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103979

Investigation of Gas Turbine Blades Cooling using Triangular Cross-Section Channel Provided with Ribs.

Article

Last updated: 04 Jan 2025

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Tags

Mechanical Power Engineering

Abstract

Heat transfer has been investigated in an equilateral triangular channel with slide length 2 cm, hydraulic diameter Dh = 1.1547 cm with ribs fixed to the internal surface of the channel to simulate the internal cooling channel near the leading edge of the gas turbine blade. The simulation has been done for two different ribs configurations (one wall ribbed and two walls ribbed) with different pitch ratios (p/e) of 5, 7.5, 10, 12.5, Reynolds numbers varied from 20,000 to 70,000 at stationary and rotating channel with speed of 3000 rpm, with rotational number range from 0.39 to1.37. A numerical investigation is conducted using a commercial package (Fluent 6.3.26) where the flow and heat transfer characteristics were investigated. The results show that, the heat transfer coefficient for two walls ribbed is better than for one wall ribbed channel at stationary condition. Also, from the results it is concluded that the best heat transfer occurs at pitch ratio of 10 for one wall ribbed and stationary channel, while the two walls ribbed gives the best heat transfer at pitch ratio of 7.5 either for stationary or rotating channel

DOI

10.21608/bfemu.2020.103979

Keywords

Gas turbine blade cooling, heat transfer, Equilateral triangular ribbed channel

Authors

First Name

Hossam

Last Name

Mahgoub

MiddleName

A.

Affiliation

Egypt Mansoura, Mansoura University, Mech. Power Eng. Dept .

Email

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City

-

Orcid

-

First Name

Ahmed

Last Name

Sultan

MiddleName

A.

Affiliation

Egypt Mansoura, Mansoura University, Mech. Power Eng. Dept

Email

-

City

-

Orcid

-

First Name

Hesham

Last Name

Mostafa

MiddleName

M.

Affiliation

Egypt, Tenth of Ramadan City, Higher Technological Institute, Mech. Eng. Dept

Email

-

City

-

Orcid

-

First Name

Waleed

Last Name

Elawady

MiddleName

-

Affiliation

Egypt Mansoura, Mansoura University, Mech. Power Eng. Dept

Email

-

City

-

Orcid

-

Volume

41

Article Issue

4

Related Issue

15137

Issue Date

2016-12-01

Receive Date

2016-10-21

Publish Date

2016-12-01

Page Start

28

Page End

38

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 41_Issue 4_Pages 28-38.pdf

PDF . 1.5MB

Link

https://bfemu.journals.ekb.eg/article_103979.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=103979

Order

10

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Investigation of Gas Turbine Blades Cooling using Triangular Cross-Section Channel Provided with Ribs.

Details

Type

Article

Created At

22 Jan 2023