RESEARCH OF THE TEMPERATURE FIELD PROFILES OF THE DRYING PROCESS OF PLANT RAW MATERIALS USING A SOLAR-WATER HEATING DRYING EQUIPMENT

Authors

  • Sh A Sultanova 1PhD, assistant professor, Head of department, Tashkent state technical university named after Islam Karimov, str. University 2, Tashkent, 100095 Uzbekistan, Author
  • J. E. Safarov DSc, professor, Dean of the Faculty of machine building, Tashkent state technical university named after Islam Karimov, str. University 2, Tashkent, 100095 Uzbekistan,j Author
  • B. M. Jumayev Researcher, Tashkent state technical university named after Islam Karimov, str. University 2, Tashkent, 100095 Uzbekistan Author
  • G. T. Dadayev PhD, Deputy Dean of the Faculty of machine building, Tashkent state technical university named after Islam Karimov, str. University 2 Author

DOI:

https://doi.org/10.61841/c484f188

Keywords:

drying, temperature, raw materials

Abstract

This research of the profiles of the temperature field of the process of convective drying of plant raw materials. Mathematical modeling of the temperature field on the basis of the three-phase flow structure was carried out. In a wide range of variation of design and operating parameters (from 50 to 150%) their nominal values are identified. A qualitatively new picture of the temperature field was found, which is expressed in the fact that, depending on the contact conditions of the gas and solid phases and the relative air flow, the temperature profile on the pallets can have both positive and negative slopes. The sensitivity of this relationship, formalized in the form of axonometric graphs and the corresponding families of isolines on the plane of variable factors, is shown. Criteria for non-uniformity of temperature profiles across pallets (dispersion of material temperature and angle of inclination of the approximating straight line with fixed values of the average temperature of the substance) are proposed. The procedure for solving the optimization problem on the conditions of the minimum criterion for the unevenness of the material profile is justified when the average temperature of the material specified in accordance with the conditions of the process schedule is restricted as equality

 

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References

1 Antonov, D. V., Kuznetsov, G. V., Strizhak, P. A. Determination of temperature and concentration of a vapor–gas mixture in a wake of water droplets moving through combustion products. J. Engin. Therm., 2016, vol. 25, No 3, pp. 337–351.

2. Zhang, L., Li, Z., Yang, N., Jiang, B., Pavlenko, A. N., Volodin, O. A. Hydrodynamics and mass-transfer characteristics analysis of vapor–liquid flow of dual-flow tray. J. Engin.Therm., 2016, vol. 25, No. 4, pp. 449–463.

3. Vysokomornaya, O. V., Piskunov, M. V., Kuznetsov, G. V., Strizhak, P. A. Mechanism of heat transfer in heterogeneous droplets of water under intense radiant heating. J. Engin.Therm., 2017, vol. 26, No. 2, pp. 183–196.

4. Laptev, A. G. and Lapteva, E. A. А model of heat and mass transfer in gas phase in axial and turbulent dispersed annular flows. J. Engin. Therm., 2018, vol. 27, No. 1, pp. 45–50.

5. Sukhotskii, А. B. and Маrshаlоvа, G. S. Intensified convection heat transfer of single-row bunch of finned tubes in an air stream: experimental study and generalization of the obtained data. Enеrgеtika. Proс. СIS Higher Educ. Inst. аnd Power Eng. Assoc., 2018, vol. 61, No 6, pр. 552–563.

6. Sychevsky, V. А., Chorny, А. D., Baranova, Т. А. Optimization of aerodynamic conditions of the chamber drier operation. Enеrgеtika. Proс. СIS Higher Educ. Inst. аnd Power Eng. Assoc., 2016, vol. 59, No 3, pр. 260–271.

7. Sun, Z. F. Numerical simulation of flow in an array of in-line blunt boards: mass trans- fer and flow patterns. Chem. Engin. Sci., 2001. vol. 56, No 3. pp. 1883–1896.

8. Khan, M. I. H, Mark, W. R., Szilvia, A. N, Joardder, M. U. H, Karim, M. A. Experimental investigation of bound and free water transport process during drying of hygroscopic food material. Inter. J. Ther. Sci., 2017, vol. 117, pp. 266-273.

9. Barati, E. and Esfahani, J. A. Mathematical simulation of convective drying: spatially distributed emperature and moisture in carrot slab. Int J Therm Sci., 2012, vol. 56, pp. 86-94.

10. Liu Chunshan, Sh. T., Yang, Sh., Wu, W., Chen, S. Experimental study and analysis on heat transfer effect of far infrared convection combined drying. 2017 International Conference on Smart Grid and Electrical Automation (ICSGEA). China.

11. Walters, R. H., Bhatnagar, B., Tchessalov, S., Izutsu, K.I., Tsumoto, K., Ohtake, S. Next generation drying technologies for pharmaceutical applications. J. Pharm. Sci. 2014, vol.103, No. 9, pp. 2673-2695.

12. Ndukwu, M. C., Dirioha, C., Abam, F. I., Ihediwa, V. E. Heat and mass transfer parameters in the drying of cocoyam slice. Case Studies in Ther.Engin., 2017, vol. 9, pp. 62-71.

13. Castro, A. M., Mayorga, E. Y., Moreno, F. L. Mathematical modelling of convective drying of feijoa (Acca sellowiana Berg) slices. J.Food Engin., 2019, vol. 252, pp. 44-52.

14. Santos, J. P. S., Santos, I. B., Pereira, E. M. A., Silva, J. V., Barbosa, De Lima A.G. Wheat convective drying: An analytical investigation via Galerkin-based integral method. Defect and Diffusion Forum., 2015, vol. 365, pp. 82-87.

15. Safarov, J. E., Sultanova, Sh. A., Dadayev, G. T., Samandarov, D. I. Method for the primary processing of silkworm cocoons (Bombyx mori).International Journal of Innovative Technology and Exploring Engineering. vol.9, Issue-1, 2019. pp.4562-4565.

16. Safarov, J. E, Sultanova, Sh. A., Dadaev, G. T. Development of helio of a drying equipment based on theoretical researches of heat energy accumulation. Enеrgеtika. Proс. СIS Higher Educ. Inst. аnd Power Eng. Assoc., 2020, vol. 63, No 2. pp.174-192.

17. Safarov, J. E., Sultanova, Sh. A., Dadayev, G. T., Samandarov, D. I. Method for drying fruits of rose hips. International Journal of Innovative Technology and Exploring Engineering. vol. 9, Issue-1, 2019. pp.37653768.

18. Khazimov, M. Zh., Khazimov, K. M., Urmashev, B. A., Tazhibayev, T. S., Sagyndykova Zh. B. Intensification of the plant products drying process by improving solar dryer design. J. Engin. Therm., 2018, vol. 27, No. 4, pp. 580–592.

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Published

31.10.2020

Issue

Vol. 24 No. 8 (2020): 24 (8) 2020

Section

Articles

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How to Cite

Sultanova, A. ., Safarov, J. E. ., Jumayev, B. M. . ., & Dadayev, G. T. . (2020). RESEARCH OF THE TEMPERATURE FIELD PROFILES OF THE DRYING PROCESS OF PLANT RAW MATERIALS USING A SOLAR-WATER HEATING DRYING EQUIPMENT. International Journal of Psychosocial Rehabilitation, 24(8), 1969-1977. https://doi.org/10.61841/c484f188