Abstract
A novel stainless steel fiber–powder composite wick (SSF-PCW) is developed to obtain a wick with a high capillary pressure and good permeability for stainless steel heat pipes. The preparation process and microstructural characteristics of the SSF-PCW are presented, and the capillary performance, including the permeability and capillary pressure, is experimentally investigated. Then, the capillary performance of the SSF-PCW is compared with that of other single and composite wicks. Experimental results show that the powder particle size has a significant influence on the capillary performance of the SSF-PCW. Among the three filling powder sizes, the SSF-PCW with a powder size of 75–106 μm possesses the highest capillary pressure and rising velocity of the working fluid at the same porosity of the sintered stainless steel fiber skeleton. Compared with other reported wicks, the novel SSF-PCW yields a superior overall capillary performance, which can guide us to optimize stainless steel heat pipes. Data for ΔPcap·K of SSF-PCW2 are approximately 2.64 times larger than that for the V-grooved composite wick. Additionally, the modified correlations are also inferred to predict the permeability and overall capillary performance of SSF-PCW.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
