MATEC Web Conf.
Volume 354, 202210th International Symposium on Occupational Health and Safety (SESAM 2021)
|Number of page(s)||7|
|Published online||06 January 2022|
On the estimation of maximum surface temperature for cells
1 National Institute for Mine Safety and Protection to Explosion - INSEMEX, Department for Safety of Installations and Explosion-proof Equipment, 32-34 G-ral Vasile Milea, Petroșani, Romania
2 Technical University of Cluj-Napoca, Faculty of Automation and Computer Science, St. Memorandumului 28, Cluj-Napoca 400114
* Corresponding author: Marius.Darie@insemex.ro
In paperwork is presented the estimation of the maximum surface temperature of cells exposed to specific tests for the intrinsic safety type of protection. Particularly, it presents the thermal resistance of the short-circuit test-stand results. The first part introduces the aspects regarding the risk of explosion. The risk of explosion occurs due to the presence of technical equipment in areas where flammable substances may occur. The second part itemizes the requirements for the testing of cells. Also, is introduced the stand configuration and performance aspects. The third part of the paper has been dedicated to the presentation and the discussion of the obtained results. The analysis of the test results highlighted the range of thermal resistance. This result could help estimation of the surface temperature of cells based on their capacity and internal resistance. The convection coefficients were determined. The process of deep discharge destroys the inner electrochemical of the cell system. Therefore, it permits energy recovery lower than a fraction of a tenth.
© The authors, published by EDP Sciences, 2022
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