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198876

Study of Parameters Affecting Thermal Drying Process.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Mechanical Power Engineering

Abstract

Parameters affecting drying process has been studied experimentally as it associated with heat and mass transfer between porous bed to be dried and air which flows through the porous bed. To perform this study, a test rig is designed and constructed as it consists of vertical circular duct packed with wet porous bed which is made from clay balls of 20 mm in diameter.
Drying process occurs as a result of forcing hot air vertically to pass through the wet porous bed, evaporation of moisture is existed in the bed due to the simultaneous heat and mass transfer. The studied operating parameters are inlet air temperature, inlet air mass flux, porous bed depth and porosity of balls. The average heat and mass transfer coefficients are estimated for flow of hot air through the wet porous bed.
The results indicated that, the drying rate is directly proportional to inlet air temperature, mass flux of air, dimensionless bed depth and ball porosity. So, Drying process can be achieved in lower time as increasing both air mass flux and or inlet air temperature and decreasing bed depth. Also, heat transfer coefficient and mass transfer coefficient increase with increasing inlet air temperature, inlet air mass flux, and ball porosity, but they decrease with increasing bed depth. Comparison between the obtained experimental results and the previous work gave the same trend.

DOI

10.21608/bfemu.2021.198876

Keywords

heat and mass transfer, Drying and Wet Porous Bed

Authors

First Name

Mohamed

Last Name

Wasel

MiddleName

Gamal Hassan

Affiliation

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

Email

-

City

Mansoura

Orcid

-

First Name

Hesham

Last Name

Mostafa

MiddleName

-

Affiliation

Mechanical Engineering Department., Higher Technological Institute., Tenth of Ramadan City., Egypt.

Email

drheshammostafa@yahoo.com

City

Tenth of Ramadan

Orcid

-

First Name

Gamal

Last Name

Sultan

MiddleName

Ibrahim Ahmed

Affiliation

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

Email

gisultan@mans.edu.eg

City

Mansoura

Orcid

-

First Name

A.

Last Name

Abd El-Badie

MiddleName

-

Affiliation

Research Student

Email

-

City

-

Orcid

-

Volume

31

Article Issue

4

Related Issue

19225

Issue Date

2006-12-01

Receive Date

2006-10-10

Publish Date

2021-10-10

Page Start

1

Page End

16

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 31_Issue 4_Pages 1-16.pdf

PDF . 1.6MB

Link

https://bfemu.journals.ekb.eg/article_198876.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=198876

Order

11

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

Study of Parameters Affecting Thermal Drying Process.

Details

Type

Article

Created At

22 Jan 2023