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A Study of Liquid Desiccant System Performance

Desiccant systems have been proposed as energy saving alternatives to vapor compression air conditioning for handling the latent load. Desiccants are classified as either liquid or solid. The main components for a liquid desiccant system are the dehumidification and regeneration towers. Use of li...

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Main Authors: Salarian, Hesamoddin, Taherian, Hessam, Ghadamian, Hosain, Khalaji Assadi, Morteza
Format: Article
Published: 2009
Online Access:http://eprints.utp.edu.my/11885/1/24A%20Study%20of%20Liquid%20Desiccant%20System%20Performance.pdf
http://eprints.utp.edu.my/11885/
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spelling my.utp.eprints.118852016-10-07T01:42:51Z A Study of Liquid Desiccant System Performance Salarian, Hesamoddin Taherian, Hessam Ghadamian, Hosain Khalaji Assadi, Morteza Desiccant systems have been proposed as energy saving alternatives to vapor compression air conditioning for handling the latent load. Desiccants are classified as either liquid or solid. The main components for a liquid desiccant system are the dehumidification and regeneration towers. Use of liquid desiccant offers several design and performance advantages over solid desiccant, especially when solar energy is used for regeneration. For liquid-gas contact, packed towers with low pressure drop provide good heat and mass transfer characteristics for compact designs. This paper presents the results from a study of the performance of a packed tower absorber for lithium chloride desiccant dehumidification system. A finite difference model was developed to determine the packing height of the dehumidification towers. The finite difference model was written in MATLAB language which is a suitable model to measure the optimum height of a tower. The paper also examines the effects of different design parameters on the height of a packed tower using a mathematical model. The effects of air and liquid flow rates, air humidity, desiccant temperature and concentration were reported on the packing height and humidity effectiveness of the column. In conclusion the results of the present study are compared with previous experimental studies. 2009 Article PeerReviewed application/pdf http://eprints.utp.edu.my/11885/1/24A%20Study%20of%20Liquid%20Desiccant%20System%20Performance.pdf Salarian, Hesamoddin and Taherian, Hessam and Ghadamian, Hosain and Khalaji Assadi, Morteza (2009) A Study of Liquid Desiccant System Performance. 6TII International Symposium on Heating, Ventilating and Air Conditioning, ISHVAC09, I-III Proceedings, 2009, Pages: 565-572 . pp. 565-572. http://eprints.utp.edu.my/11885/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Desiccant systems have been proposed as energy saving alternatives to vapor compression air conditioning for handling the latent load. Desiccants are classified as either liquid or solid. The main components for a liquid desiccant system are the dehumidification and regeneration towers. Use of liquid desiccant offers several design and performance advantages over solid desiccant, especially when solar energy is used for regeneration. For liquid-gas contact, packed towers with low pressure drop provide good heat and mass transfer characteristics for compact designs. This paper presents the results from a study of the performance of a packed tower absorber for lithium chloride desiccant dehumidification system. A finite difference model was developed to determine the packing height of the dehumidification towers. The finite difference model was written in MATLAB language which is a suitable model to measure the optimum height of a tower. The paper also examines the effects of different design parameters on the height of a packed tower using a mathematical model. The effects of air and liquid flow rates, air humidity, desiccant temperature and concentration were reported on the packing height and humidity effectiveness of the column. In conclusion the results of the present study are compared with previous experimental studies.
format Article
author Salarian, Hesamoddin
Taherian, Hessam
Ghadamian, Hosain
Khalaji Assadi, Morteza
spellingShingle Salarian, Hesamoddin
Taherian, Hessam
Ghadamian, Hosain
Khalaji Assadi, Morteza
A Study of Liquid Desiccant System Performance
author_facet Salarian, Hesamoddin
Taherian, Hessam
Ghadamian, Hosain
Khalaji Assadi, Morteza
author_sort Salarian, Hesamoddin
title A Study of Liquid Desiccant System Performance
title_short A Study of Liquid Desiccant System Performance
title_full A Study of Liquid Desiccant System Performance
title_fullStr A Study of Liquid Desiccant System Performance
title_full_unstemmed A Study of Liquid Desiccant System Performance
title_sort study of liquid desiccant system performance
publishDate 2009
url http://eprints.utp.edu.my/11885/1/24A%20Study%20of%20Liquid%20Desiccant%20System%20Performance.pdf
http://eprints.utp.edu.my/11885/
_version_ 1738655987172114432
score 13.211869

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