Academic Journal
Analysis of dynamics and prediction of reliability indicators of a cooling thermoelement with the predefined geometry of branches
| Title: | Analysis of dynamics and prediction of reliability indicators of a cooling thermoelement with the predefined geometry of branches |
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| Authors: | Zaykov, Vladimir, Mescheryakov, Vladimir, Zhuravlov, Yurii, Mescheryakov, Dmitry |
| Source: | Eastern-European Journal of Enterprise Technologies; Том 5, № 8 (95) (2018): Energy-saving technologies and equipment; 41-51 Восточно-Европейский журнал передовых технологий; Том 5, № 8 (95) (2018): Энергосберегающие технологии и оборудование; 41-51 Східно-Європейський журнал передових технологій; Том 5, № 8 (95) (2018): Енергозберігаючі технології та обладнання; 41-51 |
| Publisher Information: | Private Company Technology Center, 2018. |
| Publication Year: | 2018 |
| Subject Terms: | 13. Climate action, термоелектричний охолоджувач, геометрія термоелементів, вихід на стаціонарний режим, показники надійності, 0211 other engineering and technologies, 0202 electrical engineering, electronic engineering, information engineering, термоэлектрический охладитель, геометрия термоэлементов, выход на стационарный режим, показатели надежности, thermoelectric cooler, geometry of thermoelements, time required to enter a stationary mode, reliability indicators, 02 engineering and technology, 7. Clean energy, UDC 621.362.192 |
| Description: | We have investigated the influence of structural and technological elements on the basic parameters, reliability indicators, and the dynamics of operation of thermoelectric cooling devices under various current modes within the operating range of temperature differences. We analyzed the ratios of correlation between the time required to enter a stationary mode and relative intensity of failures in a cooler, and energy indicators, thermoelectric parameters of thermoelements, structural and technological indicators. An analysis of the time required to enter a stationary mode was performed for different modes of operation from the maximum cooling capacity to the minimum failure rate. It is shown that in order to reduce the time required for a cooler to enter a stationary mode, at the predefined geometry of thermoelements and temperature difference, it is necessary to employ the mode of maximum cooling capacity. The quantitative analysis showed that at the predefined geometry of thermoelements branches the time required to enter a stationary working mode does not depend on the number of thermoelements in a thermoelectric cooler. At a difference of temperatures close to the maximum value, the time required to enter a stationary working mode differs slightly for all modes of operation. Comparative analysis of the basic parameters of reliability indicators and dynamical characteristics makes it possible to find compromise solutions when constructing thermoelectric devices taking into consideration the weight of each of the constraints. From a practical point of view, the results obtained suggest that increasing the cooling rate does not require changes to the existing technology for making thermoelectric coolers. Control over performance speed during transition from one stationary state to another state is executed through the selection of current modes in the operation of a thermoelectric device. In this case, there is a possibility to choose the conditions under which reliability indicators match the permissible limit. |
| Document Type: | Article |
| File Description: | application/pdf |
| ISSN: | 1729-4061 1729-3774 |
| DOI: | 10.15587/1729-4061.2018.123890 |
| Access URL: | http://journals.uran.ua/eejet/article/download/123890/143467 http://journals.uran.ua/eejet/article/download/123890/143467 http://journals.uran.ua/eejet/article/view/123890 http://journals.uran.ua/eejet/article/view/123890 |
| Rights: | CC BY |
| Accession Number: | edsair.doi.dedup.....6d118227434c470143f747e15d9b257f |
| Database: | OpenAIRE |
| ISSN: | 17294061 17293774 |
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| DOI: | 10.15587/1729-4061.2018.123890 |