TY - GEN
T1 - Simulation of adsorption process in a rotary solid desiccant wheel
AU - Norazam, Alia Sofia
AU - Kamar, Haslinda Mohamed
AU - Kamsah, Nazri
AU - Alhamid, Muhammad Idrus
PY - 2019/1/25
Y1 - 2019/1/25
N2 -
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.
AB -
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.
UR - http://www.scopus.com/inward/record.url?scp=85061125757&partnerID=8YFLogxK
U2 - 10.1063/1.5086559
DO - 10.1063/1.5086559
M3 - Conference contribution
AN - SCOPUS:85061125757
T3 - AIP Conference Proceedings
BT - 10th International Meeting of Advances in Thermofluids, IMAT 2018 - Smart City
A2 - Yatim, Ardiyansyah
A2 - Nasruddin, null
A2 - Budiyanto, Muhammad Arif
A2 - Aisyah, Nyayu
A2 - Alhamid, Muhamad Idrus
PB - American Institute of Physics Inc.
T2 - 10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018
Y2 - 16 November 2018 through 17 November 2018
ER -