Gas Turbine Handbook : Principles and Practices

230 Gas Turbine Handbook: Principles and Practices
which will provide power to the electric grid to meet its customer’s
needs.
SPPCo has contracted with Foster Wheeler USA Corporation
(FWUSA) for engineering procurement and construction management
services for the project. FWUSA in turn has subcontracted
with The M.W. Kellogg Company (MWK) for engineering and other
services related to the gasifier island. General Electric has been
selected to provide the MS6001FA gas turbine/air-cooled generator
and steam turbine/TEWAC generator for the project. At Piñon Pine
site conditions these units will have a combined cycle output of
about 100MW.
The Piñon Pine project is the first air blown IGCC power plant
to incorporate an “F”-technology gas turbine generator. This type
of combustion turbine has a high combined cycle efficiency which
greatly enhances the economic justification of an IGCC application.
The Piñon Pine Power Project will be an early application of the
MS6001FA which is nominally a 70 MW design, scaled from the
MS7001FA.
This paper reviews the basic overall gasification and power
plant configuration of The Piñon Pine Power Project and focuses
on the integration of the MS6001FA gas turbine within this configuration.
Specifically, aspects of the low Btu combustion system,
compressor air extraction, fuel delivery system and control system
are addressed.
INTRODUCTION
Role of IGCC Power Plants
Although the preponderance of recent domestic powerplant
construction has been based on either simple or combined cycle natural
gas fueled combustion turbines, coal-fired power plants are still
a mainstay of power generation world-wide. The emissions produced
by coal combustion have led to environmental concerns to the point
where coal use for electricity generation has been threatened. Parallel
to the installation of flue gas scrubbers in conventional coal-fired
power plants, IGCC development is proceeding on innovative power
plant concepts which are not only more acceptable from an environmental
standpoint, but also feature higher efficiency. To apply