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 (εth) and dehumidification effectiveness (εDW) 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, εDW and εth are about 22 g/s, 76% and 43% respectively.
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25 January 2019
THE 10TH INTERNATIONAL MEETING OF ADVANCES IN THERMOFLUIDS (IMAT 2018): Smart City: Advances in Thermofluid Technology in Tropical Urban Development
16–17 November 2018
Bali, Indonesia
Research Article|
January 25 2019
Simulation of adsorption process in a rotary solid desiccant wheel
Alia Sofia Norazam;
Alia Sofia Norazam
a)
1
Faculty of Mechanical Engineering, Universiti Teknologi Malaysia
, 81310 UTM Skudai, Johor, Malaysia
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Haslinda Mohamed Kamar;
Haslinda Mohamed Kamar
b)
2
Faculty of Mechanical Engineering, Universiti Teknologi Malaysia
, 81310 UTM Skudai, Johor, Malaysia
b)Corresponding author: haslinda@mail.fkm.utm.my
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Nazri Kamsah;
Nazri Kamsah
c)
3
Faculty of Mechanical Engineering, Universiti Teknologi Malaysia
, 81310 UTM Skudai, Johor, Malaysia
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M. Idrus Alhamid
M. Idrus Alhamid
d)
4
Departemen Teknik Mesin, Fakultas Teknik, Universitas Indonesia
, Kampus Baru – UI, Depok 16424, Indonesia
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b)Corresponding author: haslinda@mail.fkm.utm.my
AIP Conf. Proc. 2062, 020012 (2019)
Citation
Alia Sofia Norazam, Haslinda Mohamed Kamar, Nazri Kamsah, M. Idrus Alhamid; Simulation of adsorption process in a rotary solid desiccant wheel. AIP Conf. Proc. 25 January 2019; 2062 (1): 020012. https://doi.org/10.1063/1.5086559
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