کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
649025 1457212 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mathematical modeling of drying characteristics of tropical fruits
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Mathematical modeling of drying characteristics of tropical fruits
چکیده انگلیسی

In this study, a heat pump dryer was designed and produced in which drying air temperature was controlled with PID. PID controlled heat pump dryer was experimentally tested in drying tropical fruits such as kiwi, avocado and banana. Drying air temperature was kept at 40 °C with the accuracy of ±0.2 °C. Drying air velocity changed between 0.03 m/s and 0.39 m/s. Initial moisture contents of the kiwi, avocado and banana were 4.31, 1.51 and 4.71 g water/g dry matter, which were dried to 0.75, 0.35 and 0.5 g water/g dry matter moisture contents in 6 h. Afterwards the moisture ratios were analyzed with “STATGRAPHIC” computer program by using semi-theoretical models and empirical values. Correlation and standard error of estimation (SEE) and R2 values were achieved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 27, Issues 11–12, August 2007, Pages 1931–1936
نویسندگان
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