Simulation of adsorption process in a rotary solid desiccant wheel

Alia Sofia Norazam, Haslinda Mohamed Kamar, Nazri Kamsah, Muhammad Idrus Alhamid

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Solid desiccant air dehumidifier system is widely being used to supply dry air for many industrial processes. As humid atmospheric air flows through the system, the water vapor in the air is adsorbed by the desiccant material, resulting in dry air leaving the system. The performance of the system is usually determined through experimental work. However, this practice is often complex to carry as it requires precise measuring instruments, time consuming and it can be labor intensive too. A numerical solution has become a preferred choice to determine the performance of the system. The goal of this work is to determine the moisture removal capacity (MRC), thermal effectiveness (ϵ th ) and dehumidification effectiveness (ϵ DW ) of a solid desiccant wheel of an air dehumidifier system by a validated numerical method. A representative two-dimensional model of the air channel was developed and meshed using triangular elements. Flow simulations were carried out under a transient condition. The numerical model was validated by comparing the simulation results at the outlet of the air channel with similar results of experimental data obtained from the literature. The relative errors were found to be about 1.05% for air temperature and 8% for air humidity, indicating that the numerical model has a good capability of estimating the desiccant material performance. It was also found that the MRC, ϵ DW and ϵ th are about 22 g/s, 76% and 43% respectively.

Original languageEnglish
Title of host publication10th International Meeting of Advances in Thermofluids, IMAT 2018 - Smart City
Subtitle of host publicationAdvances in Thermofluid Technology in Tropical Urban Development
EditorsArdiyansyah Yatim, Nasruddin, Muhammad Arif Budiyanto, Nyayu Aisyah, Muhamad Idrus Alhamid
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417908
DOIs
Publication statusPublished - 25 Jan 2019
Event10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018 - Kuta, Bali, Indonesia
Duration: 16 Nov 201817 Nov 2018

Publication series

NameAIP Conference Proceedings
Volume2062
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018
Country/TerritoryIndonesia
CityKuta, Bali
Period16/11/1817/11/18

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