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Title: Closed-loop brayton cycle system with turbine blade cooling

Abstract

A closed-loop Brayton cycle system utilizes supercritical carbon dioxide as the working fluid for the system to achieve higher efficiencies than can be achieved with traditional open-loop gas turbine engines. A bleed channel is used to direct a flow of cooling fluid to cool the turbine blades during operation of the system, preventing damage to the turbine blades during operation of the system. The bleed channel includes a bleed inlet fluidly coupled between a first recuperator and a second recuperator and a bleed outlet fluidly coupled to the turbine blades. The bleed channel is configured to direct the flow of cooling fluid to the turbine blades at a desired temperature and pressure.

Inventors:
;
Issue Date:
Research Org.:
Hamilton Sundstrand Corporation, Charlotte, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1986962
Patent Number(s):
11536164
Application Number:
17/661,462
Assignee:
Hamilton Sundstrand Corporation (Charlotte, NC)
DOE Contract Number:  
EE0009138
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/29/2022
Country of Publication:
United States
Language:
English

Citation Formats

Taylor, Stephen H., and Ranjan, Ram. Closed-loop brayton cycle system with turbine blade cooling. United States: N. p., 2022. Web.
Taylor, Stephen H., & Ranjan, Ram. Closed-loop brayton cycle system with turbine blade cooling. United States.
Taylor, Stephen H., and Ranjan, Ram. Tue . "Closed-loop brayton cycle system with turbine blade cooling". United States. https://www.osti.gov/servlets/purl/1986962.
@article{osti_1986962,
title = {Closed-loop brayton cycle system with turbine blade cooling},
author = {Taylor, Stephen H. and Ranjan, Ram},
abstractNote = {A closed-loop Brayton cycle system utilizes supercritical carbon dioxide as the working fluid for the system to achieve higher efficiencies than can be achieved with traditional open-loop gas turbine engines. A bleed channel is used to direct a flow of cooling fluid to cool the turbine blades during operation of the system, preventing damage to the turbine blades during operation of the system. The bleed channel includes a bleed inlet fluidly coupled between a first recuperator and a second recuperator and a bleed outlet fluidly coupled to the turbine blades. The bleed channel is configured to direct the flow of cooling fluid to the turbine blades at a desired temperature and pressure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {12}
}

Works referenced in this record:

Turbo-Generator with Integral Cooling
patent-application, November 2021


Surge control system for a closed cycle cryocooler
patent, June 1989


Micro-Scale Engines, Components, and Methods for Generating Power
patent-application, June 2011


Regenerative Turbine for Power Generation System
patent-application, March 2014


Recuperated Rankine boost cycle
patent, June 2016


Systems and Methods for Part Load Control of Electrical Power Generating Systems
patent-application, March 2014


Power and cooling unit (PCU)
patent, November 2021


Supercritical CO2 generation system
patent, March 2018