Transient performance of a Peltier super cooler under varied electric pulse conditions with phase change material
Transient performance of a Peltier super cooler under varied electric pulse conditions with phase change material
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DOI：
10.1016/j.enconman.2019.111822
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发表时间：
2019-10
影响因子：
10.4
通讯作者：
C. Selvam;S. Manikandan;S. Kaushik;Ravita Lamba;S. Harish
中科院分区：
文献类型：
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作者：
C. Selvam;S. Manikandan;S. Kaushik;Ravita Lamba;S. Harish
在这项工作中，一种新的技术，以提高性能的Peltier制冷机在不同的电脉冲条件下，已被研究与使用相变材料（PCM）。建立了带热沉的帕尔贴制冷机沿着方向的二维传热模型，并对其进行了数值研究。结果表明，与脉冲运行下不带PCM的Peltier制冷机相比，脉冲运行下带PCM的Peltier制冷机的冷侧温度从−14.5 °C显著降低到−17.5 °C。研究还发现，与没有PCM的脉冲运行相比，在PCM的脉冲运行下，Peltier制冷机的COP没有显著降低。通过改变热侧传热系数、相变材料在热沉中的填充体积和电脉冲的形状，进行了这些研究。实验结果表明，随着相变材料填充量的增加，珀耳帖制冷机的过冷度增加。此外，已经发现，与斜坡和三角形脉冲相比，方波脉冲的珀耳帖冷却器的过冷性能更占优势。
In this work, a novel technique to improve the performance of Peltier cooler under varying electric pulse conditions has been studied with the use of phase change material (PCM). The 2D heat transfer model of Peltier cooler along with heat sink has been developed and studied numerically. The results show that the cold side temperature of Peltier cooler with PCM has been reduced significantly from −14.5 °C to −17.5 °C under pulse operation as compared to the Peltier cooler without PCM under pulse operation. It is also found that,there is no significant reduction in COP of the Peltier cooler under pulse operation with PCM as compared to pulse operation without PCM. These studies have been carried out by varying the hot side heat transfer coefficient, fill volume of PCM in heat sink and the shape of the electric pulse. It has been observed that the super cooling of Peltier cooler increases with increase in fill volume of PCM. Furthermore, it has been found that the super cooling performance of the Peltier cooler is more predominant with the square pulse as compared to ramp and triangular pulses.