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Información tecnológica

On-line version ISSN 0718-0764

Abstract

SIERRA, Mauricio J  and  PEREZ, Omar A. Evaluation and Optimization of Hybrid Dryer of Cassava. Inf. tecnol. [online]. 2016, vol.27, n.2, pp.77-86. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642016000200010.

The objective of this research was to establish the optimal values of mass loading, temperature and air velocity for the drying of cassava, in a hybrid dryer, to reduce its moisture content to 13% wet basis. For the evaluation of the hybrid dryer, drying experimental runs were carried out at temperatures between 50 and 70 °C, air velocity between 1 and 8 m/s and mass loading of 30 to 80 kg/m2. The optimization criterion was the maximization of the overall efficiency of drying based on the phenomenological study of the process. Through the results, the feasible regions were delimited: for temperatures between 50 and 55 ° C, air velocity of 1.5 to 1.9 m/s and mass load between 47 and 67 kg/m2. The maximum overall drying efficiency obtained was 65.6%, for temperature, air velocity and mass loading of 50 ° C, 1.66 m/s and 55.40 kg/m2 respectively, employing an operating time of 5.5 hours.

Keywords : drying optimization; overall efficiency; drying; cassava; optimum operating variables.

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