EXPERIMENTAL STUDY OF DRYING YACON TUBERS

Authors

U K. Khujakulov, Tashkent State Technical University named after Islam Karimov, 100095, Tashkent, UzbekistanFollow
Sh A. Sultanova, Tashkent State Technical University named after Islam Karimov, 100095, Tashkent, UzbekistanFollow
J E. Safarov, Tashkent State Technical University named after Islam Karimov, 100095, Tashkent, UzbekistanFollow

Abstract

This study discusses the method and experimental drying unit for drying yacon tubers at different temperatures. And also the scheme of experimental drying unit is given, which controls temperature, speed of warm air and shows the mass of dried material. The cross-sectional area of the flow in the tunnel is 20×20 cm, the thermal air passed horizontally through a chute with holes and a surface area of 12×12 cm. The exhaust gas did not circulate in this experiment. The accuracy of the temperature control system was 0.1 °C, the weight control system 0.1 g. The variation of moisture ratio depending on the drying time of yacon took place at temperatures of warm air of 65, 70, 75, 80 and 85 °C, cut to a thickness of 4 mm and air speed of 1.05 m/s. The air temperature was controlled by a proportional controller. The variation of the drying speed as a function of moisture content is shown in Fig.2-7. The curves show that the drying rate decreases continuously with increasing time.

First Page

257

Last Page

262

DOI

https://doi.org/10.51346/tstu-01.21.2-77-0125

References

1. Kononkov P.F., Gins M.S., Gins V.K., Sidorova N.V., Chekmarev P.A., Mel'nik L.S. Introduktsiya yakona v Rossii: nauch. izdaniye. - M.: FGNU «Rosinformagrotekh», 2011. -140 s.
2. Safarov J.E., Sultanova Sh.A., Khujakulov U.K., Samandarov D.I. Studies drying process products. // International Journal of Advanced Science and Technology. Vol.29, №9s. 2020. pp.5823-5828.
3. Khuzhakulov U.K. Study of the drying process of yacon tubers. International conference "Innovative ways of solving urgent problems of the development of the food and petrochemical industry." Bukhara, 2020. Volume №1. –S.214-216.
4. Thorvaldsson K., Janestad H. A model for simulteneous heat, water and vapour diffusion. Journal of Food Engineering, 40:167–172, 1999.
5. Chagin O.V., Kokina N.R., Pastin V.V. Oborudovaniye dlya sushki pishchevykh produktov. Ivanovo, Ivan. khim. - tekhnol. un-t. 2007. -138 s.
6. Luikov A.V. System of differential equations of heat and mass transfer in capillary-porous bodies (review). International Journal of Heat and Mass Transfer, 18:1–14, 1975.
7. Veli`c D., Planini`c M., Tomas S., Bili`c S. Influance of air velocity on kinetics of convection of apple drying. Journal of Food Engineering, 64:97–102, 2004.
8. https://link.springer.com/article/10.1007/s00231-018-2334-2
9. Nikitina L.M. Termodinamicheskiye parametry i koeffitsiyenty massoperenosa vo vlazhnykh materialakh. −M.: Energiya, 1968. −499 s.
10. Khujakulov U.K. Kinetic dependences of the drying process. International scientific and technical journal «Innovation technical and technology». Vol.1, №.1. 2020. рр.15-21.
11. Sunil Verma, Khujakulov U.K., Dadayev G.T., Safarov J.E. Studying the kinetics of drying. International conference «Innovative ways of solving urgent problems of development of the food and petrochemical industry». Bukhara, 2020. Vol.1. –S.99-102.
12. Raxmanova T, Sultanova Sh.A., Safarov J.E., Capanoglu E Investigation of the moisture binding forms in plant raw materials and thermal characteristics determination Technical science and innovation: Vol. 2020 : Iss. 4, Article 1.
13. Samandarov D.I., Safarov J.E. Kinetiki sushki i effektivnost' diffuzii vlagi i yeye vliyaniya na udel'noye energopotrebleniye. Mezhdunarodnaya nauchno-prakticheskaya konferentsiya “Sovremennyye problemy innovatsionnogo razvitiya nauki, obrazovaniya i proizvodstva”. Andizhan, 2020. -S.67-72.
14. Ceylan I., Aktas M., Dogan A. Mathematical modelling of drying characteristics of fruits. Applied Thermal Engineering, 27:1931–1936, 2007.
15. Khujakulov U.K., Safarov J.E. Research yakon tubers (Polymnia sonchifolia) as the object of study. // International journal of advanced research in science, engineering and technology. –India, 2019. Vol. 6, Issue 12, р.12114-12118.
16. Khujakulov U.K. Obtaining biologically active substances in order to use them as antioxidant preparations from yacon. International scientific and practical conference "Problems and prospects of innovative machinery and technologies in the agri-food sector". Tashkent, 2020. –р.486-487.

Recommended Citation

Khujakulov, U K.; Sultanova, Sh A.; and Safarov, J E. (2021) "EXPERIMENTAL STUDY OF DRYING YACON TUBERS," Technical science and innovation: Vol. 2021: Iss. 2, Article 7.
DOI: https://doi.org/10.51346/tstu-01.21.2-77-0125
Available at: https://btstu.researchcommons.org/journal/vol2021/iss2/7