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Recovery of Water from Atmospheric Air in Taif Area, KSA Using Solar Energy.

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Last updated: 04 Jan 2025

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Tags

Mechanical Power Engineering

Abstract

In the present work, an investigation on the application of solar energy to heat a sandy bed impregnated with calcium chloride for recovery of water from atmospheric air, in the climatic  zone of Taif, has been presented. The study also aimed at evaluating the effects of different parameters on the productivity of the system during regeneration. These parameters include system design characteristics and the climatic conditions. An  experimental unit has been designed and installed for this purpose in climatic conditions of Taif area, Saudi Arabic. The experimental unit which has a surface area of 0.5m2 , comprises solar/desiccant collector unit containing sandy bed impregnated with calcium chloride. The sandy layer impregnated with desiccant is subjected to ambient atmosphere to absorb water vapor in the night. During the sunshine period, the layer is covered with glass surface. Ambient temperature, bed temperature and temperature of glass surface are recorded. Also, the productivity of the system has been evaluated. Desiccant concentration at start of regeneration is selected on the basis of the climatic data of Al-Hada region, which is located at Taif area, Saudi Arabia. Experimental measurements show that about1.0 liter per m2 of pure water can be regenerated from the desiccant bed at the climatic conditions of Taif. Liquid desiccant with initial concentration of 30% can be regenerated to a final concentration of about 44%. A maximum bed temperature of 112o C is recorded at 2 pm. Desiccant concentration at start of regeneration is selected on the basis of the climatic data of Al-Hada region. It is found that the climatic condition for Taif city almost dry compared with that for Al-Hada region. This method for extracting water from atmospheric air is more suitable for Al-Hada region especially in the fall and winter.

DOI

10.21608/bfemu.2020.122678

Keywords

Extraction, atmospheric air, Absorption, Liquid desiccant, solar energy, Regeneration

Authors

First Name

Ahmed

Last Name

Hamed

MiddleName

-

Affiliation

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

Email

amhamed1@yahoo.com

City

Mansoura

Orcid

-

First Name

ElShafei

Last Name

Zeidan

MiddleName

-

Affiliation

Mechanical Engineering Department., Faculty of Engineering., Taif University., Saudi Arab.

Email

ezeidan2002@yahoo.com

City

-

Orcid

-

First Name

Ayman

Last Name

Aly

MiddleName

-

Affiliation

Mechanical Engineering Department., Faculty of Engineering., Assiut University.

Email

ayman_aly@yahoo.com

City

Assiut

Orcid

-

Volume

36

Article Issue

1

Related Issue

17855

Issue Date

2011-03-01

Receive Date

2020-11-11

Publish Date

2020-11-11

Page Start

1

Page End

14

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 36_Issue 1_Pages 1-14.pdf

PDF . 253.7kB

Link

https://bfemu.journals.ekb.eg/article_122678.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=122678

Order

7

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

Recovery of Water from Atmospheric Air in Taif Area, KSA Using Solar Energy.

Details

Type

Article

Created At

22 Jan 2023