bottle gourd drying

bottle gourd drying - Design parameters: length of tray = l...

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Design parameters: length of tray = l 1 m width of tray = w 0.44 m vertical distance between trays = b 6.5 cm 0.07 m No. of openings thr which ai enters = n1 13 No. of trays = n2 12 c/s area of exhaust air outlet = ad = 3.85E-03 m2 Operating parameters: initial wt = Wi 1.52 kg initial moisture = Xi 95 % (wb) 19 kg water/kg dry solid thickness = a 9 mm 0.01 m dry bulb temperature of ambient air = Ta 34 C wet bulb temperature of abmient air = Taw 28 C temperature of heated air at entrance =Tc 80 C vel of air at exhaust = vd 4 m/s avg vel over trays = vc = 1.5 m/s pressure of atmospheric air = Pa 101325 Pa Performance parameters: equilibrium moisture = Xe 6.1 % (wb) 0.06 kg water/kg dry solid temperature of mixed air = Tbm 65 C moisture content vs time moisture content =Xa = kg water/kg dry solid dry solids = 0.11 kg t (min) t (s) total wt wt of tray wt of veg. Xa D Rw 0 0 3.29 1.77 1.52 13.44 15 900 3.16 1.77 1.39 12.25 3.3401E-10 0 30 1800 2.99 1.77 1.22 10.63 1.1465E-09 0 45 2700 2.81 1.77 1.04
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This note was uploaded on 01/07/2011 for the course CHE 6906 taught by Professor - during the Spring '10 term at University of Florida.

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bottle gourd drying - Design parameters: length of tray = l...

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