Searching. Please wait…
1580
37
170
29264
4420
2603
347
391
Abstract: The primary wick in a loop heat pipe device is a key component that is central to the operation of the device. Both high permeability and capillary pumping capacity, two properties highly dependent on wick structure, are strongly desirable for a satisfactory thermal performance. In this paper, selective laser melting (SLM), a three-dimensional (3D) printing technology, is used to create a primary wick for an 80 W heat transfer application. The permeability and capillarity values of this wick, experimentally measured, are compared with those built with the most widely used technologies nowadays, such as powder sintering and meshes. In this study, the SLM scaffold is shown to satisfy the minimum values required by the application in terms of capillarity and permeability: 0.031 mm/s and 4 × 10?12 m2, respectively. Our comparative study revealed that the wick produced with the SLM technology presented higher values of permeability, by two orders of magnitude, and slightly higher capillary figures than those corresponding to powder sintering for such application. However, it had capillary values well below those of a stainless-steel mesh. The hydraulic behavior of the SLM wick was better than that of the sintered copper powder, because it not only met the above-mentioned specifications, but it also improved its performance.
Fuente: Applied Sciences, 2019, 9(14), 2905
Publisher: MDPI
Publication date: 19/07/2019
No. of pages: 22
Publication type: Article
DOI: 10.3390/app9142905
ISSN: 2076-3417
Consult in UCrea Read publication
ESARTE, JESÚS
JESÚS MARÍA BLANCO ILZARBE
BERNARDINI, ANGELA
RAMON SANCIBRIAN HERRERA
Back