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Thermal modelling for lithium ion batteries is important to evaluate battery thermal safety and to refine battery thermal designs. To develop a reliable and efficient thermal model, the following key factors needs to be addressed: the techniques to accurately determine the thermal parameters and heat generation rates, the reasonably simplified thermo-electrical equations and the experimental validation...
Charpy impact behaviors of eutectic SnBi solder joints with and without presence of Joule heating effect were investigated by employing a pendulum-type impact tester. The temperature rise induced by Joule heating effect at joined region can reach to 6.2°C and 1.7°C when the applied electric current was 10 A and 5 A, respectively. In addition, the temperature distribution of solder joints during the...
Thermoforming is one of the most versatile and economical processes to produce polymer products, and the key drawback is difficult to control the thickness of final products. The temperature distribution after the preheating process affects to the thickness distribution of final products. The cycle time must be decreased in order to improve the competitive power of the products, but the preheating...
A method using thermal analysis has been recommended to substitute the original method what was based on trial and error for manufacturing a high performance, low cost product. At first, a large scale vacuum furnace was modeled according to a real product, and it was simulated using the material properties in a previous study under the condition of having argon ambient gas. Finally, the performance...
The steam generation mechanism is the key technology of the domestic steam cleaner. Not only the weight and price of a steam cleaner but also the performance of a steam generation mechanism must be considered to improve the competitive power of the products. In this study, a new steam generator which using a cartridge heater was recommended for compensating the drawback of the spray boiling steam...
Thermoforming is one of the most versatile and economical processes available for shaping polymer products. To improve the competitive power of the products, the manufacturing fee should be continuously reduced. But, the required heat can not be freely reduced because of the temperature difference between surface and center of the sheets. In this paper, an optimal design using NURBS and RSM was carried...
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