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95739

A Study on Thermal Energy Storage Using Open Adsorption System.

Article

Last updated: 22 Jan 2023

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Tags

Mechanical Power Engineering

Abstract

Theoretical and experimental investigation on the thermal energy storage of an open adsorption system is presented. Laboratory experiments have been conducted, using silica gel as adsorbent, to study the effect of flow rate and inlet relative humidity on the amount of energy stored. The theoretical model, used to describe the mass and energy transfers in the system, was solved using COMSOLTM software. The model was validated against laboratory experiments performed at varying conditions. Temperature and energy density profiles during the adsorption process have been analyzed for various conditions. Results show that the storage density increases with the increase of the flow rate. However, at higher flow rates lower discharge temperatures are obtained. So, an optimization is recommended before choosing the operating flow rate. Furthermore, results show that the higher the air inlet relative humidity, the higher the energy density and the higher the discharge temperature. The maximum energy density obtained for a bed volume of 5.09 10-4 m3 is 325.8 MJ/m3. For the predefined working conditions and assumptions, the numerical solution shows satisfied agreement with the experimental measurements.

DOI

10.21608/bfemu.2020.95739

Keywords

Adsorption, Thermal Energy Storage, Silica gel, Heat and mass transfer, COMSOL Multi-physics

Authors

First Name

Hesham

Last Name

Helaly

MiddleName

Omar

Affiliation

Instructor at the High Institute of Engineering and technology in new Damietta, Damietta, Egypt

Email

h_o_helaly@students.mans.edu.eg

City

-

Orcid

-

First Name

Mohamed

Last Name

Awad

MiddleName

Mahmoud

Affiliation

an Associate Professor at the Department of Mechanical Power Engineering, Mansoura University, Mansoura, Egypt

Email

m_m_awad@mans.edu.eg

City

-

Orcid

-

First Name

Ibrahim

Last Name

El-Sharkawy

MiddleName

Ibrahim

Affiliation

Prof. of Mechanical Power Engineering, Faculty of Engineering, Mansoura University, Egypt. Mansoura

Email

ielsharkawy@mans.edu.eg

City

-

Orcid

-

First Name

Ahmed

Last Name

Kandel

MiddleName

Mohamed Hamed

Affiliation

Mechanical Power Engineering Department, University of Mansoura, Egypt

Email

amhamed@mans.edu.eg

City

Mansoura

Orcid

-

Volume

43

Article Issue

3

Related Issue

14274

Issue Date

2018-09-01

Receive Date

2018-05-21

Publish Date

2020-06-14

Page Start

34

Page End

43

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 43_Issue 3_Pages 34-43.pdf

PDF . 513.7kB

Link

https://bfemu.journals.ekb.eg/article_95739.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=95739

Order

8

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023