Indirect-Passive Solar Dryer for Grapes
محل انتشار: سومین همایش ملی علوم و صنایع غذایی
سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 945
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شناسه ملی سند علمی:
GHOCHANFOOD03_191
تاریخ نمایه سازی: 15 بهمن 1393
چکیده مقاله:
Experiments for grapes drying using Indirect-Passive solar dryer were conducted at Tehran, Iran. Indirect-Passive solar dryer consisting of a solar air collector, a drying chamber in a series to supply hot air directly into the drying chamber using a dc fan and hiter. This drier has loading capacity of 10-12 kg of grapes. The design is based on energy balances and on an hourly-average radiation data reduction procedure for tilted surfaces. The analysis showed that the traditional drying, i.e. open sun drying, dried the grapes in 6-7 days, while the solar dryer took 2-4 days and produced better quality raisins. A major advantage this dryer is that loading and unloading is done cotemporaneous.
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نویسندگان
Ehsan Alizadeh
Department of Chemical Engineering , Islamic Azad University, Quchan Branch,Quchan, Iran
Omid Beiktash
Department of Chemical Engineering , Islamic Azad University, Quchan Branch,Quchan, Iran