کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6637945 | 461144 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave dielectric characterization of switchgrass for bioenergy and biofuel
ترجمه فارسی عنوان
مشخصات مایکروویو دی الکتریک سوئیچرز برای بیو انرژی و سوخت های زیستی
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
This study investigates the microwave dielectric properties of switchgrass at 915 and 2450 MHz under nitrogen (N2) environment, during the process of heating it to â¼700 °C. The heating process can be divided into three distinct stages, namely drying (from room temperature to â¼200 °C), pyrolysis (from â¼200 °C to â¼450 °C), and char region (from â¼450 °C to â¼700 °C). The dielectric properties decreased during the drying and pyrolysis stage, but increased dramatically in the char region, indicating the strong microwave absorption capability of the char. The maximum microwave penetration depth occurred at â¼392 °C, just at the high end of the pyrolysis zone. Dry biomass is a low loss material, but the microwave absorption improved significantly after the pyrolysis stage. The resulting char showed high microwave absorbing properties which can be used in many microwave absorbing applications. The experimental data were fitted using regression fit and based on this the dielectric properties model related to the temperature was developed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 124, 15 May 2014, Pages 151-157
Journal: Fuel - Volume 124, 15 May 2014, Pages 151-157
نویسندگان
F. Motasemi, Muhammad T. Afzal, Arshad Adam Salema, J. Mouris, R.M. Hutcheon,