Predicting drying behavior of spaghetti in a continuous industrial dryer with the models determined in a lab scale batch system

Date

1997-08-01

Author

Kucuk, R
Ozilgen, M

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In the first stage of this study experimental data were obtained by using a lab scale batch type dryer, operating under various constant temperature/constant relative humidity combinations; then a mathematical model was determined for the effective diffusivity of moisture in spaghetti. In the second stage of the study the model obtained in the lab scale batch type dryer was used to calculate the moisture content of the spaghetti leaving continuous industrial scale dryer, and its success was tested by comparing with the experimentally determined moisture content of the product. The model was not found successful and corrected. Mathematical models based on experimental data obtained in a bench-top laboratory dryer underestimated the apparent equilibrium moisture content and over estimated the effective diffusivity of water in spaghetti in industrial scale continuous drying equipment. The structural differences in the product, extrapolation of the data beyond the range of the original experiments, variations in mode (batch versus continuous), surface-to-volume ratios, flow patterns, and geometry associated with each drying system were anticipated as the cause of the scale up problem.

Subject Keywords

Food Science, General Chemistry, General Chemical Engineering

URI

https://hdl.handle.net/11511/66071

Journal

JOURNAL OF FOOD PROCESSING AND PRESERVATION

DOI

https://doi.org/10.1111/j.1745-4549.1997.tb00779.x

Collections

Department of Food Engineering, Article

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Citation Formats

R. Kucuk and M. Ozilgen, “Predicting drying behavior of spaghetti in a continuous industrial dryer with the models determined in a lab scale batch system,” JOURNAL OF FOOD PROCESSING AND PRESERVATION, pp. 245–256, 1997, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66071.