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A countercurrent tunnel dryer was used to dry the ape slices from an initial moisture content of 70% to 10% (wet basis). Hot air enters at 95 C with 1% RH, and exits at 60.0 C. If the product temperature at drying length is 20˚C and the specific heat of the product solids is 2.2 kJ / (kg ˚C), determine the rate of hot air required to dry the wet product at a rate of 240 kg / hour. determine the RH of the drying air outlet. a. drying air rate (ma) = kg / hr b. RH of dryer exhaust air = %

A countercurrent tunnel dryer was used to dry the ape slices from an initial moisture content of 70% to 10% (wet basis). Hot air enters at 95 C with 1% RH, and exits at 60.0 C. If the product temperature at drying length is 20˚C and the specific heat of the product solids is 2.2 kJ / (kg ˚C), determine the rate of hot air required to dry the wet product at a rate of 240 kg / hour. determine the RH of the drying air outlet. a. drying air rate (ma) = kg / hr b. RH of dryer exhaust air = %

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A countercurrent tunnel dryer was used to dry the ape slices from an initial moisture content of 70% to 10% (wet basis). Hot air enters at 95 C with 1% RH, and exits at 60.0 C. If the product temperature at drying length is 20˚C and the specific heat of the product solids is 2.2 kJ / (kg ˚C), determine the rate of hot air required to dry the wet product at a rate of 240 kg / hour. determine the RH of the drying air outlet.

a. drying air rate (ma) =       kg / hr


b. RH of dryer exhaust air =   %

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