normal vessel cruising speeds and a
reduced rating for fuel saving slow steaming. Conversion of
the turbocharging system involves changing only the number
of turbochargers in use.
Safety
Targeting absolute operational safety, all ABB turbochargers
feature:
– Testing to the highest standards, including containment
testing of every new turbocharger type.
– Components in the highest grade, highest strength materials
accurately machined to exacting in-house standards.
– Components engineered with leading edge software tools
and decades of expert know-how.
3
Setting global standards
High pressure ratios and high efficiency ensure high
performance, high fuel efficiency and low emissions.
To achieve its exacting product objectives, ABB Turbocharging’s
A100-L and A200-L series single-stage turbochargers employ
turbines and compressors with advanced designs that set new
performance standards.
High efficiency
Validating its advanced design, during its final development
stages an A190-L turbocharger for low-speed two-stroke
engines set a new turbocharger efficiency record of well over
75 percent.
High pressure ratios
Significantly, the new efficiency record was achieved at higher
pressure ratios than the previous best – the A100-L and
A200-L are capable of delivering pressure ratios up to 5.0
combined with a high specific air volume flow.
HPT saves money for engine builders, ship owners and
operators:
– No additional devices required
– Low installation costs
– Low first costs
– Low investment costs
Turbocharger efficiency of the A100-L /A200-L measured on the test rig
Noise level comparison in standard configuration
␩ TC [%]
A190-L
[dB (A)]
A190-L
TPL 85-B
Surface sound pressure level at 1 m distance
Low noise
A100-L turbochargers feature lower noise levels than their
predecessors in their standard configuration.
Step up performance with High Pressure Tuning (HPT)
HPT is a way of improving fuel consumption on modern electronically controlled two-stroke engines at low and part load
such as A100 /A200-L. With HPT you can boost the efficiency
gains even further:
– Higher peak firing pressures at low and part load achieved by
an increase in the engine’s scavenging air pressure
– No excessive firing at full load thanks to an electronic
management system that varies compression ratio in each
cylinder by controlling the timing of the exhaust valves
– Lower fuel consumption of up to 5 g / kWh
TPL 85-B
Turbocharger efficiency
75
70
65
60
55
50
2.0
2.5
3.0
3.5
4.0
Compressor pressure ratio
4
4.5 ␲ C [-]
105
100
95
90
85
80
2.0
2.5
3.0
3.5
4.0
4.5
Compressor pressure ratio
5.0 ␲C [-]
Performance adaptability made easy
Widest compressor maps offer range of options.
The fast track to “slow steaming”
A solution often favored by ship owners in times of economic
downturn is “slow steaming”, i. e. reducing a vessel’s speed in
order to save fuel. Marine propulsion engines, however, are
set up to run at a specified cruising speed. Thus, while reducing the output of an engine optimized for higher power will
save fuel, even more can be saved by re-optimizing the engine.
ABB Turbocharging offers optional equipment designed to
make re-optimization easier.
The performance characteristics of the turbocharger turbine
and compressor, especially the “compressor map”, are the
governing factor. The compressor map reflects how effectively
and flexibly engine exhaust gas energy can be converted into
compressed air. It can be adjusted in several ways, for example
by using an exhaust wastegate or bypass, or by exchanging
components like the nozzle rings and diffusers. These measures change the pressure of the exhaust gases reaching the
turbine and thus the speed at which it drives the compressor.
Example of a flexible A100-L /A200-L dual rating configuration
Exhaust gas receiver
TC cut-out
Bypass
valve
Compressor
Turbine
Turbocharger cut-out
Where dual ratings for normal cruising as well as slow steaming are required, the width of the compressor map is key.
A100-L and A200-L turbochargers feature the widest compressor maps available, making it possible to set a desired
turbocharger and engine performance by modifying the
number of rather than the turbochargers themselves. The
example shown comprises four A100-L /A200-L turbochargers,
one of which can be cut out from the exhaust gas stream
using a valve or simple blanking plate. Despite the reduced
level of energy in the exhaust gases at the lower engine
power, the three turbochargers still efficiently produce the
charge air characteristics needed.
5
A comprehensive range of versatile turbochargers
Flexibility from the smallest to the largest.
A100-L and A200-L turbochargers all feature axial turbines
and are offered for the full spectrum of low-speed two-stroke
engines. The smallest model addresses the market from 30 cm
bore engines while the largest targets multiple turbocharger
systems on engines with bores up to 95 cm.
Flexible and adaptable
Wide compressor maps and advanced turbines ensure application flexibility and adaptability to market conditions. The
economic conditions under which engines operate change
continually. Fuel prices are on an upward trend, while demand
for cargo space rises and falls, directly affecting freight and
charter rates. With their exceptionally wide compressor maps,
A100-L and A200-L turbochargers enable rapid, ready adaptation of engine performance to economic conditions.
␲ c [-]
5.0
Compressor pressure ratio
4.5
4.0
Basic impacts of optimization strategies on bsfc
Optimum compressor
pressure ratio
for MCR 21 bar mep
Operating area for
flexible turbocharging
3.5
3.0
1 Full load
1
2 Part load
2
3 Wastegate
3
2
3
4
40
60
Engine power
1.5
1.0
20
30
40
Volume flow
50
V [m3/s]
3 High pressure
tuning
4 TC cut-out 1/4
1,5
5
20
2.5
2.0
6
Filter silencer casing
Engine fuel consumption is reduced when the turbochargers
are fed direct with ambient air. This is because ambient air is at
a lower temperature than the air in the engine room. ABB offers
optional filter silencer casings for the A100-L and A200-L turbocharger series to take advantage of this benefit.
Brake specific fuel consumption (bsfc)
Example of A100-L /A200-L compressor map
High-pressure tuning
A100-L and A200-L turbochargers in combination with adjustable
exhaust gas valves on the main engine allow part-load fuel
consumption as low as with a wastegate or with variable turbochargers, while also offering similar values at higher engine
loads. Having a higher turbocharger compressor pressure ratio
is a key factor in being able to utilize this capability.
80 [% MCR]
5 Derating
7
Noise reduction
New feature for a quieter engine room.
Noise radiation is traditionally kept within reasonable limits
by insulating those parts that contribute most to the noise.
This measure, however, is not only costly but also limited in
its effectiveness. ABB has risen to the challenge and developed, as an option, the air outlet silencer. The silencer is
integrated in the compressor casing for very effective noise
reduction close to the source (see graph; measurements
taken on board a ship with insulation left unchanged), allowing
a possible saving in first costs for air receiver insulation.
8
An A100-L sound pressure level with and without air outlet silencer
[dB]
Sound pressure level
Air outlet silencer
Occupational health can be affected by excessive noise. As
two-stroke diesel engines become more powerful and turbocharger compressor pressure ratios and volume flows rise,
limiting the noise they emit will become increasingly important.
As a result of new design features, our turbochargers emit
less noise than their predecessors. However, the level of engine
room noise is determined to a large degree by the way it is
radiated through the engine’s air system, particularly the air
ducts, the charge air coolers and the air receiver.
without
air outlet
silencer
1 st blade passing frequency
– 9 dB
2
nd
blade passing frequency
with air
outlet
silencer
6 dB
500 1000 1500 2000 2500 3000 3500
Frequency
[Hz]
Ease of maintenance and overhaul
Good design and inherent simplicity of the A100-L and A200-L
promotes uninterrupted availability, low cost of ownership.
Based on their essentially uncomplicated design, A100-L and
A200-L turbochargers have already proven their reliability on
low-speed two-stroke engines burning heavy fuel oil (HFO).
They are inherently maintenance-friendly, both in terms of their
method of construction and their times between maintenance
and overhaul.
Due to their positive effect on engine combustion temperatures, A100-L turbochargers promote lower thermal loading
of critical engine components, increasing their effective life
and reducing maintenance costs:
– The specified service interval for bearings on A100-L and
A200-L turbochargers is 36,000 operating hours.
– The exchange interval for rotating parts is 100,000 hours.
This allows A100-L and A200-L turbochargers to achieve
times between overhauls on a “drydock to drydock” basis.
Day-to-day service
Turbine cleaning employs the “dry” method.
A system for wet compressor cleaning is integrated in the
intake silencer.
Endoscopic inspection
Inspection intervals of 18,000 operating hours are prescribed
for the compressors and turbines on all A100-L and A200-L
models. Access points for endoscopes are provided at the
gas inlet and outlet casings, allowing the ABB Turbocharging
Service organization to offer A100-L and A200-L end users
rapid examination and analysis of turbocharger condition as a
basis for maintenance and overhaul recommendations.
OPAC – scheduling service the smart way
OPAC is an Operation Performance Package that lets customers take charge of their service scheduling and selfmanage their costs. Modules are designed around end users’
special circumstances, with built-in flexibility allowing them
to decide which turbochargers and which risks are to be
covered.
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Technical data
Compact size, wider range.
W (mm)
H (mm)
Weight (kg)
2460
1190
1220
2300
A170-L
2820
1370
1410
3300
A175-L
3370
1650
1690
5600
A180-L
3800
1870
1910
7500
A185-L
4220
2080
2130
10500
A190-L
4640
2300
2350
13500
A200-L (type)
L (mm)
W (mm)
H (mm)
Weight (kg)
A265-L
2410
1290
1390
2600
A270-L
2780
1490
1600
3800
A275-L
3340
1790
1930
6300
A280-L
3780
2020
2180
8700
10
TPL 91-B A285-L
A190-L
TPL 85-B A280-L
A185-L
A180-L
A175-L
TPL 80-B A275-L
30
4.4
4.2
4.0
10
15
20
35
40
45
50 V [m3/s]
Volume flow
H
L (mm)
A165-L
25
4.6
Exceptional compactness with A200-L
The A200-L comes with an advanced compressor stage
that enables 30 percent more volume flow, providing a most
favorable power-to-weight ratio. Customers can enjoy up to
25 percent savings in spare parts.
A100-L (type)
TPL 77-B A270-L
␲c [-]
A165-L
TPL 73-B A265-L
A170-L
Optional equipment
A100-L and A200-L options comprise:
– Turbocharger cut-out for dual rating applications, etc.
– Power turbine version for enhanced engine efficiency with
stand-alone generator or with steam turbine for recovery of
both kinetic and thermal energy.
– Air outlet silencer to further reduce engine room noise.
– Filter silencer casing for ambient air suction, resulting in
lower engine fuel consumption.
Volume flow range of A100-L /A200-L and TPL -B predecessor
Compressor pressure ratio
Ease of installation
The compact dimensional envelopes of A100-L and A200-L
turbochargers are designed to simplify their installation on the
engine. The capability to set the angle of the compressor outlet in 7.5 ° steps further facilitates their mounting.
L
W
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Bruggerstrasse 71 a
CH-5401 Baden / Switzerland
Phone: +41 58 585 7777
Fax:
+41 58 585 5144
E-mail: [email protected]
www.abb.com/turbocharging