Temperature field of a thermoelectric system for extracting foreign objects when introducing into the human body
Objective. The objective of the article is to create a design model of a thermoelectric system for extracting foreign objects from the human body by freezing when introduced into the cavity, as well as to study the internal thermophysical processes.Methods. A design model of a thermoelectric system...
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| Format: | Article |
| Language: | Russian |
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Dagestan State Technical University
2021-01-01
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| Series: | Вестник Дагестанского государственного технического университета: Технические науки |
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| Online Access: | https://vestnik.dgtu.ru/jour/article/view/874 |
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| _version_ | 1849250222995144704 |
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| author | O. V. Evdulov A. M. Nasrulaev |
| author_facet | O. V. Evdulov A. M. Nasrulaev |
| author_sort | O. V. Evdulov |
| collection | DOAJ |
| description | Objective. The objective of the article is to create a design model of a thermoelectric system for extracting foreign objects from the human body by freezing when introduced into the cavity, as well as to study the internal thermophysical processes.Methods. A design model of a thermoelectric system for extracting foreign objects from the human body by freezing the thermoelectric system introduced into the cavity is developed, based on solving the problem of thermal conductivity, taking into account the thermophysical characteristics of a biological object, foreign object, and a thermoelectric module.Results. As a result of the numerical experiment, the authors obtained graphs of temperature changes at various points of the thermoelectric system when introduced into the human body to extract a foreign object, depending on the power of the thermoelectric system, the parameters of the module materials, and external conditions. It is determined that the device can use a standard thermoelectric module with a cooling capacity from 4500 W/m2 to 7000 W/m2 with a duration of 6-7 minutes for entering the system mode.Conclusion. It is established that the selection of thermoelectric module parameters must be guided by the limitations of the device operation, as well as medical norms and standards to avoid the process of cold injury of adjacent tissues, which is fully provided in the proposed design. A method for improving the efficiency of the system is proposed, according to which the thermoelectric system is pre-cooled using an external cold source, and forced modes of thermoelectric module operation are used. |
| format | Article |
| id | doaj-art-a566a42b8e334883a8a3f3d3ddc2ab7b |
| institution | Kabale University |
| issn | 2073-6185 2542-095X |
| language | Russian |
| publishDate | 2021-01-01 |
| publisher | Dagestan State Technical University |
| record_format | Article |
| series | Вестник Дагестанского государственного технического университета: Технические науки |
| spelling | doaj-art-a566a42b8e334883a8a3f3d3ddc2ab7b2025-08-20T03:57:19ZrusDagestan State Technical UniversityВестник Дагестанского государственного технического университета: Технические науки2073-61852542-095X2021-01-01474273610.21822/2073-6185-2020-47-4-27-36603Temperature field of a thermoelectric system for extracting foreign objects when introducing into the human bodyO. V. Evdulov0A. M. Nasrulaev1Daghestan State Technical UniversityDaghestan State Technical UniversityObjective. The objective of the article is to create a design model of a thermoelectric system for extracting foreign objects from the human body by freezing when introduced into the cavity, as well as to study the internal thermophysical processes.Methods. A design model of a thermoelectric system for extracting foreign objects from the human body by freezing the thermoelectric system introduced into the cavity is developed, based on solving the problem of thermal conductivity, taking into account the thermophysical characteristics of a biological object, foreign object, and a thermoelectric module.Results. As a result of the numerical experiment, the authors obtained graphs of temperature changes at various points of the thermoelectric system when introduced into the human body to extract a foreign object, depending on the power of the thermoelectric system, the parameters of the module materials, and external conditions. It is determined that the device can use a standard thermoelectric module with a cooling capacity from 4500 W/m2 to 7000 W/m2 with a duration of 6-7 minutes for entering the system mode.Conclusion. It is established that the selection of thermoelectric module parameters must be guided by the limitations of the device operation, as well as medical norms and standards to avoid the process of cold injury of adjacent tissues, which is fully provided in the proposed design. A method for improving the efficiency of the system is proposed, according to which the thermoelectric system is pre-cooled using an external cold source, and forced modes of thermoelectric module operation are used.https://vestnik.dgtu.ru/jour/article/view/874foreign objects extractionfreezingthermoelectric systemsimulation modelingthermophysical processesnumerical experiment |
| spellingShingle | O. V. Evdulov A. M. Nasrulaev Temperature field of a thermoelectric system for extracting foreign objects when introducing into the human body Вестник Дагестанского государственного технического университета: Технические науки foreign objects extraction freezing thermoelectric system simulation modeling thermophysical processes numerical experiment |
| title | Temperature field of a thermoelectric system for extracting foreign objects when introducing into the human body |
| title_full | Temperature field of a thermoelectric system for extracting foreign objects when introducing into the human body |
| title_fullStr | Temperature field of a thermoelectric system for extracting foreign objects when introducing into the human body |
| title_full_unstemmed | Temperature field of a thermoelectric system for extracting foreign objects when introducing into the human body |
| title_short | Temperature field of a thermoelectric system for extracting foreign objects when introducing into the human body |
| title_sort | temperature field of a thermoelectric system for extracting foreign objects when introducing into the human body |
| topic | foreign objects extraction freezing thermoelectric system simulation modeling thermophysical processes numerical experiment |
| url | https://vestnik.dgtu.ru/jour/article/view/874 |
| work_keys_str_mv | AT ovevdulov temperaturefieldofathermoelectricsystemforextractingforeignobjectswhenintroducingintothehumanbody AT amnasrulaev temperaturefieldofathermoelectricsystemforextractingforeignobjectswhenintroducingintothehumanbody |