Abstract
A 5000-hp, one-compressor, two-turbine gas-turbine power plant is described, its features are discussed, and its expected capability and economy are given. The plant which is designed to have a maximum of flexibility in its application is intermediate in efficiency and complication between a simple one-compressor, one-turbine non-regenerative power plant and a two-compressor, two-turbine intercooled and regenerative power plant designed by the authors’ company. The axial-flow compressor has 14 stages and operates at a pressure ratio of 5.5. The turbine has two stages. The second stage produces the useful load and has a nozzle arranged so that its effective flow area can be varied during operation. The six combustion chambers are expected to operate at 800 F preheat and at 650 F rise. The cylindrically shaped regenerator when used is mounted on end and outdoors. The lube-oil system is similar to that used for steam turbines. The plant can be supplied either with a motor-driven or a turbine-driven cranking assembly. The control means for starting and stopping the plant and for controlling the turbine speeds and temperatures during operation is described. The installation requirements such as weights, outline dimensions, and water requirements are given.
