Vol.8, No 1, 2010 pp. 89 - 96
UDC 66.047 536.24

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EXPERIMENTAL STUDY ON DRYING KINETIC AND ENERGETIC CHARACTERISTICS OF CONVECTION PNEUMATIC DRYER
Dragiša Tolmač¹, Zvonimir Blagojević² , Slavica Prvulović³, Jasna Tolmač⁴, Ljiljana Radovanović^1
1University of Novi Sad, Technical faculty "Mihajlo Pupin", Zrenjanin, Serbia.
²JP. Toplifikacija, Požarevac, Serbia.
³University of Belgrade, Technical faculty, Bor, Serbia.
⁴University of Novi Sad, Faculty of Sciences, Department of physics, Serbia
E-mail: dtolmac@sbb.rs

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The aim of this study is to present a part of the experimental and theoretical research of an industrial pneumatic dryer, in order to determine its energetic characteristics, heat transfer coefficient, as well as the drying kinetics curves. Heat transfer is accomplished through convection thanks to the principle of drying based on direct contact between the heated air and the moist material. During that process, intensive heat and mass exchange take place. Based on the results of the research, the models of drying and energetic characteristics are provided.
Key words: Models of Drying, Energetic Characteristics, Pneumatic Dryer

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EKSPERIMENTALNA STUDIJA KINETIKE SUŠENJA I ENERGETSKIH KARAKTERISTIKA KONVEKTIVNE PNEUMATSKE SUŠARE U ovom radu prikazan je deo eksperimentalnih i teorijskih istraživanja na industrijskom postrojenju pneumatske sušare, u cilju određivanja energetskih karakteristika, koeficijenta prenosa toplote kao i krivih kinetike sušenja. Prenos toplote ostvaruje se konvekcijom, zahvaljujući principu sušenja na bazi direktnog kontakta zagrejanog vazduha i vlažnog materijala. Pri tome se ostvaruje intenzivna razmena toplote i mase. Na osnovu rezultata istraživanja dati su modeli sušenja, kao i energetske karakteristike.
Ključne reči: modeli sušenja, energetske karakteristike, pneumatska sušara