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278935

Some engineering factors affecting referactance window drying of guava

Article

Last updated: 05 Jan 2025

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Subjects

-

Tags

Agricultural products Process Engineering.

Abstract

In the present work drying kinetics of Guava of initial moisture content 88 ±1 % w.b. using Refractance Window (RW) dryer as affected by three different levels of water basin temperature, namely: 80, 85 and 90 ±1°C and three different puree thickness of approximately 1,2 and 3mm as a parameter. The indicators that used to evaluate this system such as rehydration ratio, color as quality indicators, productivity(kg/h), drying efficiency and costs. The main results showed that drying time was affected by water basin temperatures and puree thickness significantly, the drying time decreases with water basin temperature increases and puree thickness decreases. The puree temperature affected by drying elapsed time and the rehydration ratios increased as water basin temperature decreases. The RW drying method had significant impact on color quality of dried samples. Increasing puree thicknesses, productivity decreases due to its dependence on drying time. The drying efficiencies were ranged from 28 to 65%. Moderate values of drying costs were recorded at 85°C and 2mm thickness.

DOI

10.21608/azeng.2022.278935

Keywords

Referactance Window drying, Guava drying, drying temperature

Authors

First Name

A. H.

Last Name

Ramadan

MiddleName

-

Affiliation

Department of Agricultural Products Process Engineering, Faculty of Agricultural Engineering, Al-Azhar University, Cairo, Egypt.

Email

ahmedhussein.el.8.1303@azhar.edu.eg

City

-

Orcid

-

First Name

T. H.

Last Name

Ghanem

MiddleName

-

Affiliation

Department of Agricultural Products Process Engineering, Faculty of Agricultural Engineering, Al-Azhar University, Cairo, Egypt.

Email

-

City

-

Orcid

-

First Name

A. S.

Last Name

Eissa

MiddleName

-

Affiliation

Department of Agricultural Products Process Engineering, Faculty of Agricultural Engineering, Al-Azhar University, Cairo, Egypt.

Email

-

City

-

Orcid

-

Volume

4

Article Issue

1

Related Issue

38763

Issue Date

2023-01-01

Receive Date

2022-09-09

Publish Date

2023-01-01

Page Start

10

Page End

20

Print ISSN

2805-2765

Online ISSN

2805-2803

Article File

AZENG_Volume 4_Issue 1_Pages 10-20.pdf

PDF . 1.1MB

Link

https://azeng.journals.ekb.eg/article_278935.html

Detail API

https://azeng.journals.ekb.eg/service?article_code=278935

Order

2

Type

Original Article

Type Code

2,115

Publication Type

Journal

Publication Title

Al-Azhar Journal of Agricultural Engineering

Publication Link

https://azeng.journals.ekb.eg/

MainTitle

Some engineering factors affecting referactance window drying of guava

Details

Type

Article

Created At

23 Jan 2023