Date post: | 02-Mar-2018 |
Category: |
Documents |
Upload: | srijith-m-menon |
View: | 224 times |
Download: | 0 times |
7/26/2019 ABB Turbocharging VTC
http://slidepdf.com/reader/full/abb-turbocharging-vtc 1/8
Product information
ABB Turbocharging VTC
7/26/2019 ABB Turbocharging VTC
http://slidepdf.com/reader/full/abb-turbocharging-vtc 2/8
2
Proven reliability over the years The VTC is long-established and proven in applications wherespace restrictions call for a compact turbocharger.
VTC high-performance turbochargers are designed for d iese l
engines with rated outputs from 1000 up to 3200 kW per
turbocharger, where restricted space demands a compact
turbocharger.
The aerodynamic design of the rotating components, i. e. theturbine and compressor, of the VTC turbochargers is the
same as for the VTR..4, which is noted for high overall effi-
ciency.
To enable a space-saving design i t was decided to use sepa-
rately lubricated plain bearings between the turbine and
compressor. The resulting reduction in overall length permits
a compact arrangement on the engine and free flow of the
exhaust gases to the turbine.
The plain bearings are lubricated v ia the engine’s lube oi l
system. No postlubrication is needed when the engine
is shut down. However, when the engine is started up, the
turbocharger, like the engine, requires prelubrication.
VTC turbochargers are particularly well suited for use ondiesel engines where compactness is needed, such as
on locomotives, in stationary power plants and on mobile
emergency gensets.
The VTC turbocharger has been designed to enable the rotor
to be dismantled with its bearings as a whole, without the gas
lines having to be disconnected, and to be easily removed
from the gas casing. The same applies to the nozzle ring and
the associated shroud ring. This greatly simplifies mainte-
nance and enables all bearings and running parts to be
inspected without the gas casings having to be dismantled.
7/26/2019 ABB Turbocharging VTC
http://slidepdf.com/reader/full/abb-turbocharging-vtc 3/8
3
7/26/2019 ABB Turbocharging VTC
http://slidepdf.com/reader/full/abb-turbocharging-vtc 4/8
4
Benefits that add upCustomers and end-users can rely on the world’s premier salesand service support network.
Major benefits
Close contact with the diesel engine industry and a wealth of fieldexperience enable ABB to provide expert advice on all questions
connected with turbocharging.
ABB application engineers are highly experienced specia lists who can
be called in to advise on solutions to any problems. Since ABB is a totally
independent company, it can be consulted with confidence at an early
stage.
VTC turbochargers are of extremely robust design, dimensioned to last
the useful life of the engine and undemanding in operation.
High reliability is achieved through a commitment to highest
manufacturing quality and close tolerances. All spare parts can be
used without re-machining.
All V TC turbochargers are provided wi th water connections at the
compressor end, enabling them to be washed with water in service.
As back-up in al l operational questions, ABB has a specia l team of
experienced engineers permanently on call.
ABB’s wor ldwide service network ensures fast, efficient response
around the clock.
7/26/2019 ABB Turbocharging VTC
http://slidepdf.com/reader/full/abb-turbocharging-vtc 5/8
5
The diagram shows the f ield of appl ication of the various sizes
of VTC turbocharger and allows a rough choice of the size of VTC turbocharger to suit a given diesel engine.
The ranges of appl icat ion of the VTC turbocharger sizes
VTC 254 and 304 are large ly the same as those of the corre-
sponding sizes in the VTR range as the active components
(turbine and compressor) of the two turbochargers are identical.
Power range
Volume flow
2.5
3.0
3.5
4.0
4.5
c [-]
a t
M C R
V [m3 / s]1 5 10 20
V T C
2 5 4
V T C
3 0 4
V T C
2 5 4 P
V T C
3 0 4 P
C o m p r e s s o r p r e s s u r e r a t i o
For a specific application, the definitive size of turbocharger to
be chosen as well as the correct choice of turbine and com-pressor parts (characteristic and size of blades, cross-section
of the stationary vanes, size of compressor impeller and dif-
fuser) is best decided in consultation with one of our applica-
tion engineers.
7/26/2019 ABB Turbocharging VTC
http://slidepdf.com/reader/full/abb-turbocharging-vtc 6/8
6
Design featuresCasing dimensions
The maximum rate of water flow shown for the gas outlet
casing assumes a gas temperature of 600 °C and a cooling
water temperature of 65 °C at the inlet.
To ensure optimum mounting of the turbocharger on the
engine, the air and gas casings are vertically split and can
be turned relative to one another. The fixing feet attached
to the gas outlet casing can also be turned to the desired
mounting position.
Design variants
Gas inlet 1 or 2 gas inlets radial; 1, 2 or 4 gas inlets axial
Air outlet 1 or 2 air outlets
Air inlet Air suction branch axial or radial , or filter-silencer. By using
a filter designed as a surrounding jacket, the larger dirt
particles will be extracted from the incoming air. Noise is
absorbed by felted segments which provide support for
the whole. These silencers achieve high noise reduction for
only a low pressure drop.
Type A B C D E F G H Weight kg* Water l /s Oil l /min
VTC 254 315 739 720 704 350 340 300 550 500 1.00 25
VTC 304 326 853 851 880 415 405 340 655 850 1.32 30
* including a filter silencer without cooling water
HG
F
E
DC A
G
B A
7/26/2019 ABB Turbocharging VTC
http://slidepdf.com/reader/full/abb-turbocharging-vtc 7/8
7
7/26/2019 ABB Turbocharging VTC
http://slidepdf.com/reader/full/abb-turbocharging-vtc 8/8
C H T U S - 1 2 2 0 - 1 1 0 8 - 5 0 0 0 - E N
© 2
0 1 1 A B B
T u r b o S y s t e m s L t d ,
B a d e n / S w i t z e r l a n d
ABB Turbocharging Service network
ABB Turbo Systems Ltd
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
Aberdeen · Adana · Alexandri a · A lgeci ras · Antwerp · Baden · Bangkok · Barcelona · Bergen · Bremerhaven · Brisbane · Buenos Aires · Busan · Cairo · Cape Town
Casablanca · Cebu · Chennai · Chicago · Chittagong · Chongqing · Colombo · Copenhagen · Dakar · Dalian · Dar es Salaam · Davao · Delhi · Dortmund · Douala
Dubai · Dunkerque · Durban · Fukuoka · Gdansk · Genova · Gothenburg · Guangzhou · Guatemala City · Haifa · Hamburg · Helsinki · Ho Chi Minh City · Hong Kong
Houston · Incheon · Istanbul · Izmir · Jakarta · Jeddah · Kaohsiung · Karachi · Kobe · Lahore · Las Palmas · Le Havre · Lima · Limassol · Los Angeles · Lunenburg
Madrid · Malta · Manaus · Manila · Mannheim · Marseille · Melbourne · Miami · Montreal · Mumbai · Naples · New Orleans · New York · Onomichi · Oporto · OsloPanama · Perth · Piraeus · Qingdao · Quito · Reykjavik · Rijeka · Rio de Janeiro · Rotterdam · Saint Nazaire · Santo Domingo · Santos · Seattle · Shanghai · Singapore
Southampton · St. Petersburg · Suez · Sunderland · Surabaya · Talcahuano · Tallinn · Telford · Tianjin · Tokyo · Vadodara · Vancouver · Varna · Venice · Veracruz
Vizag · Vladivos tok