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Title: Gas turbine cooling system

Abstract

A gas turbine engine (10) having a closed-loop cooling circuit (39) for transferring heat from the hot turbine section (16) to the compressed air (24) produced by the compressor section (12). The closed-loop cooling system (39) includes a heat exchanger (40) disposed in the flow path of the compressed air (24) between the outlet of the compressor section (12) and the inlet of the combustor (14). A cooling fluid (50) may be driven by a pump (52) located outside of the engine casing (53) or a pump (54) mounted on the rotor shaft (17). The cooling circuit (39) may include an orifice (60) for causing the cooling fluid (50) to change from a liquid state to a gaseous state, thereby increasing the heat transfer capacity of the cooling circuit (39).

Inventors:
 [1]
  1. (Orlando, FL)
Publication Date:
Research Org.:
Westinghouse Electric Corp
OSTI Identifier:
874020
Patent Number(s):
US 6295803
Assignee:
Siemens Westinghouse Power Corporation (Orlando, FL) ORNL
DOE Contract Number:  
FC21-95MC32267
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
gas; turbine; cooling; engine; 10; closed-loop; circuit; 39; transferring; heat; hot; section; 16; compressed; air; 24; produced; compressor; 12; exchanger; 40; disposed; flow; path; outlet; inlet; combustor; 14; fluid; 50; driven; pump; 52; located; outside; casing; 53; 54; mounted; rotor; shaft; 17; orifice; 60; causing; change; liquid; gaseous; increasing; transfer; capacity; turbine section; transferring heat; cooling fluid; compressed air; turbine engine; heat exchange; heat exchanger; heat transfer; gas turbine; flow path; located outside; cooling circuit; rotor shaft; closed-loop cooling; loop cooling; /60/415/

Citation Formats

Bancalari, Eduardo E. Gas turbine cooling system. United States: N. p., 2001. Web.
Bancalari, Eduardo E. Gas turbine cooling system. United States.
Bancalari, Eduardo E. Mon . "Gas turbine cooling system". United States. https://www.osti.gov/servlets/purl/874020.
@article{osti_874020,
title = {Gas turbine cooling system},
author = {Bancalari, Eduardo E.},
abstractNote = {A gas turbine engine (10) having a closed-loop cooling circuit (39) for transferring heat from the hot turbine section (16) to the compressed air (24) produced by the compressor section (12). The closed-loop cooling system (39) includes a heat exchanger (40) disposed in the flow path of the compressed air (24) between the outlet of the compressor section (12) and the inlet of the combustor (14). A cooling fluid (50) may be driven by a pump (52) located outside of the engine casing (53) or a pump (54) mounted on the rotor shaft (17). The cooling circuit (39) may include an orifice (60) for causing the cooling fluid (50) to change from a liquid state to a gaseous state, thereby increasing the heat transfer capacity of the cooling circuit (39).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}

Patent:

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