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170691

Experimental Study of the Augmentation of Convection Heat Transfer in Horizontal Circular Tube using Tripping Wires Inserts.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Mechanical Power Engineering

Abstract

The work summarizes the results of the exp erimental investigation of convective heat transfer and pressure loss characteristics of air flow in horizontal circular copper tube of diameters 133/22 mm. The coil wire (with diameter of 1.4 mm) was inserted in the tested tube. The helix angle changed from 4.26oc to 30.78°. The outer surface of the tube was heated by a little superheated steam (2-3°C) at one atmosphere. During the experimental work, Reynolds number changed from 60 to 4000 and Prandtl number was about 0.7. The enhancement of heat transfer for the tested tube with internal coils was higher than that of the bare tube by about 57%. However, a quantitevely increase in hydrodynamic resistance was noticed. Correlation of Nusslet number and friction coefficient has been made. It was found that the Nusslet number was strongly dependent nn Reynolds number, wherase the friction coefficient is dependant on helix angle as well as Reynolds number. 

DOI

10.21608/bfemu.2021.170691

Authors

First Name

Ahmed

Last Name

Sultan

MiddleName

Abd El-Razik Ahmed

Affiliation

Mechanical Power Engineering Department., Faculty of Engineering., EL-Mansoura University., El-Mansoura Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

M.

Last Name

Shalaby

MiddleName

A.

Affiliation

Mechanical Power Engineering Department, Faculty of Engineering, EL-Mansoura University, El-Mansoura Egypt.

Email

m.25jan@yahoo.com

City

Mansoura

Orcid

-

First Name

F.

Last Name

Arid

MiddleName

F.

Affiliation

Mechanical Power Engineering Department, Faculty of Engineering, EL-Mansoura University, El-Mansoura Egypt.

Email

-

City

Mansoura

Orcid

-

Volume

15

Article Issue

1

Related Issue

24850

Issue Date

1990-06-01

Receive Date

1990-04-16

Publish Date

2021-05-19

Page Start

47

Page End

54

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 15_Issue 1_Pages 47-54.pdf

PDF . 98.2kB

Link

https://bfemu.journals.ekb.eg/article_170691.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=170691

Order

13

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

Experimental Study of the Augmentation of Convection Heat Transfer in Horizontal Circular Tube using Tripping Wires Inserts.

Details

Type

Article

Created At

22 Jan 2023