A New Approach for the Heat and Moisture Transfer in Desiccant Wheels Concerning Air Stream Velocity
| Autor: | Seyed Amir Hossein Zamzamian, Hassan Pahlavanzadeh, Mohammad Reza Omidkhah Nasrin |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Heat and Mass Transfer Research, Vol 9, Iss 2, Pp 197-208 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2345-508X 2383-3068 |
| DOI: | 10.22075/jhmtr.2023.28610.1395 |
| Popis: | Many investigators have presented mathematical work on desiccant wheels but there is a considerable discrepancy between published values and experimental values. A mathematical model based on the two-dimensional Navier-Stokes equation has been derived to show the dehumidification trend of desiccant dehumidifier concerning air stream velocity. In this model the effect of air stream velocity on wheel performance as a momentum equation combined with heat and mass transfer has been studied.The current model is capable of predicting the transient and steady-state transport in a desiccant wheel. It reveals the moisture and temperature in both the airflow channels and the sorbent felt, in detail, as a function of time. The predicted results are validated against the data taken from experimental results, with reasonable accuracy. Therefore, the numerical model is a practical tool for understanding and accounting for the complicated coupled operational process inside the wheel. Consequently, it is useful for parameter studies. |
| Databáze: | Directory of Open Access Journals |
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