کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8055100 | 1519511 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mathematical analysis of compound release during microwave assisted retting of flax stems
ترجمه فارسی عنوان
تجزیه و تحلیل ریاضی انتشار ترکیب در طی ریزش مایکروویو ساقه های کتان
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کلمات کلیدی
رطوبت با کمک مایکروویو، فیبر طبیعی، مدل ریاضی، پردازش فیبر،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
چکیده انگلیسی
Microwave-assisted retting was conducted at various power levels (1, 1.5 and 2Â WÂ gâ1) on pre-soaked flax stems (12, 24 and 36Â h). The retted flax stems were dried and the fibres were separated. The amount of cellulose, hemicellulose and lignin presented in the flax fibres was established by NIR (near infrared) spectroscopy. Based on the rate of change of cellulose, hemicellulose and lignin at various levels of treatments, a kinetic model was developed and the model was validated by analysing the compositions of hemp fibres obtained from pre-soaked hemp stems at various microwave power levels. The rate of change of cellulose percentage in the model fitted with the observed values of cellulose percentage with an average R2 value of 0.87 and an average RMSE (root-mean-square error) value of 0.0130. But in hemicellulose, the R2 value was 0.936 and average RMSE value was 0.0135, and for lignin, R2 value was 0.92 and RMSE value of 0.0181. The rate coefficient for all the treatments was increasing within the treatment limit, which indicated the increased reaction rate with an increase in microwave power. Validation of the model was successfully conducted by analysing the components of hemp fibres at various levels of microwave powers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosystems Engineering - Volume 150, October 2016, Pages 214-221
Journal: Biosystems Engineering - Volume 150, October 2016, Pages 214-221
نویسندگان
Gopu R. Nair, Ashutosh Singh, Jiby Kurian, G.S. Vijaya Raghavan,