کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
652271 | 1457439 | 2012 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of biporous wicks for flat-plate loop heat pipe
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Two different methods, cold pressing sintering and loose powder sintering, are adopted to fabricate the biporous nickel wicks for loop heat pipes (LHPs) in the present study. Porosity of the wicks is measured by Archimedes method and radius and distribution of pores is observed by Scanning Electronic Microscope (SEM), and permeability of wicks is calculated by empirical equation. The effect of different sintering method, proportion of pore former, and sintering temperature on the wicks is investigated experimentally. Result shows that wicks are successfully fabricated, the optimal wicks are found to be sintered at 700 °C, using cold pressing sintering method, with pore former content 30% by volume; these wicks could reach the porosity of 77.40%, the permeability of 3.15 Ã 10â13 m2, and have sufficient mechanical strength to meet the machining requirements. The effect of lathing and wire electro discharge machining on surface pores of wick is analyzed by SEM. In order to verify the performance of the biporous wick, a flat plate type of LHP is designed, fabricated and tested in this paper, and the results presents that the LHP can startup and run reliably under different heat loads.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Thermal and Fluid Science - Volume 37, February 2012, Pages 91-97
Journal: Experimental Thermal and Fluid Science - Volume 37, February 2012, Pages 91-97
نویسندگان
Huan Li, ZhiChun Liu, BinBin Chen, Wei Liu, Chen Li, Jinguo Yang,