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Title: Variable volume combustor with an air bypass system

Abstract

The present application provides a combustor for use with flow of fuel and a flow of air in a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles positioned within a liner and an air bypass system position about the liner. The air bypass system variably allows a bypass portion of the flow of air to bypass the micro-mixer fuel nozzles.

Inventors:
; ; ;
Publication Date:
Research Org.:
GENERAL ELECTRIC COMPANY, Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1343286
Patent Number(s):
9,562,687
Application Number:
13/760,101
Assignee:
GENERAL ELECTRIC COMPANY NETL
DOE Contract Number:
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Feb 06
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Johnson, Thomas Edward, Ziminsky, Willy Steve, Ostebee, Heath Michael, and Keener, Christopher Paul. Variable volume combustor with an air bypass system. United States: N. p., 2017. Web.
Johnson, Thomas Edward, Ziminsky, Willy Steve, Ostebee, Heath Michael, & Keener, Christopher Paul. Variable volume combustor with an air bypass system. United States.
Johnson, Thomas Edward, Ziminsky, Willy Steve, Ostebee, Heath Michael, and Keener, Christopher Paul. Tue . "Variable volume combustor with an air bypass system". United States. doi:. https://www.osti.gov/servlets/purl/1343286.
@article{osti_1343286,
title = {Variable volume combustor with an air bypass system},
author = {Johnson, Thomas Edward and Ziminsky, Willy Steve and Ostebee, Heath Michael and Keener, Christopher Paul},
abstractNote = {The present application provides a combustor for use with flow of fuel and a flow of air in a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles positioned within a liner and an air bypass system position about the liner. The air bypass system variably allows a bypass portion of the flow of air to bypass the micro-mixer fuel nozzles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 07 00:00:00 EST 2017},
month = {Tue Feb 07 00:00:00 EST 2017}
}

Patent:

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  • The present application provides a combustor for use with a gas turbine engine. The combustor may include a number of fuel nozzles, a pre-nozzle fuel injection system supporting the fuel nozzles, and a linear actuator to maneuver the fuel nozzles and the pre-nozzle fuel injection system.
  • The present application provides a combustor for use with a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles, a fuel manifold system in communication with the micro-mixer fuel nozzles to deliver a flow of fuel thereto, and a linear actuator to maneuver the micro-mixer fuel nozzles and the fuel manifold system.
  • A multi-zone thermal energy storage variable air volume heating and cooling air conditioning system for capacity effective averaging in the selection of a multiplicity of continuously operable refrigeration cooling units that may vary in capacity and each operable at its optimum capacity and assigned to a separate zone space is described including: a zone space heating and cooling units and each comprising a heating means and a refrigeration means between common supply and return air ducts. The refrigeration means directs refrigerant through a condenser and through an air conditioning coil, an air intake duct from the assigned zone space deliveringmore » return air from the zone space and through the air conditioning coil, a supply air duct delivering conditioned air into the zone space from the air conditioning coil, and blower means driving air through the ducts. A variable air volume by-pass duct from the supply air duct to the intake air duct and with air volume damper means responsive to air pressure in the supply air duct, a zone space damper means at the discharge of the supply air duct into the zone space, a chilled water storage tank with pump means circulating the chilled water through a closed circuit, a charging coil in the supply air duct downstream from the air conditioning coil and a recooling coil in the supply air duct upstream from the air conditioning coil and each selectively in closed circuit by valve means through the chilled water storage tank, control means responsive to zone space temperature to operate the heating means below a selected temperature, and control means responsive to duct air temperature to open the valve means from the chilled water storage tank are included.« less
  • A variable air volume ventilation system (10) is disclosed in which the output air flow from a supply fan (13), delivered through a supply duct (11) to various places within a building, is returned by a return duct (15) through a return fan (17) and then through a connecting duct (18) back to the inlet (20) of the supply fan (13). The static pressure in the supply duct (11) is sensed by a static pressure sensor (40), and the output signal indicative of pressure is used by a variable frequency power supply (44) to provide power to drive the fanmore » motors (36,37) at a frequency inversely proportional to the difference between the sensed static pressure and a desired static pressure, thereby adjusting the flow through the ventilation system to match demand. Outside make-up air is provided through an outside air duct (50) and is fed into the return duct (15) at a position (52) near the inlet (16) of the return fan (17). The air flow through the outside air duct is controlled to a constant flow rate which matches the expected rate of exhaust air from the building so that the flow of air into and out of the building is balanced despite changes in the rate of flow through the ventilating system in response to demand.« less
  • This patent describes a multi-zone thermal energy storage variable air volume heat pump system for capacity effective averaging in and selection of a multiplicity of continuously operable heat pumps that may vary in capacity and each operable at its optimum capacity and assigned to a separate zone space, and including: heat pumps comprising a refrigerant compressor with a reversing valve directing refrigerant in alternate directions through an air conditioning coil and a water conditioning coil, an air intake duct from the assigned zone space delivering return air from the zone space and through the air conditioning coil, a supply airmore » duct delivering conditioned air into the zone space from the air conditioning coil, and blower means driving air through the ducts; a variable air volume by-pass duct from the supply air duct to the intake air duct and with air volume damper means responsive to air pressure in the supply air duct; a zone space damper means at the discharge of the supply air duct into the zone space; a chilled water storage tank with pump means circulating the chilled water through a closed circuit; a hot water storage tank with pump; a charging coil in the supply air duct downstream from the air conditioning coil and air-cooling coil in the supply air duct upstream from the air conditioning and each selectively in closed circuit by valve means through the chilled water storage tank, and the re-cooling coil selectively in closed circuit by the valve means through the hot water storage tank; and control means responsive to duct air temperature to open the valve means from the chilled water storage tank and its closed circuit through the charging coil for chilled water storage when excess cooling is available downstream of the air conditioning.« less