GAS TURBINE DEVICE USING SUPERCRITICAL FLUID AS COOLING FLUID

• US 20150167554A1
• Filed: 04/28/2014
• Published: 06/18/2015
• Est. Priority Date: 12/12/2013
• Status: Active Grant

• Current Assignee: Industry Academic Cooperation Foundation
• Original Assignee: Industry Academic Cooperation Foundation
• Inventors: KIM, Beom Seok, KIM, Seon Ho, CHO, Hyung Hee, KIM, Kyung Min, MOON, Ho Kyu, PARK, Jun Su
• Granted Patent: US 9,638,104 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F02C 1/08 Semi-closed cycles
• CPC Class Codes: F02C 6/18 using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants using waste heat as source of energy for refrigeration plants F25B27/02; using the waste heat of a gasturbine for steam generation or in a steam cycle see F01K23/10
• CPC Class Codes: F02C 7/12 Cooling of plants of component parts, see the relevant subclasses, e.g. F01D; cooling of engines in general F01P
• CPC Class Codes: F02C 7/16 characterised by cooling medium
• CPC Class Codes: F02C 7/18 the medium being gaseous, e.g. air F02C7/125 takes precedence
• CPC Class Codes: F05D 2210/14 Refrigerants with particular properties, e.g. HFC
• CPC Class Codes: F23M 5/08 Cooling thereof; Tube walls
• CPC Class Codes: F23R 3/005 Combined with pressure or heat exchangers

Abstract

The present invention relates to a gas turbine device using a supercritical fluid as a cooling fluid, the gas turbine device having a compressor for compressing air, a combustor for burning the air emitted from the compressor and fuel, and a turbine driven by the burned gas emitted from the combustor, wherein the gas turbine device includes cooling passages formed in the combustor and the turbine, along which the supercritical fluid as a cooling fluid flows to allow the combustor and the turbine to be cooled.

Claims

1. A gas turbine device using a supercritical fluid as a cooling fluid, the gas turbine device comprising:

a compressor (100) for compressing air;

a combustor (200) for burning the air emitted from the compressor (100) and fuel;

a turbine (300) driven by the burned gas emitted from the combustor (200);

end

cooling passages (400) formed in the combustor (200) and the turbine (300), along which the supercritical fluid as a cooling fluid flows to allow the combustor (200) and the turbine (300) to be cooled.

2. The gas turbine device according to claim 1, further comprising a carbon dioxide collector for collecting carbon dioxide from the flue gas emitted from the turbine (300) driven by the burned gas.

3. The gas turbine device according to claim 1, wherein the supercritical fluid is carbon dioxide.

4. A gas turbine device using a supercritical fluid as a cooling fluid, the gas turbine device comprising:

a main power generation gas turbine device (10) having a compressor (100) for compressing air, a combustor (200) for burning the air emitted f roc the compressor (100) and fuel, a turbine (300) driven by the burned gas emitted from the combustor (200), and cooling passages (400) formed in the combustor (200) and the turbine (300), along which the supercritical fluid as a cooling fluid flows to allow the combustor (200) and the turbine (300) to be cooled; and

an auxiliary power generation gas turbine device (20) having a supercritical fluid compressor (500) and a supercritical fluid turbine (600), the outlet of the supercritical fluid compressor (500) being connected to the inlet of the cooling passage (400) formed in the combustor (200) or the turbine (300) of the main power generation gas turbine device (10), and the inlet of the supercritical fluid turbine (600) being connected to the cutlet of the cooling passage (400) formed in the combustor (200) or the turbine (300) of the main power generation gas turbine device (10), wherein the supercritical fluid is compressed in the supercritical fluid compressor (500), heated through the cooling passage (400), and supplied to the supercritical fluid turbine (600).

5. The gas turbine device according to claim 4, wherein the supercritical fluid is carbon dioxide.

6. The gas turbine device according to claim 5, further comprising a carbon, dioxide collector for collecting carbon dioxide from the flue gas emitted from the turbine (300) driven by the burned gas in the main power generation gas turbine device (10).

7. The gas turbine device according to claim 6, wherein the carbon dioxide collected in the carbon dioxide collector is cooled and supplied to the supercritical fluid compressor (500) in the auxiliary power generation gas turbine device (20).

8. The gas turbine device according to claim 4, wherein the auxiliary power generation gas turbine device (20) is connected to the cooling passage (400) formed in the combustor (200) and to the cooling passage (400) formed in the turbine (300), respectively.

9. The gas turbine device according to claim 4, wherein one auxiliary power generation gas turbine device (20) is connected to a coupling inlet portion where the inlets of the cooling passages (400) of the combustor (200) and the turbine (300) are connected to form one inlet and to a coupling outlet portion where the outlets of the cooling passages (400) of the combustor (200) and the turbine (300) are connected to form one outlet.