Análisis de la incidencia del ángulo de dispersión y distancia de aplicación de aire en un sistema de refrigeración de baterías de Ion de Litio.
In this work, a cooling prototype for a lithium-ion battery pack is studied and emulated. The system consists of an experimental bank of 16 aluminum cylinders ("pseudo-batteries") with a geometry similar to 18650 batteries, inside which nickel strips are housed. The pseudo-batteries are ar...
Kaydedildi:
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| Materyal Türü: | masterThesis |
| Dil: | spa |
| Baskı/Yayın Bilgisi: |
2024
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| Konular: | |
| Online Erişim: | https://dspace.unl.edu.ec/jspui/handle/123456789/31344 |
| Etiketler: |
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Etiketle | Özet: | In this work, a cooling prototype for a lithium-ion battery pack is studied and emulated. The system consists of an experimental bank of 16 aluminum cylinders ("pseudo-batteries") with a geometry similar to 18650 batteries, inside which nickel strips are housed. The pseudo-batteries are arranged in a 4 x 4 matrix, with tubes containing several air injection nozzles placed in the inter-cylinder spaces and oriented perpendicularly to the pseudo-batteries. This prototype allows testing at different pseudo-battery temperatures, varying distances between them, as well as the distance to the air injection tubes. These tubes, in turn, allow for experimentation with different airflow rates and nozzle outlet angles, influencing the dispersion angle and application distance of the cooling flow, thus affecting the overall efficiency of the cooling system. A total of 15 experiments were conducted to determine the most efficient configuration for heat extraction from the pseudo-battery pack. The experimental phase identified that the optimal configuration includes a 28.4 mm separation between the centers of the pseudo-batteries, air injection nozzles with a diameter of 1 mm, an outlet angle of 60°, and an average flow rate of 1.62 l/min. This configuration maintained the lowest steady-state temperature in the most critical pseudo-battery, located approximately at the center of the array. After identifying the best configuration, its performance was validated using a computational fluid dynamics (CFD) simulation. The simulation demonstrated the proper operation of the prototype, with temperature results in the critical element differing by only 3.1% from the experimental data. This test bench will serve as an analytical tool for this relatively novel cooling alternative, primarily studied in electric vehicles. Keywords: Lithium Ion batteries, CFD simulation, cooling nozzles, temperature. |
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