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Heat Transfer Research
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ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018020385
pages 1353-1366

DRYING KINETICS OF HOT-AIR DRIED BEEF MEAT: APPLICATION OF MATHEMATICAL MODELS, ENERGY CONSUMPTION, AND COLOR CHARACTERISTICS

Osman Ismail
Department of Chemical Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Davutpasa Campus, 34210 Istanbul, Turkey
Ozlem Gökce Kocabay
Department of Chemical Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Davutpasa Campus, 34210 Istanbul, Turkey; T.R. Ministry of Culture and Tourism, Directorate of Central and Laboratory for Restoration and Conservation, Istanbul, Turkey

RÉSUMÉ

In this study, the effect of different drying conditions on the thermal and physical properties of beef meat samples was studied. The drying experiments were carried out at three different temperatures (40, 50, and 60°C) with a constant air flow rate of 1 m/s. Moisture transfer from beef meat samples was described by applying Fick's diffusion model. Effective moisture diffusivity of beef meat samples during experiments was achieved to be (4.56–11.98) × 10–10 m2/s. The activation energy of the samples was found as 42.93 kJ/mol. The results showed that the Alibas model had the best performance in predicting the moisture ratio. The highest and lowest values of energy consumption were calculated to be equal to 10.83 and 5.32 kWh, respectively. After drying, the total color difference increased. The changes in the sample surface color after drying were also measured, and the total color change ΔE of the samples at all temperatures and after each drying process was greater than 11.


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