# US 2014/0360217 A1 · Cooling system for use in a turbine assembly and method of assembly

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- Number: US 2014/0360217 A1
- Document ID: US20140360217A1
- Status: Published application
- Kind: A1
- Application number: 13/915,291
- Filed: 2013-06-11
- Published: 2014-12-11
- Earliest claimed: 2013-06-11
- Assignees: BHA Altair, LLC
- Applicants: BHA Altair, LLC
- Inventors: Timothy John Nicholas
- Web page: https://patentgrep.com/patent/US20140360217A1

## CPC

- F02C 7/1435: {by water injection}
- F02C 7/05: having provisions for obviating the penetration of damaging objects or particles
- F05D 2230/60: Assembly methods
- Y10T 29/49229: Prime mover or fluid pump making
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A cooling system for use in a turbine assembly is provided. The cooling system includes a first filter configured to remove particles entrained in a flow of intake air, an array of nozzles downstream from the first filter, and a second filter downstream from the array. The array of nozzles is configured to facilitate reducing a temperature of the intake air, and the second filter is configured to repel cooling liquid discharged from the array of nozzles while allowing cooled intake air to flow therethrough.

## Claims

### Claim 1

A cooling system for use in a turbine assembly, said system comprising:
a first filter configured to remove particles entrained in a flow of intake air;
an array of nozzles downstream from said first filter, said array of nozzles configured to facilitate reducing a temperature of the intake air; and
a second filter downstream from said array, said second filter configured to repel cooling liquid discharged from said array of nozzles while allowing cooled intake air to flow therethrough.

### Claim 2 (depends on 1)

The system in accordance with claim 1, wherein the cooling system facilitates reducing the temperature of the intake air without the use of an evaporative cooler.

### Claim 3 (depends on 1)

The system in accordance with claim 1, wherein said second filter comprises a filter media fabricated from a hydrophobic material.

### Claim 4 (depends on 3)

The system in accordance with claim 3, wherein the hydrophobic material comprises at least one of an expanded-polytetrafluoroethylene (ePTFE) material, a C6 fluorocarbon material, a C8 fluorocarbon material, and plasma treated materials.

### Claim 5 (depends on 1)

The system in accordance with claim 1, wherein said second filter comprises an array of filter elements.

### Claim 6 (depends on 5)

The system in accordance with claim 5, wherein said filter array is obliquely oriented relative to a vertical axis at an angle between about 0 degrees and about 20 degrees from the vertical axis.

### Claim 7 (depends on 1)

The system in accordance with claim 1, wherein said second filter comprises a high-efficiency filter that may be measured in accordance with at least one of EN1822 and EN779.

### Claim 8 (depends on 1)

The system in accordance with claim 1, wherein said nozzle array is configured to discharge the cooling liquid towards said second filter to form a layer of cooling liquid on a surface of said second filter.

### Claim 9

A gas turbine assembly comprising:
a filter house comprising:
a first filter configured to remove particles entrained in a flow of intake air;
an array of nozzles downstream from said first filter, wherein said array is configured to facilitate reducing a temperature of the intake air; and
a second filter downstream from said array, wherein said second filter is configured to repel cooling liquid discharged from said array of nozzles while allowing cooled intake air to flow therethrough; and
a duct coupled to an outlet of said filter house, wherein said duct is configured to channel the cooled intake air downstream therefrom.

### Claim 10 (depends on 9)

The assembly in accordance with claim 9, wherein the intake air channeled through said filter house is facilitated to be cooled without the use of an evaporative cooler.

### Claim 11 (depends on 9)

The assembly in accordance with claim 9, wherein said second filter comprises an array of filter elements.

### Claim 12 (depends on 9)

The assembly in accordance with claim 9, wherein said filter array is obliquely oriented relative to a vertical axis at an angle between about 0 degrees and about 20 degrees from the vertical axis.

### Claim 13 (depends on 9)

The assembly in accordance with claim 9, wherein said nozzle array is configured to discharge the cooling liquid towards said second filter to form a layer of cooling liquid on a surface of said second filter.

### Claim 14 (depends on 13)

The assembly in accordance with claim 13, wherein the intake air is channeled through the layer of cooling liquid towards said second filter to facilitate reducing the temperature of the intake air.

### Claim 15 (depends on 9)

The assembly in accordance with claim 9 further comprising a cooling liquid recirculation system that is configured to channel cooling liquid run-off from said second filter to said nozzle array.

### Claim 16

A method of assembling a cooling system for use in a turbine assembly, said method comprising:
coupling a first filter within a filter house, wherein the first filter is configured to remove particles entrained in a flow of intake air;
positioning an array of nozzles downstream from the first filter, wherein the array is configured to facilitate reducing a temperature of the intake air; and
positioning a second filter downstream from the array, wherein the second filter is configured to repel cooling liquid discharged from the array of nozzles while allowing cooled intake air to flow therethrough.

### Claim 17 (depends on 16)

The method in accordance with claim 16, wherein positioning an array of nozzles comprises orienting the array to spray the cooling liquid towards the second filter to form a layer of cooling liquid on a surface of the second filter.

### Claim 18 (depends on 16)

The method in accordance with claim 16 further comprising orienting the second filter obliquely with respect to a vertical axis at an angle between about 0 degrees and about 20 degrees from the vertical axis.

### Claim 19 (depends on 16)

The method in accordance with claim 16, wherein positioning a second filter comprises arranging an array of filter elements downstream from the nozzle array.

### Claim 20 (depends on 16)

The method in accordance with claim 16 further comprising forming the second filter from a filter media fabricated from a hydrophobic material.
