FT8 Gas Turbine
Aeroderivative Gas Turbine
for Industrial Applications
Engineering the Future –
since 175 8.
1 FT8 on base frame during workshop assembly
2 Cutaway view of the FT8 (with standard combustion system)
MAN Turbo offers the world’s most comprehensive product line of compressors and turbines. Innovation, ongoing development and modern technology guarantee the competitiveness of our products (single source solutions) for the lifetime of a machine.
Gas turbines have been included in the range of products since 1988. In 1990, the gas turbine product line was expanded by adding the FT8 gas turbine through signing a co-operation agreement with Pratt& Whitney Power Systems (PWPS). With the FT8 gas turbine, MAN Turbo offers a prime mover, enabling customers to obtain the reliable, environmentally sound and economic technology they require for a variety of their applications.
FT8 Gas Turbine
The LPC (Low Pressure Compressor)
By mid-2008 more than 370 of the
has 8 rotor stages and 7 stator stages.
“Standard Combustion System” which
extremely successful FT8 gas turbine
The inlet guide vanes as well as the first
permits the use of various gaseous and
packages had been delivered or were on
two stator vane stages have been fitted
liquid fuels – with different specifications
order. The highly efficient FT8 gas turbine
with variable geometry. Variable vane
as well as combinations in any percent-
The basic version comprises a so-called
consists of a GG8 gas generator and a
movement provides optimum efficiency
age mix and thereby offering high fuel
PT8 power turbine (also referred to as a
for the compressor over the complete
“free-running” turbine). The gas genera-
speed range and excellent part-load
tor provides high-energy gas to the power
efficiency. The LPC rotor is connected
A DLN (DryLowNOx) combustion system
turbine, where this gas performs work
to the 2-stage LPT (Low Pressure
for gaseous fuel operation is available as
when mechanically coupled to a driven
Turbine) rotor by the LP-shaft which is
an option. The extremely robust DLN
load through a flexible coupling.
conducted through the tubular HP-shaft
system allows quick load changes and is
connecting the HPC (High Pressure
insensitive to changing gas compositions
GG8 - Gas Generator
and ambient conditions.
The two-shaft gas generator has been
derived from the latest version of the most
Standard Combustion System
successful aero-engine in commercial
The HPC consists of seven rotor stages
In the case of the standard combustion
service, the Pratt&Whitney JT8D-219,
and seven stator stages and is driven by
system the combustion section has nine
which has achieved highest recorded
the single-stage HPT. W ith this arrange-
chambers (cans) arranged in an annulus
sales of >14,500 engines.
ment the LP-system and HP-system are
around the turbine shafts and positioned
running at their own optimum speed
between the High Pressure Compressor
without mechanical interaction.
and the High Pressure Turbine. The
The major components of the gas
generator are the two compressor
combustion chambers are enclosed by
modules (LP and HP), the combustion
inner and outer casings. The outer casing
section and the two turbine modules
Depending on the application the FT8
can be unbolted and moved rearward to
(HP and LP).
gas turbine can be equipped with two
allow for easy inspection or removal of
different combustion systems.
the combustion chambers and fuel
1 Combustion section with bur ner cans (standard
2 FT8 gas turbine on base frame with DLN
Two combustion chambers...
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