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107172

PERFORMANCE EVALUATION OF A LABORATORY SCALE SPRAY DRYER

Article

Last updated: 04 Jan 2025

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Tags

Processing Engineering of Agricultural Products

Abstract

A laboratory scale-spray dryer performance was evaluated experimentally.  Powder yield, drying rate, feeding rate, drying time, evaporation rate and energy consumption were investigated under different inlet air temperatures and atomization speeds for drying some milk-juice blends and whole milk.  Theoretical approach of the dryer was developed, and energy inputs and outputs were estimated at the same experimental conditions.  The results showed that the powder yield decreased with increasing both inlet air temperature and atomization speed, on the other hand, drying rate and time, feeding rate, evaporation rate increased with increasing both air temperature and atomization speed.  Energy consumption decreased with increasing both air temperature and atomization speed, where, it ranged from 36.47 to 53.29 GJ/kg for the milk-juice blends depending on both atomization speed and drying temperature, while it ranged from 38.53 to 45.70 GJ/kg for the whole milk.  Dryer efficiency increased with increasing drying temperature and atomization speed.  It ranged from 42.09 to 71.03% depending on drying temperature and atomization speed. Theoretical approach showed that the estimated energy consumption was lower than the actual energy consumed, also, the estimated energy inputs were higher by 4.28 to 5.59% than the outputs of energy.

DOI

10.21608/mjae.2010.107172

Keywords

Spray dryer, performance, energy consumption, dryer efficiency, milk-juice blends, Temperature, Atomization, powder

Authors

First Name

A. H.

Last Name

Bahnasawy

MiddleName

-

Affiliation

Associate Professor of Agric. Eng. Moshtohor, Benha University, Egypt.

Email

bahnasawyadel@hotmail.com

City

-

Orcid

-

First Name

A. E.

Last Name

Okasha

MiddleName

-

Affiliation

Professor of Food Science and Technology, Fac. of Eng. and Technol. Sci., Sebha University, Libya.

Email

-

City

-

Orcid

-

First Name

E. E.

Last Name

Gonbeej

MiddleName

-

Affiliation

Graduate student of Food Science and Technology, Fac. of Eng. and Technol. Sci., Sebha University, Libya

Email

-

City

-

Orcid

-

Volume

27

Article Issue

1

Related Issue

16031

Issue Date

2010-01-01

Receive Date

2020-08-11

Publish Date

2010-01-01

Page Start

326

Page End

346

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 27_Issue 1_Pages 326-346.pdf

PDF . 617.3kB

Link

https://mjae.journals.ekb.eg/article_107172.html

Detail API

https://mjae.journals.ekb.eg/service?article_code=107172

Order

21

Type

Original Article

Type Code

1,326

Publication Type

Journal

Publication Title

Misr Journal of Agricultural Engineering

Publication Link

https://mjae.journals.ekb.eg/

MainTitle

PERFORMANCE EVALUATION OF A LABORATORY SCALE SPRAY DRYER

Details

Type

Article

Created At

23 Jan 2023