Mathematical models to describe the volumetric shrinkage rate of red beans during drying

Engenharia Agrícola

Paulo C. Corrêa²  Osvaldo Resende¹  Silvia A. Garin¹  Carmen Jaren¹  Gabriel H. H. De Oliveira¹ 

[1] ,Universidade Federal de Viçosa Departamento de Engenharia Agrícola Viçosa MG

关键词: Phaseolus vulgaris L.;    moisture content;    volume;    air-drying;    physical property;    Phaseolus vulgaris L.;    teor de água;    volume;    secagem;    propriedades físicas;   

DOI  :  10.1590/S0100-69162011000400010

来源: SciELO

【 摘 要 】

The present study aimed to determine the volumetric shrinkage rate of bean (Phaseolus vulgaris L.) seeds during air-drying under different conditions of air, temperature and relative humidity, and to adjust several mathematical models to the empiric values observed, and select the one that best represents the phenomenon. Six mathematical models were adjusted to the experimental values to represent the phenomenon. It was determined the degree of adjustment of each model from the value of the coefficient of determination, the behavior of the distribution of the residuals, and the magnitude of the average relative and estimated errors. The rate of volumetric shrinkage that occurred in bean seeds during drying is between 25 and 37%. It basically depends on the final moisture content, regardless of the air conditions during drying. The Modified Bala & Woods' model best represented the process.

【 授权许可】

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