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95035

Experimental Investigation on the Performance of Packed Tower for Regeneration of Liquid Desiccant.

Article

Last updated: 04 Jan 2025

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Subjects

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Tags

Mechanical Power Engineering

Abstract

In a liquid desiccant air conditioning system the regenerator is one of the essential components. The effectiveness of the regenerator directly influences the system performance. An experimental investigation on the performance of packed tower for regeneration of liquid desiccant is carried out. The experimental test unit has been designed and installed in the combustion Lab., Faculty of Engineering, Mansoura University, Egypt. A solution of calcium chloride is used as a working desiccant with a packing of burned clay pieces with a random shape, its porosity is about 0.22 and the average size and weight of the piece are about (90.25 cm3, 88.4 gram) respectively. The input variables used in the experiment are air inlet temperature, air flow rate and solution flow rate. The outlet parameters which are measured or calculated from the experimental results are air outlet temperature, air humidity ratio, desiccant solution outlet temperature and concentration. To illustrate the effect of air and liquid desiccant parameters on the outlet variables the experimental results are plotted. Based on these results, higher air inlet temperature (Tai = 60, 80, 100 and 120 °C) where the air inlet humidity ratio (0.0127, 0.0123, 0.0114 and 0.0130 kg/kgda) results in higher average air humidity ratio (0.0206, 0.0232, 0.0249 and 0.0334 kg/kgda) and the %age change of desiccant solution concentration (0.63, 1.13, 1.95 and 2.25 %) respectively. And higher air flow rate (Ma = 0.0252, 0.0529, 0.0659 and 0.0683 m3/s)  where the air inlet humidity ratio (0.0147, 0.0177, 0.0178 and 0.0184 kg/kgda) results in higher average air humidity ratio (0.0245, 0.0293, 0.0302 and 0.0312 kg/kgda) and the %age change of desiccant solution concentration (0.78, 2.21, 2.57 and 3.01 %) respectively. Increase in solution flow rate (Ms = 1, 2 and 3 LPM) where the air inlet humidity ratio (0.0175, 0.0151 and 0.0148 kg/kgda)  results in lower average air humidity ratio (0.0278, 0.0274 and 0.0267 kg/kgda) and the %age change of desiccant solution concentration (2.86, 2.58 and 2.23 %) respectively.

DOI

10.21608/bfemu.2020.95035

Keywords

Desiccant, Regenerator, Packed tower, calcium chloride, Packing of burned clay

Authors

First Name

Nader

Last Name

El-samahy

MiddleName

Mahmoud

Affiliation

Mechanical Power Eng. Dept., Faculty of Engineering, Mansoura University

Email

moontiroo@gmail.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Ahmed

MiddleName

Ramzi Abbas

Affiliation

Mechanical Power Engineering Department, University of Mansoura, Egypt

Email

ahmed_ara1979@mans.edu.eg

City

Mansoura

Orcid

-

First Name

Mostafa

Last Name

Awad

MiddleName

Mostafa

Affiliation

Mechanical Power Eng. Dept., Faculty of Engineering, Mansoura University

Email

mostawad100@yahoo.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Hamed

MiddleName

Mohamed

Affiliation

Mechanical Power Eng. Dept., Faculty of Engineering, Mansoura University

Email

amhamed1@yahoo.com

City

-

Orcid

-

Volume

44

Article Issue

1

Related Issue

14346

Issue Date

2019-03-01

Receive Date

2018-08-16

Publish Date

2020-06-11

Page Start

1

Page End

8

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 44_Issue 1_Pages 1-8.pdf

PDF . 836.6kB

Link

https://bfemu.journals.ekb.eg/article_95035.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=95035

Order

5

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

Experimental Investigation on the Performance of Packed Tower for Regeneration of Liquid Desiccant.

Details

Type

Article

Created At

22 Jan 2023