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129417

Enhancing Air Side Heat Transfer Coefficient of Flat Tube Air Cooled Condensers.

Article

Last updated: 22 Jan 2023

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Tags

Mechanical Power Engineering

Abstract

Forced convection heat transfer for air side over aluminum extruded micro-channel fat tubes, which used in air cooled condensers, was studied theoretically. Mathematical modeling of air flow outside the aluminum flat tubes were carried out to study the proposed inclination angles and evaluate the thermal performance for different operating parameters. A computational fluid dynamic software (CFD) is used to solve this problem. Two proposed cases for inclination of the flat tubes are studied. The first case is to make convergent and divergent channels for air Now, while the second case is tilting of all tubes in parallel to each other. Inclination for the flat tubes by a certain angle improves the convection side and in turn improves the overall thermal performance of the air cooled condenser. The theoretical results show that the optimum angle for the proposed two cases was about 4° with corresponding aspect ratio of 0.58. This leads to enhancement the heat transfer coefficient by factor (Kh) of 1.469 and 1.46 against increase in pressure drop factor (KP) of 2.12 and 1.95 for case-land cusc-2, respectively. 

DOI

10.21608/bfemu.2020.129417

Keywords

CFD, Flattened tube heat exchanger - air cooled condenser

Authors

First Name

Mohamed Mahmoud

Last Name

Awad

MiddleName

Mostafa

Affiliation

Faculty of Engineering Mansoura University., Mansoura., Egypt

Email

-

City

Mansoura

Orcid

-

First Name

Hesham

Last Name

Mostafa

MiddleName

-

Affiliation

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

Email

drheshammostafa@yahoo.com

City

Tenth of Ramadan

Orcid

-

First Name

Gamal

Last Name

Sultan

MiddleName

Ebrahim

Affiliation

Department of Mechanical Power Engineering, Mansoura University, Mansoura, Egypt

Email

gisultan@mans.edu.eg

City

Mansoura

Orcid

-

First Name

A.

Last Name

Elbooz

MiddleName

-

Affiliation

Faculty of Engineering Mansoura University., Mansoura., Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

A.

Last Name

El-Ghonemy

MiddleName

-

Affiliation

Higher Technological Institute, Tenth of Ramadan City, Egypt

Email

amghonemy@yahoo.com

City

Tenth of Ramadan

Orcid

-

Volume

31

Article Issue

1

Related Issue

19222

Issue Date

2006-03-01

Receive Date

2006-01-11

Publish Date

2020-12-13

Page Start

15

Page End

24

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 31_Issue 1_Pages 15-24.pdf

PDF . 585.3kB

Link

https://bfemu.journals.ekb.eg/article_129417.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=129417

Order

19

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

-

Details

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Article

Created At

22 Jan 2023