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标题：Effects of microwave pretreatment on the energy and exergy utilization in thin-layer drying of sour pomegranate arils
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作者：Ali Motevali ; Saeid Minaei
期刊名称：Chemical Industry and Chemical Engineering Quarterly
印刷版ISSN：1451-9372
出版年度：2012
卷号：18
期号：1
页码：63-72
DOI：10.2298/CICEQ110702047M
出版社：Association of the Chemical Engineers
摘要：Energy and exergy analyses may be considered as important tools for design, analysis and optimization of thermal systems. This paper reports on energy and exergy analyses of thin-layer drying of sour pomegranate arils with microwave pretreatment. There were two microwave pretreatments (100W for 20 min and 200 W for 10 min) along with a control treatment (convection drying with no microwave pretreatment). Experiments were carried out at three air temperatures (50, 60 and 70ºC) and three air velocities (0.5, 1 and 1.5 m/s). Results showed that energy utilization and energy utilization ratio increased with time, while exergy efficiency decreased. Energy utilization and drying time decreased considerably with microwave pretreatment of pomegranate arils. The minimum values of exergy loss and exergy efficiency were associated with the 200W microwave pretreatment, while they were maximum for control treatment.
关键词：energy and exergy; microwave pretreatment; Thin Layer Drying; pomegranate