Experimental investigation on thermal characteristics of a capillary pumped loop with different reservoir locations
Experimental investigation on thermal characteristics of a capillary pumped loop with different reservoir locations
复制标题
DOI：
10.1016/j.ijheatmasstransfer.2020.119964
复制
发表时间：
2020-09
影响因子：
5.2
通讯作者：
K. Odagiri;H. Nagano;H. Ogawa
中科院分区：
文献类型：
--
作者：
K. Odagiri;H. Nagano;H. Ogawa
本文研究了储液器位置对毛细泵送回路（CPL）传热特性的影响。所设计的CPL具有直径为12 mm、长为65 mm的圆柱形蒸发器，毛细芯采用孔径为4.4 μ m的不锈钢多孔介质。传热长度设计为1000 mm，分别在距蒸发器距离L= 150 mm、L= 250 mm、L= 750 mm、L= 1450 mm四种不同位置下进行实验，结果表明：发现情况（1）的CPL显示出高的工作温度和小得多的传热能力，例如10 W。对于（2）-（4）的情况，最大传热能力达到140-160 W，并且显示出在60 - 100° C范围内的操作温度的良好可控性。讨论了情况（1）的低传热性能的原因和操作特性的差异。有人发现，有一个设计限制的水库位置的CPL。此外，成功地演示了储液器远离蒸发器的CPL的操作。
This paper presents an effect of reservoir location on heat transfer characteristics of a capillary pumped loop (CPL). The designed CPL has a cylindrical evaporator with a diameter of 12 mm and a length of 65 mm. A stainless steel porous medium that has a pore radius of 4.4 μ m is used as a wick. Heat transport length is designed as 1000 mm. The experiments were conducted with four types of reservoir location such as (1) Distance from the evaporator, L= 150 mm,(2) L= 250 mm,(3) L= 750 mm,(4) L= 1450 mm. As results, it was found that the CPL of case (1) showed high operating temperature and much smaller heat transfer capability such as 10 W. For cases of (2)–(4), the maximum heat transfer capability reached 140–160 W and showed the good controllability of the operating temperatures ranging from 60 to 100° C. The reason for the low heat transfer performance of case (1) and the difference in operational characteristics are discussed. It was found that there is a design limitation of the reservoir location of CPLs. In addition, the operation of the CPL that reservoir was located much far from the evaporator was successfully demonstrated.