Acta Scientiarum Polonorum

Scientific paper founded in 2001 year by Polish agricultural universities

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Administratio Locorum
(Gospodarka Przestrzenna) 1 (1) 2002     ISSN: 1644-0741
Title
VERIFICATION OF MATHEMATICAL MODEL OF THE FIRST CONVECTION PERIOD IN APPLE DRYING WITH REGARD TO DEHYDRATION SHRINKAGE
Autor
Roland Zawiślak, Helena Lisowa, Renata Bochyńska
Keywords
apples, drying, forced convection, mathematical model
Abstract
The mathematical model of the first drying period with regard to dehydration shrinkage was verified in the water (moisture) content interval from u0 = 5,50 kg H2O·kg-1 of dry matter to u=3,14 kg H2O·kg-1 of dry matter, that is, in the range of relative humidity of 85–76%, with the error not exceeding 2,4%. Moisture (water) content measurements were carried out during the drying process, as well as of the changes in apple ring (slice) volume. The apple rings were dried at the temperature of 55°C, at the air flow velocity of 0,5 m·s-1.
Pages
31-39
Cite
Zawiślak, R., Lisowa, H., Bochyńska, R. (2002). VERIFICATION OF MATHEMATICAL MODEL OF THE FIRST CONVECTION PERIOD IN APPLE DRYING WITH REGARD TO DEHYDRATION SHRINKAGE. Acta Sci. Pol. Technica Agraria, 1(1), 31-39.
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