期刊
EXPERIMENTAL THERMAL AND FLUID SCIENCE
卷 35, 期 4, 页码 728-737出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.expthermflusci.2010.11.008
关键词
Microwave energy; Drying process; Multi-layered porous material; Specific energy consumption (SEC); Energy efficiency
资金
- Thailand Research Fund (TRF)
This work applies the first law of thermodynamics to estimate the ratio of energy utilization in microwave drying process using a rectangular waveguide. Two porous packed bed systems are considered such as attaching fine bed on coarse bed (F-C) and attaching coarse bed on fine bed (C-F). The effects of layered configuration and layered thickness on drying rate, power absorbed efficiency, specific energy consumption (SEC), and energy efficiency are studied in detail. The results show that the variations of all parameters have strongly affected on microwave penetration depth and power absorbed within the packed bed. Furthermore, F-C bed with equal layer thickness corresponds to great energy efficiency. (C) 2010 Elsevier Inc. All rights reserved.
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