A power generation system includes at least one turbine system. The turbine system includes a compressor section comprising at least one stage, configured to supply a compressed oxidant and a combustion chamber configured to combust the compressed oxidant and a fuel stream comprising carbon-based fuels and to generate a hot flue gas. The turbine system further includes an expander section having an inlet for receiving the hot flue gas comprising at least two stages. The two stages include a high-pressure expander configured to generate an expanded exhaust gas rich in CO 2 . The high-pressure expander fluidly coupled to a low-pressure expander configured to generate a final exhaust and electrical energy. A CO 2 separation system is fluidly coupled to the high-pressure expander for receiving the expanded exhaust gas from the high-pressure expander and providing a CO 2 lean gas that is then fed to the low-pressure expander.

Systems and methods for power generation with carbon dioxide isolation

The placement of fully available prime movers having a DC output at a location inside or adjacent to an inverter-based intermittently available renewable energy site is disclosed. The fully available prime movers add reliability to an unreliable energy asset that is reaching its maximum penetration within the grid due to its unpredictability and the requirement for additional spinning reserves in other parts of the grid. The present invention can provide a portion or all of the power to an intermittently available renewable power generating facility so that the power output to the power grid is dispatchable power. In particular, a method and means are disclosed to utilize high-efficiency engines operated on various fuels some of which may be non-fossil fuels to maintain a constant power output from an otherwise intermittent power generating facility.

Dispatchable power from a renewable energy facility

A method and apparatus are disclosed for a gas turbine power plant with a variable area turbine nozzle and an integrated motor/alternator device for starting the gas turbine and power extraction after starting.

Multi-spool intercooled recuperated gas turbine

The present invention combines the principles of a gas turbine engine with an electric transmission system. A method and apparatus are disclosed for utilizing metallic and ceramic elements to store heat energy derived from a regenerative braking system. The subject invention uses this regenerated electrical energy to provide additional energy storage over conventional electrical storage methods suitable for a gas turbine engine. The subject invention provides engine braking for a gas turbine engine as well as reducing fuel consumption.

Gas turbine energy storage and conversion system

A gas turbine system includes a gas turbine (1, 2, 3) having a compressor (1) and a turbine (2), which via a common shaft (3) drive a generator (4), and a combustion chamber (6), the exit of which is connected to the entry to the turbine (2) of the gas turbine (1, 2, 3), has a fuel feed (8) and receives combustion air from the exit of the compressor (1) of the gas turbine (1, 2, 3) via the high-pressure side of a recuperator (5), the exit of the turbine (2) and the entry to the compressor (1) of the gas turbine (1, 2, 3) being connected via the low-pressure side of the recuperator (5), and a first exhaust-gas turbocharger (ATL2) which sucks in air being connected to different locations (9, 10) of the low-pressure side of the recuperator (4) via the exit of its compressor (13) and the entry to its turbine (14).

Method for operating a partially closed, turbocharged gas turbine cycle, and gas turbine system for carrying out the method

A method and system for increasing the pressure of gaseous fuel delivered to a fuel system of a gas turbine engine. A portion of pressurized gas or compressed air is discharged from a high-pressure section of the gas turbine engine and is communicated to a plurality of radial inflow turbines or axial flow turbines. Energy is transferred from each turbine to a plurality of compressors driven by the turbines. Gaseous fuel is supplied to an inlet of one of the compressors. The compressed gaseous fuel is then cooled downstream of the compressors. The aftercooled and compressed gaseous fuel is delivered to the fuel system of the gas turbine engine.

Turbocharger-based bleed-air driven fuel gas booster system and method

: The report is the second volume of a report describing the results of an analytical investigation of compressor sensitivity, conducted under Contract No. N00019-69-C-0602 for the Department of the Navy, Naval Air Systems Command. The objectives of the investigation were to develop an analytical model which simulates compressor response to spatial and temporal flow disturbances; to establish by application of the model the importance of various flow mechanisms, and their relationship to design variables, in determining compressor response; and to establish some design trends by means of a limited parametric study. This volume contains the detailed mathematical development of the models and the theoretical background of the equations that were utilized; the results of the studies are described in general terms in Volume 1. (Author)

Compressor Sensitivity to Transient and Distorted Transient Flows. Volume II. Mathematical Details and Computer Programs.

: An analytical simulation model of compressor dynamic response to spatial and temporal flow disturbances was developed. The model was applied to evaluate the response of the YTF-33 six-stage low pressure compressor and the YTF-33 two-stage front fan to various flow disturbances, for parametric variations in design parameters and nominal operating conditions. Detailed analyses of typical responses established the importance of various flow mechanisms in determining compressor response; specifically, it was found that wave propagation and interaction in the compressor, and the spatial and temporal development of rotating stall exert dominant influences, while dynamic blade-element response is of minor significance in purely transient responses. The results of the model were found to be in qualitative, and in some cases quantitative, agreement with hardware test experience. On this basis, compressor sensitivity trends were related to several design variables. (Author)

Willem Jansen

Papers

Turbocharger-based bleed-air driven fuel gas booster system and method

Compressor Sensitivity to Transient and Distorted Transient Flows. Volume II. Mathematical Details and Computer Programs.

Compressor Sensitivity to Transient and Distorted Transient Flows.