has accumulated more than 20 million
operating hours powering passenger
aircraft in service with more than 60
airlines and operators.
The ships are scheduled to be built at
Northrop Grumman Ship Systems in
Pascagoula, Mississippi, U.S.A., and
General Dynamics Bath Iron Works in
Bath, Maine, U.S.A. They feature technological advances in combat and ship
propulsion systems and are designed
for a variety of missions, including land
attack and battle space dominance.
The large MT30 gas turbines on the
DDG 1000 electric drive system are
complemented by the two smaller
RR4500 sets to deliver a total of 80
MW. This represents over 10 times the
electrical power available on today’s
DDG 51 destroyers. Power for the
RR4500 generator set is provided by
the Indianapolis, Indiana, U.S.A.-built
MT5S engine, a follow-up of the successful 501-K34 engine that supplies
auxiliary power for the DDG 51 class
destroyers.
Another milestone has been the successful first light of the WR- 21 gas turbine on HMS Daring, the first-of-class
Royal Navy Type 45 destroyer. The
Type 45, which succeeds the Royal
Navy’s long-serving Type 42 destroyers, features WR- 21 gas turbines, propeller shaftlines, steering gear and stabilizers. A total of six Type 45s have
been ordered by the U.K. Ministry of
Defence. The gas turbines are now
being readied for the start of sea trials,
which are scheduled for this summer.
Rolls-Royce also completed deliveries of the first three gas turbine generator sets providing the main electrical
power system for the Republic of Korea
Navy’s first 70 000 tonne destroyer,
designated KDX-III. Deliveries are now
well advanced on the second ship.
For the first KDX-III, the first
AG9140RF gas turbine generator set
was produced at the Rolls-Royce
Indianapolis, plant, and the other two
were assembled by Samsung Techwin
from Rolls-Royce supplied kits. Another
six generator sets, being assembled by
Samsung Techwin from Rolls-Royce
supplied kits, will be supplied to the
other two KDX-III destroyers that are
scheduled to be built. The alternator for
the generator set is planned to be produced by Hyundai under license.
The order continues a relationship
between Rolls-Royce and Samsung,
which provided combustors for all
Rolls-Royce Trent 900 aero engines, as
well as providing aftermarket services
on the T56, Model 250 and Gem
engines. a
For more information, refer to the fourth
cover and page 227 of the 2007 Diesel & Gas
Turbine Publications Global Sourcing Guide.
SIEMENS PG
Siemens AG
Power Generation
Freyeslebenstr. 1
91052 Erlangen, Germany
Tel: +49-(0)9131-187034
Fax: +49-(0)9131-187039
4400 Alafaya Trail
Orlando, Florida 32826, U.S.A.
Tel: 407-736-2000
Fax: 407-736-5008
E-mail: contact@pg.siemens.com
Website:
www.siemens.com/powergeneration
Gas Turbine Power Range
Mechanical Drive: 5.0 to 68.0 MW
Electric Generator Drive: 5.0 to to 287.0
MW
Gas Turbine Upgrades
Siemens reported upgrades to its gas
turbines in the 5 to 50 MW output
range for mechanical drive and power
generation. The SGT-800 unit has
reached the final stages of validation of
a power increase from 45 to 47 MW.
The engine is expected to be fully
released in the summer of 2008 as a
retrofit to installed packages or as a new
fully packaged unit.
The SGT-700 attracted more sales as
it became established in the worldwide
market among power producers and
power users. Both the SGT-600 and
SGT-700 are undergoing enhancements
to improve their competitiveness in the
oil and gas markets.
The fuel capability of the SGT-500
has been successfully broadened to
include heavy distillate. This will allow
the machine to operate more widely in
marine applications with fuel availability and cost advantages. All of the other
industrial gas turbines are being developed for wider nonstandard fuel capability using dual-fuel DLE technology.
The SGT-400 has now passed the
milestone of 500 000 accumulated
operating hours. This turbine has a
wide global acceptance in the oil and
gas markets in both generator drive and
mechanical drive applications, according to Siemens. Successes in the last
year have included multiple engine
orders in Latin America and Asia.
All engines are now offered in flexible configurations with extended scope
to closely match customer requirements. The concept of delivering a full
“Power Island” to the clients has proven
very successful. This concept builds on
