A New Approach for the Heat and Moisture Transfer in Desiccant Wheels Concerning Air Stream Velocity | ||
| Journal of Heat and Mass Transfer Research | ||
| مقاله 9، دوره 9، شماره 2 - شماره پیاپی 18، بهمن 2022، صفحه 197-208 اصل مقاله (722 K) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2023.28610.1395 | ||
| نویسندگان | ||
| Seyed Amir Hossein Zamzamian* 1؛ Hassan Pahlavanzadeh2؛ Mohammad Reza Omidkhah Nasrin2 | ||
| 1Energy Department, Materials and Energy Research Center (MERC), Karaj, Iran | ||
| 2Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran | ||
| چکیده | ||
| 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. | ||
| کلیدواژه‌ها | ||
| Desiccant wheel؛ Heat transfer؛ Mathematical model؛ Mass transfer؛ Explicit program | ||
| مراجع | ||
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