کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
765703 1462482 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Case studies on the effect of the air drying conditions on the convective drying of quinces
ترجمه فارسی عنوان
مطالعات موردی در مورد تأثیر شرایط خشک شدن هوا بر خشک شدن کنجکاوی کوکتها
کلمات کلیدی
خشک کن سازگار، قدم زدن، مدل سازی ریاضی، نفوذ پذیری موثر، انرژی فعال سازی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی


• An increase from 40 °C to 60 °C, at 2 ms−1 resulted to a decrease of the total time of drying of 54%.
• An increase from 1 ms−1 to 2 ms−1, at 60 °C resulted to a decrease of the total time of drying of about 30%.
• For the range of the conditions examined, Deff varied between 2.67×10−10 and 8.17×10−10 m2 s−1.
• The estimated values of Ea lie within 36.99 and 42.59 kJ mol−1.

The objective of the current study is to examine experimentally the thin-layer drying behavior of quince slices as a function of drying conditions. In a laboratory thermal convective dryer, experiments were conducted at air temperatures of 40, 50 and 60 °C and average air velocities of 1, 2 and 3 ms−1. Increasing temperature and velocity resulted to a decrease of the total time of drying. The experimental data in terms of moisture ratio were fitted with three state-of-the-art thin-layer drying models. In the ranges measured, the values of the effective moisture diffusivity (Deff) were obtained between 2.67×10−10 and 8.17×10−10 m2 s−1. The activation energy (Eα) varied between 36.99 and 42.59 kJ mol−1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Case Studies in Thermal Engineering - Volume 3, July 2014, Pages 79–85
نویسندگان
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