TY  - JOUR
AU  - Triratanasirichai, Kittichai 
AU  - Dongbang, Watcharin 
AU  - Pirompugd, Worachest 
PY  - 2011
TI  - Mathematical Modeling of Drying Characteristics of Chilies in a Rotating Fluidized Bed Technique
JF  - American Journal of Applied Sciences
VL  - 8
IS  - 10
DO  - 10.3844/ajassp.2011.979.983
UR  - https://thescipub.com/abstract/ajassp.2011.979.983
AB  - Problem statements: The present study investigates experimentally the thin layer drying of chilies in the Rotating Fluidized Bed (RFB) technique and its mathematical modeling. Approach: The layer’s height was fixed at 4±0.5 cm. In addition, the drying air velocity and the centrifugal acceleration ratio were fixed at 2 m sec-1 and G = 2.5 (106 rpm), respectively. With 6 data sets for drying air temperature between 70 and 120°C, the samples were dried from 350±5%db down to 10±1%db. Results: The drying time was in the range of 69-257 min. The chilies from sunlight appear light red. On the other hand, from the RFB, they appear dark red but can be marketable. Conclusion: The comparisons of five outstanding models are predicted. The Modified Page model gives good agreement with prediction of change in moisture ratio.