RKP LIQUID FUEL METERING SYSTEM0 pages

RKP t
LIQUID FUEL
METERING SYSTEM
Energy Saving, Compact

ENERGY EFFICIENCY FOR GAS TURBINE OPERATORS

ADVANTAGES

With today’s escalating energy costs, the manufacturers of Dual Fuel Gas
Turbines are constantly looking for ways to improve efficiency, and meet ever
more stringent emissions requirements. Key to these needs is the Liquid Fuel
Metering function, which directly controls the supply of liquid fuel to the turbine
burners (e.g. comparable to diesel). Moog has been working on fuel metering
technology to improve performance for over 20 years.

•tImproved reliability due to integrated
construction

Moog has developed a new fuel efficient fuel metering system using tandem
variable displacement RKP pumps with up-rated compensator and revised spring
configuration to improve frequency response. Liquid fuel Moog Direct Drive
Valves (DDVs) are mounted to the pump to independently control flow to the main
burner and the pilot burner and to ensure fuel is supplied on demand rather than
by spilling excess flow (as in the traditional system). Consequently the new Moog
system typically uses a 22 kW AC motor whereas the traditional system often
requires a 30 kW motor, already demonstrating reduced in service running costs
(energy saving).
This technology has already been applied to turbines of power levels of up to
15 MW corresponding to fuel flow rates ofup to 100lpm (26.4 gpm) at 100 bar
(1450 psi). Typical fuel types that have been accommodated include diesel and
diesel derivatives. The system is ATEX certified for use in Group 2, Category 3
hazardous areas.

Motor
Main Burner
Fuel Tank

Pilot Burner

Inputs

WHAT MOVES YOUR WORLD

Moog RKP Fuel Metering

Turbine

•tReduced fuel consumption due to
improved fuel metering accuracy
•tReduced energy costs due to improved
pumping efficiency
•tSimplified installation due to
integrated construction
•tWide range of flow-rates from single
standardised compact package
•tImproved start-up performance due to
independent fuel metering streams

INDUSTRY APPLICATIONS
•tFuel metering for gas turbines
•tWider applications where very precise
fuel metering of liquid flow is required