Feature 2
The future is turbocharged
ABB Turbo Systems has a new generation of turbochargers, designed to
meet even the toughest of future air emissions legislation envisaged.
A
BB Turbo Systems intends to to resort to exotic materials or titanium. A100
press home its market leading units will feature new compressor and turbine
status in the turbocharger market stages.
through technological development, with What is known is that the first unit in service ABB adds lower
the coming launch of its new generation for low-speed applications will be the A175-L,
A100-L turbochargers for low-speed engine which is expected to be working onboard a power offering
applications. ship in combination with two stroke engines
The veil is still drawn over the precise before the first quarter of 2009 is out. Here, the
specifications of the coming generation, but ‘75’ refers to the frame size and ‘L’ refers to low ABB Turbocharging has added to
what is known is that, where pressure ratios speed. its TPS..-F turbocharger family, with
for ABB’s existing TP series turbochargers are ‘A lot depends on what the emissions the launch of the .TPS44-F. The new
thought to peak at 4.5πc, the new A100 series regulations turn out to be,’ said ABB Turbo compact turbocharger extends the
will feature pressure ratios of up to 5.8πc in Systems general manager, marine, Arie Smits. TPS..-F application range to include
high-speed and medium-speed diesel and gas ‘No one yet knows what IMO III will mean. small-, medium-, and high-speed
engine applications, and up to 4.7πc in low- Will it call for an 80% cut [in NOx], where engines rated below 500kW.
speed engine applications. we will need to use SCRs [selective catalytic The TPS44-F is the fifth and smallest
ABB sees the existing TPL-B turbocharger reduction]? We just don’t know. But we do member of the family of TPS..-F
type for low-speed engines as continuing to know that engine BMEPs are going to go up turbochargers for engine outputs
service the need for engines in service, but to around 23bar. In fact, although not for a beginning at 400kW. It extends the
expects the A100 series to come into its own specific vessel, the first 50 bore D engine from application to the lowest rated HFO
when used in combination with newer engines. Wärtsilä is already developed and that will burning medium-speed engines
In accordance with coming, tighter regulations need an A175L turbocharger.’ and meets the specific requirements
on air emissions, such engines will operate at ABB launched the first A100-generation of smaller high-speed diesel and
higher brake mean effective pressure (BMEP), turbocharger, the A140-H for high-speed gas engines coming onto the
in order to achieve higher specific output. For engines, at the end of 2007, and it will be market. Three radial compressor
the turbocharger, this means the same amount available from the first quarter of 2008. It will stages support engine operators’
of air, but operating at a higher pressure ratio. be followed in due course by the A100-M series efforts to reduce emissions and fuel
The supplier points out that higher pressure and the A100-L series for the medium-speed consumption while providing the
ratios confer greater efficiency. In a low-speed and low-speed engine segments, respectively. high power necessary to compete in
application, the A100 series will be able to Higher pressure ratios meant that the marketplace.
cover engines operating at up to 23bar, in line engines could achieve a lower specific fuel The first of these new
with what is expected to be necessary to meet consumption than was possible today, Mr turbochargers to be launched
the IMO’s future Tier III air emissions criteria. Smits said, at the same time broadening are the TPS44-F31 and TPS44-F32,
This will be achieved through a single shaft opportunities for the application of waste offering users full-load pressure
aluminium configuration, without needing heat recovery technology. NA ratios of up to 4.8.
The lid has yet to
be lifted on the
full specifications
of ABB’s new
generation of
A100-series
turbochargers.
The Naval Architect March 2008 55
NA Mar 08 -
p55.indd 55 10/03/2008 12:04:03
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