Influence of motion parameters of the drying agent on kinetics of mixed heat transfer drying

Authors

  • Микола Іванович Погожих Kharkiv State University of Food Technology and Trade Klochkivska str., 333, Kharkiv, Ukraine, 61051, Ukraine https://orcid.org/0000-0002-0835-4896
  • Андрій Олегович Пак Kharkiv State University of Food Technology and Trade Klochkivska str., 333, Kharkiv, Ukraine, 61051, Ukraine https://orcid.org/0000-0003-3140-3657
  • Аліна Володимирівна Пак Kharkiv Institute of Trade and Economics of Kyiv National University of Trade and Economics Otakara Yarosha str., 8, Kharkiv, Ukraine, 61051, Ukraine https://orcid.org/0000-0002-0311-9731
  • Максим Васильович Жеребкін Kharkiv State University of Food Technology and Trade Klochkivska str., 333, Kharkiv, Ukraine, 61051, Ukraine https://orcid.org/0000-0001-8365-0495

DOI:

https://doi.org/10.15587/1729-4061.2014.23715

Keywords:

mixed heat transfer drying, functional capacity, temperature kinetics, turbulent disturbances, blowing

Abstract

The paper deals with studying the influence of motion parameters of the drying agent on the kinetics of mixed heat transfer drying for obtaining the requirements to functional features of turbulators, used in drying by this method.

It was noted that one of the promising drying methods in terms of increasing the dehydration intensity, reducing specific energy consumption per unit of dried products and preserving the feedstock quality is mixed heat transfer drying.

Installation for studying the influence of motion parameters of the drying agent on the temperature kinetics and the moisture content kinetics of feedstock during MHT-drying was designed and built. Based on studies of temperature kinetics and moisture content kinetics of feedstock at different angles of blowing of mass transfer gaps by drying agent from the range 0°–90° it was found that the temperature kinetics of feedstock at the investigated blowing angles are of nature, typical for the MHT-process. It was determined that the dehydration duration is the longest for blowing angles 25°–35°, time the thermogram achieves local minimum and, respectively, maximum of drying speed for this range is the latest. It was found that at increasing and decreasing the blowing angle with respect to this range, drying duration reduces and maximum dehydration speed is reached earlier. It is noted that inserts-turbulators, which are structural features of MHTdryers, must provide blowing of FC mass transfer gaps by drying agent at angles, close to rational, which are the angles 0° and 60°.

Author Biographies

Микола Іванович Погожих, Kharkiv State University of Food Technology and Trade Klochkivska str., 333, Kharkiv, Ukraine, 61051

Doctor of Technical Sciences, professor, head of department

Department of Energetic and Physic

Андрій Олегович Пак, Kharkiv State University of Food Technology and Trade Klochkivska str., 333, Kharkiv, Ukraine, 61051

Candidate of Technical Sciences, associate professor

Department of Energetic and Physic

Аліна Володимирівна Пак, Kharkiv Institute of Trade and Economics of Kyiv National University of Trade and Economics Otakara Yarosha str., 8, Kharkiv, Ukraine, 61051

Candidate of Technical Sciences, associate professor

Department of merchandising and examining the quality of goods

Максим Васильович Жеребкін, Kharkiv State University of Food Technology and Trade Klochkivska str., 333, Kharkiv, Ukraine, 61051

Candidate of Technical Sciences, assistant

Department of trade and refrigeration equipment

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Published

2014-04-25

How to Cite

Погожих, М. І., Пак, А. О., Пак, А. В., & Жеребкін, М. В. (2014). Influence of motion parameters of the drying agent on kinetics of mixed heat transfer drying. Eastern-European Journal of Enterprise Technologies, 2(12(68), 4–8. https://doi.org/10.15587/1729-4061.2014.23715

Issue

Vol. 2 No. 12(68) (2014): Technology and Equipment of Food Production

Section

Technology and Equipment of Food Production

License

Copyright (c) 2014 Микола Іванович Погожих, Андрій Олегович Пак, Аліна Володимирівна Пак, Максим Васильович Жеребкін

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