Thermoelectric device for fastening parts by freezing during machining
https://doi.org/10.21822/2073-6185-2024-51-2-15-22
Abstract
Objective. The purpose of the study is to develop the design of a thermoelectric device for fastening parts by freezing during machining, and to analyze its parameters and characteristics.
Method. The design of a thermoelectric device for fastening parts using the freezing method during their machining is described. The device includes a high-current fuel cell, made on the basis of layered thermoelements with improved thermomechanical characteristics. The fuel cell is interfaced with a heat-equalizing ceramic plate on the side of the cold junctions, and on the side of the hot junctions, through a similar ceramic plate, it is in contact with the heat release system.
Result. To ensure the required operating mode of the device, a layered thermoelectric battery developed at the Research Institute of Semiconductor Thermoelectric Devices and Devices can be used in its composition. T.A. Ismailov”, Dagestan State Technical University.
Conclusion. The operating power range of the used fuel cell is in the range of 20-50 W with an average temperature difference between the junctions of 50 K, the supply current is 50-80 A with a power consumption of 50-160 W. The refrigeration coefficient varies from 0.1 to 0.45.
Keywords
fastening of parts,
mechanical processing,
freezing,
thermoelectric device,
thermoelectric battery,
lubricant and cooling liquid,
cooling capacity,
electric current strength
Supporting agencies: The study was supported by the Russian Science Foundation grant No. 23-29-00130, https://rscf.ru/project/23-29-00130/.
About the Authors
O. V. Evdulov
Daghestan State Technical University
Russian Federation
Russian Federation
Oleg V. Evdulov, Dr. Sci. (Eng.), Assoc. Prof., Department of Theoretical and General Electrical Engineering
70 I. Shamilya Ave., Makhachkala 367026
D. V. Evdulov
Daghestan State Technical University
Russian Federation
Russian Federation
Denis V. Evdulov, Cand. Sci. (Eng.), Senior lecturer, Department of Theoretical and General Electrical Engineering
70 I. Shamilya Ave., Makhachkala 367026
S. G. Gasanova
Daghestan State Technical University
Russian Federation
Russian Federation
Sarabika G. Gasanova, Graduate Student, Department of Theoretical and General Electrical Engineering
70 I. Shamilya Ave., Makhachkala 367026
Z. M.–Z. Badrudinova
Daghestan State Technical University
Russian Federation
Russian Federation
Zaira M.-Z., Badrudinova, Graduate Student, Department of Theoretical and General Electrical Engineering
70 I. Shamilya Ave., Makhachkala 367026
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Review
For citations:
Evdulov O.V., Evdulov D.V., Gasanova S.G., Badrudinova Z.M. Thermoelectric device for fastening parts by freezing during machining. Herald of Dagestan State Technical University. Technical Sciences. 2024;51(2):15-22. (In Russ.) https://doi.org/10.21822/2073-6185-2024-51-2-15-22
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