EJPAU 2005. Białobrzewski I. , Myhan R. , Cydzik R. EFFECTIVE WATER DIFFUSION COEFFICIENT IN FABA BEAN SEEDS DURING DRYING.PART I. DETERMINATION OF VALUES

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2005
Volume 8
Issue 2/volume8

Topic:

Agricultural Engineering

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Białobrzewski I. , Myhan R. , Cydzik R. 2005. EFFECTIVE WATER DIFFUSION COEFFICIENT IN FABA BEAN SEEDS DURING DRYING.PART I. DETERMINATION OF VALUES, EJPAU 8(2/volume8), #29.
Available Online: http://www.ejpau.media.pl/volume8/issue2/volume8/abs-29.html

EFFECTIVE WATER DIFFUSION COEFFICIENT IN FABA BEAN SEEDS DURING DRYING.PART I. DETERMINATION OF VALUES

Ireneusz Białobrzewski, Ryszard Myhan, Romuald Cydzik
Department of Agricultural Process Engineering, University of Warmia and Mazury in Olsztyn, Poland

ABSTRACT

The effective water diffusion coefficient was determined in faba bean seeds during drying. Faba bean seeds with an initial moisture content of 0.240 kg/kg were dried under natural convection conditions at 15, 20, 25, 30 and 35°C. The results obtained in the study show that in the process of convective drying of faba bean seeds the effective water diffusion coefficient is related to moisture content in a temperature range [15, 35]°C, and moisture content range. It was also found that the effective water diffusion coefficient is significantly affected by temperature in a range [15, 35]°C, but not in a range [20, 30]°C. The exponential form of the Arrhenius equation describes, with sufficient accuracy, the effective water diffusion coefficient in faba bean seeds during drying, as a function of material moisture content and temperature.

Key words: faba bean, drying, effective water diffusion coefficient, mathematical models.

Ireneusz Białobrzewski
Department of Agricultural Process Engineering,
University of Warmia and Mazury in Olsztyn, Poland
14 Heweliusza Street, 10-718 Olsztyn, Poland
email: irekb@uwm.edu.pl

Ryszard Myhan
Department of Agricultural Process Engineering,
University of Warmia and Mazury in Olsztyn, Poland
14 Heweliusza Street, 10-718 Olsztyn, Poland
email: ryszard.myhan@uwm.edu.pl

Romuald Cydzik
Department of Agricultural Process Engineering,
University of Warmia and Mazury in Olsztyn, Poland
14 Heweliusza Street, 10-718 Olsztyn, Poland

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